Added section numbering to each chapter.

Designing_Kalman_Filters.ipynb

@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:6790e915a872d1db0a6db2a07a08d735d2be341faf2b0c3720abe5b9628ae04e"
+  "signature": "sha256:63ae152874a0161848cb3170c24f73b9279fc0e24f7cb997ec958a1870ce9c18"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -25,227 +25,102 @@
       "from __future__ import division, print_function\n",
       "import matplotlib.pyplot as plt\n",
       "import book_format\n",
-      "book_format.load_style()"
+      "book_format.load_style()\n",
+      "\n",
+      "%install_ext https://raw.github.com/dpsanders/ipython_extensions/master/section_numbering/secnum.py\n",
+      "%load_ext secnum\n",
+      "%secnum"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
-       "html": [
-        "<style>\n",
-        "    div.cell{\n",
-        "        width: 850px;\n",
-        "        margin-left: 0% !important;\n",
-        "        margin-right: auto;\n",
-        "    }\n",
-        "    div.text_cell code {\n",
-        "        background: #F6F6F9;\n",
-        "        color: #0000FF;\n",
-        "   }\n",
-        "    h1 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "\t}\n",
-        "\t\n",
-        "    div.input_area {\n",
-        "        background: #F6F6F9;\n",
-        "        border: 1px solid #586e75;\n",
-        "    }\n",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Installed secnum.py. To use it, type:\n",
+        "  %load_ext secnum\n"
+       ]
+      },
+      {
+       "javascript": [
+        "console.log(\"Section numbering...\");\n",
         "\n",
-        "    .text_cell_render h1 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 30pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1em;\n",
-        "        display: block;\n",
-        "        white-space: wrap;\n",
-        "    } \n",
-        "    h2 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "function number_sections(threshold) {\n",
+        "\n",
+        "  var h1_number = 0;\n",
+        "  var h2_number = 0;\n",
+        "\n",
+        "  if (threshold === undefined) {\n",
+        "    threshold = 2;  // does nothing so far\n",
+        "  }\n",
+        "\n",
+        "  var cells = IPython.notebook.get_cells();\n",
+        "  \n",
+        "  for (var i=0; i < cells.length; i++) {\n",
+        "\n",
+        "    var cell = cells[i];\n",
+        "    if (cell.cell_type !== 'heading') continue;\n",
+        "    \n",
+        "    var level = cell.level;\n",
+        "    if (level > threshold) continue;\n",
+        "    \n",
+        "    if (level === 1) {\n",
+        "        \n",
+        "        h1_number ++;\n",
+        "        var h1_element = cell.element.find('h1');\n",
+        "        var h1_html = h1_element.html();\n",
+        "        \n",
+        "        console.log(\"h1_html: \" + h1_html);\n",
+        "\n",
+        "        var patt = /^[0-9]+\\.\\s(.*)/;   // section number at start of string\n",
+        "        var title = h1_html.match(patt);  // just the title\n",
+        "\n",
+        "        if (title != null) {  \n",
+        "          h1_element.html(h1_number + \". \" + title[1]);\n",
+        "        }\n",
+        "        else {\n",
+        "          h1_element.html(h1_number + \". \" + h1_html);\n",
+        "        }\n",
+        "        \n",
+        "        h2_number = 0;\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h2 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 20pt;\n",
-        "        font-style: italic;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    } \n",
-        "    h3 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "    \n",
+        "    if (level === 2) {\n",
+        "    \n",
+        "        h2_number ++;\n",
+        "        \n",
+        "        var h2_element = cell.element.find('h2');\n",
+        "        var h2_html = h2_element.html();\n",
+        "\n",
+        "        console.log(\"h2_html: \" + h2_html);\n",
+        "\n",
+        "        \n",
+        "        var patt = /^[0-9]+\\.[0-9]+\\.\\s/;\n",
+        "        var result = h2_html.match(patt);\n",
+        "\n",
+        "        if (result != null) {\n",
+        "          h2_html = h2_html.replace(result, \"\");\n",
+        "        }\n",
+        "\n",
+        "        h2_element.html(h1_number + \".\" + h2_number + \". \" + h2_html);\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h3 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 18pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 2em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h4 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h4 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 16pt;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h5 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h5 {\n",
-        "        font-weight: 300;\n",
-        "        font-style: normal;\n",
-        "        color: #1d3b84;\n",
-        "        font-size: 16pt;\n",
-        "        margin-bottom: 0em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    div.text_cell_render{\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "        line-height: 135%;\n",
-        "        font-size: 110%;\n",
-        "        width:750px;\n",
-        "        margin-left:auto;\n",
-        "        margin-right:auto;\n",
-        "        text-align:justify;\n",
-        "        text-justify:inter-word;\n",
-        "    }\n",
-        "    div.output_subarea.output_text.output_pyout {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    div.output_subarea.output_stream.output_stdout.output_text {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    code{\n",
-        "      font-size: 70%;\n",
-        "    }\n",
-        "    .rendered_html code{\n",
-        "    background-color: transparent;\n",
-        "    }\n",
-        "    ul{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li li{\n",
-        "        padding-left: 0.2em; \n",
-        "        margin-bottom: 0.2em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    ol{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ol li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    a:link{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:visited{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:hover{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:focus{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:active{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    .rendered_html :link {\n",
-        "       text-decoration: underline; \n",
-        "    }\n",
-        "    .rendered_html :hover {\n",
-        "       text-decoration: none; \n",
-        "    }\n",
-        "    .rendered_html :visited {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :focus {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :active {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .warning{\n",
-        "        color: rgb( 240, 20, 20 )\n",
-        "    } \n",
-        "    hr {\n",
-        "      color: #f3f3f3;\n",
-        "      background-color: #f3f3f3;\n",
-        "      height: 1px;\n",
-        "    }\n",
-        "    blockquote{\n",
-        "      display:block;\n",
-        "      background: #fcfcfc;\n",
-        "      border-left: 5px solid #c76c0c;\n",
-        "      font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "      width:680px;\n",
-        "      padding: 10px 10px 10px 10px;\n",
-        "      text-align:justify;\n",
-        "      text-justify:inter-word;\n",
-        "      }\n",
-        "      blockquote p {\n",
-        "        margin-bottom: 0;\n",
-        "        line-height: 125%;\n",
-        "        font-size: 100%;\n",
-        "      }\n",
-        "</style>\n",
-        "<script>\n",
-        "    MathJax.Hub.Config({\n",
-        "                        TeX: {\n",
-        "                           extensions: [\"AMSmath.js\"]\n",
-        "                           },\n",
-        "                tex2jax: {\n",
-        "                    inlineMath: [ ['$','$'], [\"\\\\(\",\"\\\\)\"] ],\n",
-        "                    displayMath: [ ['$$','$$'], [\"\\\\[\",\"\\\\]\"] ]\n",
-        "                },\n",
-        "                displayAlign: 'center', // Change this to 'center' to center equations.\n",
-        "                \"HTML-CSS\": {\n",
-        "                    styles: {'.MathJax_Display': {\"margin\": 4}}\n",
-        "                }\n",
-        "        });\n",
-        "</script>\n"
+        "    \n",
+        "  }\n",
+        "  \n",
+        "}\n",
+        "\n",
+        "number_sections();\n",
+        "\n",
+        "// $([IPython.evnts]).on('create.Cell', number_sections);\n",
+        "\n",
+        "$([IPython.events]).on('selected_cell_type_changed.Notebook', number_sections);\n",
+        "\n"
        ],
        "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 1,
-       "text": [
-        "<IPython.core.display.HTML at 0x21b2c90>"
-       ]
+       "output_type": "display_data"
       }
      ],
      "prompt_number": 1
@@ -336,9 +211,9 @@
       {
        "metadata": {},
        "output_type": "display_data",
-       "png": 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truncated
        "text": [
-        "<matplotlib.figure.Figure at 0x312cad0>"
+        "<matplotlib.figure.Figure at 0x2679a10>"
        ]
       }
      ],
@@ -672,9 +547,9 @@
       {
        "metadata": {},
        "output_type": "display_data",
-       "png": 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truncated
        "text": [
-        "<matplotlib.figure.Figure at 0x31aa610>"
+        "<matplotlib.figure.Figure at 0x26f8210>"
        ]
       }
      ],
@@ -751,9 +626,9 @@
       {
        "metadata": {},
        "output_type": "display_data",
-       "png": 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truncated
        "text": [
-        "<matplotlib.figure.Figure at 0x35fa750>"
+        "<matplotlib.figure.Figure at 0x2aa8950>"
        ]
       },
       {
@@ -838,7 +713,7 @@
        "output_type": "display_data",
        "png": 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        "text": [
-        "<matplotlib.figure.Figure at 0x334e110>"
+        "<matplotlib.figure.Figure at 0x289cb10>"
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@@ -903,7 +778,7 @@
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truncated
        "text": [
-        "<matplotlib.figure.Figure at 0x3350250>"
+        "<matplotlib.figure.Figure at 0x2730390>"
        ]
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      ],
@@ -1175,9 +1050,9 @@
       {
        "metadata": {},
        "output_type": "display_data",
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truncated
        "text": [
-        "<matplotlib.figure.Figure at 0x31c6550>"
+        "<matplotlib.figure.Figure at 0x28b4050>"
        ]
       }
      ],
@@ -1291,7 +1166,7 @@
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 27
+     "prompt_number": 19
     },
     {
      "cell_type": "markdown",
@@ -1325,11 +1200,11 @@
        "output_type": "display_data",
        "png": 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truncated
        "text": [
-        "<matplotlib.figure.Figure at 0x3bb37d0>"
+        "<matplotlib.figure.Figure at 0x2898e90>"
        ]
       }
      ],
-     "prompt_number": 28
+     "prompt_number": 20
     },
     {
      "cell_type": "markdown",
@@ -1410,7 +1285,7 @@
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 29
+     "prompt_number": 21
     },
     {
      "cell_type": "code",
@@ -1436,13 +1311,14 @@
       "\n",
       "    p1, = plt.plot (xs, ys, 'r--')\n",
       "    p2, = plt.plot (pxs, pys)\n",
+      "    plt.axis('equal')\n",
       "    plt.legend([p1,p2], ['filter', 'measurement'], 2)\n",
       "    plt.show()"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 41
+     "prompt_number": 22
     },
     {
      "cell_type": "code",
@@ -1451,7 +1327,7 @@
       "dt = 0.1\n",
       "f1 = ball_filter(dt,R=0.1, Q=0.1)\n",
       "\n",
-      "traj = BallTrajectory2D (20., angle_degrees=45., noise_scale=0.0)\n",
+      "traj = BallTrajectory2D (20., angle_degrees=60., noise_scale=0.0)\n",
       "zs = [traj.update(t) for t in np.arange(dt,100,dt)]\n",
       "\n",
       "plot_ball_filter (zs)"
@@ -1462,13 +1338,13 @@
       {
        "metadata": {},
        "output_type": "display_data",
-       "png": 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truncated
+       "png": 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truncated
        "text": [
-        "<matplotlib.figure.Figure at 0x31d73d0>"
+        "<matplotlib.figure.Figure at 0x270ff10>"
        ]
       }
      ],
-     "prompt_number": 42
+     "prompt_number": 23
     },
     {
      "cell_type": "markdown",
@@ -1498,21 +1374,21 @@
       {
        "metadata": {},
        "output_type": "display_data",
-       "png": 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+       "png": 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truncated
        "text": [
-        "<matplotlib.figure.Figure at 0x31c99d0>"
+        "<matplotlib.figure.Figure at 0x2e25950>"
        ]
       },
       {
        "metadata": {},
        "output_type": "display_data",
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truncated
+       "png": 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truncated
        "text": [
-        "<matplotlib.figure.Figure at 0x31c9c10>"
+        "<matplotlib.figure.Figure at 0x2cd8710>"
        ]
       }
      ],
-     "prompt_number": 43
+     "prompt_number": 24
     },
     {
      "cell_type": "markdown",
@@ -1539,7 +1415,7 @@
       "dt = 0.1\n",
       "f1 = ball_filter(dt, R=.16, Q=0.0)\n",
       "\n",
-      "traj = BallTrajectory2D (40., angle_degrees=45., noise_scale=0.4)\n",
+      "traj = BallTrajectory2D (40., angle_degrees=60., noise_scale=0.4)\n",
       "zs = [traj.update(t) for t in np.arange(dt,100,dt)]\n",
       "plot_ball_filter (zs)"
      ],
@@ -1549,13 +1425,13 @@
       {
        "metadata": {},
        "output_type": "display_data",
-       "png": 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truncated
+       "png": 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truncated
        "text": [
-        "<matplotlib.figure.Figure at 0x31d7d10>"
+        "<matplotlib.figure.Figure at 0x33e3e50>"
        ]
       }
      ],
-     "prompt_number": 44
+     "prompt_number": 25
     },
     {
      "cell_type": "markdown",
@@ -1583,8 +1459,7 @@
       "\n",
       "x,y = baseball.compute_trajectory(v_0_mph = 90., theta=65., dt=dt)\n",
       "zs = zip (x,y)\n",
-      "plot_ball_filter (zs)\n",
-      "\n"
+      "plot_ball_filter (zs)"
      ],
      "language": "python",
      "metadata": {},
@@ -1592,13 +1467,13 @@
       {
        "metadata": {},
        "output_type": "display_data",
-       "png": 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truncated
+       "png": 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truncated
        "text": [
-        "<matplotlib.figure.Figure at 0x3bee8d0>"
+        "<matplotlib.figure.Figure at 0x2679950>"
        ]
       }
      ],
-     "prompt_number": 61
+     "prompt_number": 26
     },
     {
      "cell_type": "code",
@@ -1627,9 +1502,10 @@
       "    f1.R = np.mat(np.eye(6)) * R \n",
       "    \n",
       "    f1.Q = np.zeros((6,6))\n",
-      "    f1.Q[4,4] = Q\n",
+      "    f1.Q[2,2] = Q    \n",
+      "    f1.Q[5,5] = Q\n",
       "    f1.x = np.mat([0, 0 , 0, 0, 0, 0]).T\n",
-      "    f1.P = np.eye(6) * 5.\n",
+      "    f1.P = np.eye(6) * 50.\n",
       "    f1.B = 0.\n",
       "    f1.u = 0\n",
       "    \n",
@@ -1638,7 +1514,7 @@
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 67
+     "prompt_number": 31
     },
     {
      "cell_type": "code",
@@ -1664,28 +1540,26 @@
       "\n",
       "    p1, = plt.plot (xs, ys, 'r--')\n",
       "    p2, = plt.plot (pxs, pys)\n",
+      "    plt.axis('equal')\n",
       "    plt.legend([p1,p2], ['filter', 'measurement'], 2)\n",
       "    plt.show()"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 85
+     "prompt_number": 32
     },
     {
      "cell_type": "code",
      "collapsed": false,
      "input": [
       "dt = 0.1\n",
-      "noise = 0.3\n",
+      "noise = 0.2\n",
       "f1 = ball_filter6(dt, R=.16, Q=0.1)\n",
       "\n",
       "x,y = baseball.compute_trajectory(v_0_mph = 90., theta=65., dt=dt)\n",
-      "zs = zip (x,y)\n",
-      "znoise = [(i+randn()*noise,j+randn()*noise) for (i,j) in zs]\n",
-      "plot_ball_filter6 (znoise)\n",
-      "print (zs[0:5])\n",
-      "print (znoise[0:5])"
+      "znoise = [(i+randn()*noise,j+randn()*noise) for (i,j) in zip(x,y)]\n",
+      "plot_ball_filter6 (znoise)"
      ],
      "language": "python",
      "metadata": {},
@@ -1693,21 +1567,53 @@
       {
        "metadata": {},
        "output_type": "display_data",
-       "png": 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+       "png": 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truncated
        "text": [
-        "<matplotlib.figure.Figure at 0x3e35190>"
+        "<matplotlib.figure.Figure at 0x33e5910>"
        ]
-      },
+      }
+     ],
+     "prompt_number": 33
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "look at P"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "print (f1.P)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
        "text": [
-        "[(0.0, 0.0), (1.700193266982834, 3.646076227248443), (3.363396716383785, 7.114827534704153), (4.989282707845675, 10.407750130907692), (6.577522827472383, 13.526428179417952)]\n",
-        "[(0.0077428794280200615, -0.24993790836595048), (1.6319949358597867, 3.906624591863025), (2.927767750429539, 7.282837525906626), (4.889897158515106, 10.321582956313172), (6.55031695691016, 13.756792084374545)]\n"
+        "[[ 0.02143298  0.01351531  0.00364892  0.          0.          0.        ]\n",
+        " [ 0.01351531  0.01153516  0.00352809  0.          0.          0.        ]\n",
+        " [ 0.00364892  0.00352809  0.00115592  0.          0.          0.        ]\n",
+        " [ 0.          0.          0.          0.05456716  0.11122734  0.01865339]\n",
+        " [ 0.          0.          0.          0.11122734  0.5379301   0.07344247]\n",
+        " [ 0.          0.          0.          0.01865339  0.07344247  0.18002138]]\n"
        ]
       }
      ],
-     "prompt_number": 88
+     "prompt_number": 30
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [],
+     "language": "python",
+     "metadata": {},
+     "outputs": [],
+     "prompt_number": 30
     }
    ],
    "metadata": {}

Extended_Kalman_Filters.ipynb

@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:33c57875ece7c340a1489961be89bf26faefec05e914f558690242db4a4be9a8"
+  "signature": "sha256:cd6116a16a3f1c69eb33c20e75304e2535541d84c9849c2e98cdfccb2c84b043"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -25,227 +25,101 @@
       "from __future__ import division, print_function\n",
       "import matplotlib.pyplot as plt\n",
       "import book_format\n",
-      "book_format.load_style()"
+      "book_format.load_style()\n",
+      "%install_ext https://raw.github.com/dpsanders/ipython_extensions/master/section_numbering/secnum.py\n",
+      "%load_ext secnum\n",
+      "%secnum"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
-       "html": [
-        "<style>\n",
-        "    div.cell{\n",
-        "        width: 850px;\n",
-        "        margin-left: 0% !important;\n",
-        "        margin-right: auto;\n",
-        "    }\n",
-        "    div.text_cell code {\n",
-        "        background: #F6F6F9;\n",
-        "        color: #0000FF;\n",
-        "   }\n",
-        "    h1 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "\t}\n",
-        "\t\n",
-        "    div.input_area {\n",
-        "        background: #F6F6F9;\n",
-        "        border: 1px solid #586e75;\n",
-        "    }\n",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Installed secnum.py. To use it, type:\n",
+        "  %load_ext secnum\n"
+       ]
+      },
+      {
+       "javascript": [
+        "console.log(\"Section numbering...\");\n",
         "\n",
-        "    .text_cell_render h1 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 36pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1em;\n",
-        "        display: block;\n",
-        "        white-space: wrap;\n",
-        "    } \n",
-        "    h2 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "function number_sections(threshold) {\n",
+        "\n",
+        "  var h1_number = 0;\n",
+        "  var h2_number = 0;\n",
+        "\n",
+        "  if (threshold === undefined) {\n",
+        "    threshold = 2;  // does nothing so far\n",
+        "  }\n",
+        "\n",
+        "  var cells = IPython.notebook.get_cells();\n",
+        "  \n",
+        "  for (var i=0; i < cells.length; i++) {\n",
+        "\n",
+        "    var cell = cells[i];\n",
+        "    if (cell.cell_type !== 'heading') continue;\n",
+        "    \n",
+        "    var level = cell.level;\n",
+        "    if (level > threshold) continue;\n",
+        "    \n",
+        "    if (level === 1) {\n",
+        "        \n",
+        "        h1_number ++;\n",
+        "        var h1_element = cell.element.find('h1');\n",
+        "        var h1_html = h1_element.html();\n",
+        "        \n",
+        "        console.log(\"h1_html: \" + h1_html);\n",
+        "\n",
+        "        var patt = /^[0-9]+\\.\\s(.*)/;   // section number at start of string\n",
+        "        var title = h1_html.match(patt);  // just the title\n",
+        "\n",
+        "        if (title != null) {  \n",
+        "          h1_element.html(h1_number + \". \" + title[1]);\n",
+        "        }\n",
+        "        else {\n",
+        "          h1_element.html(h1_number + \". \" + h1_html);\n",
+        "        }\n",
+        "        \n",
+        "        h2_number = 0;\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h2 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 20pt;\n",
-        "        font-style: italic;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 1.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    } \n",
-        "    h3 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "    \n",
+        "    if (level === 2) {\n",
+        "    \n",
+        "        h2_number ++;\n",
+        "        \n",
+        "        var h2_element = cell.element.find('h2');\n",
+        "        var h2_html = h2_element.html();\n",
+        "\n",
+        "        console.log(\"h2_html: \" + h2_html);\n",
+        "\n",
+        "        \n",
+        "        var patt = /^[0-9]+\\.[0-9]+\\.\\s/;\n",
+        "        var result = h2_html.match(patt);\n",
+        "\n",
+        "        if (result != null) {\n",
+        "          h2_html = h2_html.replace(result, \"\");\n",
+        "        }\n",
+        "\n",
+        "        h2_element.html(h1_number + \".\" + h2_number + \". \" + h2_html);\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h3 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 18pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 2em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h4 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h4 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 16pt;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h5 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h5 {\n",
-        "        font-weight: 300;\n",
-        "        font-style: normal;\n",
-        "        color: #1d3b84;\n",
-        "        font-size: 16pt;\n",
-        "        margin-bottom: 0em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    div.text_cell_render{\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "        line-height: 135%;\n",
-        "        font-size: 125%;\n",
-        "        width:750px;\n",
-        "        margin-left:auto;\n",
-        "        margin-right:auto;\n",
-        "        text-align:justify;\n",
-        "        text-justify:inter-word;\n",
-        "    }\n",
-        "    div.output_subarea.output_text.output_pyout {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    div.output_subarea.output_stream.output_stdout.output_text {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    code{\n",
-        "      font-size: 70%;\n",
-        "    }\n",
-        "    .rendered_html code{\n",
-        "    background-color: transparent;\n",
-        "    }\n",
-        "    ul{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li li{\n",
-        "        padding-left: 0.2em; \n",
-        "        margin-bottom: 0.2em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    ol{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ol li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    a:link{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:visited{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:hover{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:focus{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:active{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    .rendered_html :link {\n",
-        "       text-decoration: underline; \n",
-        "    }\n",
-        "    .rendered_html :hover {\n",
-        "       text-decoration: none; \n",
-        "    }\n",
-        "    .rendered_html :visited {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :focus {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :active {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .warning{\n",
-        "        color: rgb( 240, 20, 20 )\n",
-        "    } \n",
-        "    hr {\n",
-        "      color: #f3f3f3;\n",
-        "      background-color: #f3f3f3;\n",
-        "      height: 1px;\n",
-        "    }\n",
-        "    blockquote{\n",
-        "      display:block;\n",
-        "      background: #fcfcfc;\n",
-        "      border-left: 5px solid #c76c0c;\n",
-        "      font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "      width:680px;\n",
-        "      padding: 10px 10px 10px 10px;\n",
-        "      text-align:justify;\n",
-        "      text-justify:inter-word;\n",
-        "      }\n",
-        "      blockquote p {\n",
-        "        margin-bottom: 0;\n",
-        "        line-height: 125%;\n",
-        "        font-size: 100%;\n",
-        "      }\n",
-        "</style>\n",
-        "<script>\n",
-        "    MathJax.Hub.Config({\n",
-        "                        TeX: {\n",
-        "                           extensions: [\"AMSmath.js\"]\n",
-        "                           },\n",
-        "                tex2jax: {\n",
-        "                    inlineMath: [ ['$','$'], [\"\\\\(\",\"\\\\)\"] ],\n",
-        "                    displayMath: [ ['$$','$$'], [\"\\\\[\",\"\\\\]\"] ]\n",
-        "                },\n",
-        "                displayAlign: 'center', // Change this to 'center' to center equations.\n",
-        "                \"HTML-CSS\": {\n",
-        "                    styles: {'.MathJax_Display': {\"margin\": 4}}\n",
-        "                }\n",
-        "        });\n",
-        "</script>\n"
+        "    \n",
+        "  }\n",
+        "  \n",
+        "}\n",
+        "\n",
+        "number_sections();\n",
+        "\n",
+        "// $([IPython.evnts]).on('create.Cell', number_sections);\n",
+        "\n",
+        "$([IPython.events]).on('selected_cell_type_changed.Notebook', number_sections);\n",
+        "\n"
        ],
        "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 1,
-       "text": [
-        "<IPython.core.display.HTML at 0x2904910>"
-       ]
+       "output_type": "display_data"
       }
      ],
      "prompt_number": 1
@@ -544,4 +418,4 @@
    "metadata": {}
   }
  ]
-}
+}

Gaussians.ipynb

@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:0ed2a79c9b9a5af478fd7349a380e31cad560037d74dc59e4deeb96893227198"
+  "signature": "sha256:d156d193bfb418b2b1abcbaa1a819c9a4e429e43842b4ecfaccb12444ce39e88"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -25,227 +25,101 @@
       "from __future__ import division, print_function\n",
       "import matplotlib.pyplot as plt\n",
       "import book_format\n",
-      "book_format.load_style()"
+      "book_format.load_style()\n",
+      "%install_ext https://raw.github.com/dpsanders/ipython_extensions/master/section_numbering/secnum.py\n",
+      "%load_ext secnum\n",
+      "%secnum"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
-       "html": [
-        "<style>\n",
-        "    div.cell{\n",
-        "        width: 850px;\n",
-        "        margin-left: 0% !important;\n",
-        "        margin-right: auto;\n",
-        "    }\n",
-        "    div.text_cell code {\n",
-        "        background: #F6F6F9;\n",
-        "        color: #0000FF;\n",
-        "   }\n",
-        "    h1 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "\t}\n",
-        "\t\n",
-        "    div.input_area {\n",
-        "        background: #F6F6F9;\n",
-        "        border: 1px solid #586e75;\n",
-        "    }\n",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Installed secnum.py. To use it, type:\n",
+        "  %load_ext secnum\n"
+       ]
+      },
+      {
+       "javascript": [
+        "console.log(\"Section numbering...\");\n",
         "\n",
-        "    .text_cell_render h1 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 36pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1em;\n",
-        "        display: block;\n",
-        "        white-space: wrap;\n",
-        "    } \n",
-        "    h2 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "function number_sections(threshold) {\n",
+        "\n",
+        "  var h1_number = 0;\n",
+        "  var h2_number = 0;\n",
+        "\n",
+        "  if (threshold === undefined) {\n",
+        "    threshold = 2;  // does nothing so far\n",
+        "  }\n",
+        "\n",
+        "  var cells = IPython.notebook.get_cells();\n",
+        "  \n",
+        "  for (var i=0; i < cells.length; i++) {\n",
+        "\n",
+        "    var cell = cells[i];\n",
+        "    if (cell.cell_type !== 'heading') continue;\n",
+        "    \n",
+        "    var level = cell.level;\n",
+        "    if (level > threshold) continue;\n",
+        "    \n",
+        "    if (level === 1) {\n",
+        "        \n",
+        "        h1_number ++;\n",
+        "        var h1_element = cell.element.find('h1');\n",
+        "        var h1_html = h1_element.html();\n",
+        "        \n",
+        "        console.log(\"h1_html: \" + h1_html);\n",
+        "\n",
+        "        var patt = /^[0-9]+\\.\\s(.*)/;   // section number at start of string\n",
+        "        var title = h1_html.match(patt);  // just the title\n",
+        "\n",
+        "        if (title != null) {  \n",
+        "          h1_element.html(h1_number + \". \" + title[1]);\n",
+        "        }\n",
+        "        else {\n",
+        "          h1_element.html(h1_number + \". \" + h1_html);\n",
+        "        }\n",
+        "        \n",
+        "        h2_number = 0;\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h2 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 20pt;\n",
-        "        font-style: italic;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 1.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    } \n",
-        "    h3 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "    \n",
+        "    if (level === 2) {\n",
+        "    \n",
+        "        h2_number ++;\n",
+        "        \n",
+        "        var h2_element = cell.element.find('h2');\n",
+        "        var h2_html = h2_element.html();\n",
+        "\n",
+        "        console.log(\"h2_html: \" + h2_html);\n",
+        "\n",
+        "        \n",
+        "        var patt = /^[0-9]+\\.[0-9]+\\.\\s/;\n",
+        "        var result = h2_html.match(patt);\n",
+        "\n",
+        "        if (result != null) {\n",
+        "          h2_html = h2_html.replace(result, \"\");\n",
+        "        }\n",
+        "\n",
+        "        h2_element.html(h1_number + \".\" + h2_number + \". \" + h2_html);\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h3 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 18pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 2em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h4 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h4 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 16pt;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h5 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h5 {\n",
-        "        font-weight: 300;\n",
-        "        font-style: normal;\n",
-        "        color: #1d3b84;\n",
-        "        font-size: 16pt;\n",
-        "        margin-bottom: 0em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    div.text_cell_render{\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "        line-height: 135%;\n",
-        "        font-size: 125%;\n",
-        "        width:750px;\n",
-        "        margin-left:auto;\n",
-        "        margin-right:auto;\n",
-        "        text-align:justify;\n",
-        "        text-justify:inter-word;\n",
-        "    }\n",
-        "    div.output_subarea.output_text.output_pyout {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    div.output_subarea.output_stream.output_stdout.output_text {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    code{\n",
-        "      font-size: 70%;\n",
-        "    }\n",
-        "    .rendered_html code{\n",
-        "    background-color: transparent;\n",
-        "    }\n",
-        "    ul{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li li{\n",
-        "        padding-left: 0.2em; \n",
-        "        margin-bottom: 0.2em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    ol{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ol li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    a:link{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:visited{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:hover{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:focus{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:active{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    .rendered_html :link {\n",
-        "       text-decoration: underline; \n",
-        "    }\n",
-        "    .rendered_html :hover {\n",
-        "       text-decoration: none; \n",
-        "    }\n",
-        "    .rendered_html :visited {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :focus {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :active {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .warning{\n",
-        "        color: rgb( 240, 20, 20 )\n",
-        "    } \n",
-        "    hr {\n",
-        "      color: #f3f3f3;\n",
-        "      background-color: #f3f3f3;\n",
-        "      height: 1px;\n",
-        "    }\n",
-        "    blockquote{\n",
-        "      display:block;\n",
-        "      background: #fcfcfc;\n",
-        "      border-left: 5px solid #c76c0c;\n",
-        "      font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "      width:680px;\n",
-        "      padding: 10px 10px 10px 10px;\n",
-        "      text-align:justify;\n",
-        "      text-justify:inter-word;\n",
-        "      }\n",
-        "      blockquote p {\n",
-        "        margin-bottom: 0;\n",
-        "        line-height: 125%;\n",
-        "        font-size: 100%;\n",
-        "      }\n",
-        "</style>\n",
-        "<script>\n",
-        "    MathJax.Hub.Config({\n",
-        "                        TeX: {\n",
-        "                           extensions: [\"AMSmath.js\"]\n",
-        "                           },\n",
-        "                tex2jax: {\n",
-        "                    inlineMath: [ ['$','$'], [\"\\\\(\",\"\\\\)\"] ],\n",
-        "                    displayMath: [ ['$$','$$'], [\"\\\\[\",\"\\\\]\"] ]\n",
-        "                },\n",
-        "                displayAlign: 'center', // Change this to 'center' to center equations.\n",
-        "                \"HTML-CSS\": {\n",
-        "                    styles: {'.MathJax_Display': {\"margin\": 4}}\n",
-        "                }\n",
-        "        });\n",
-        "</script>\n"
+        "    \n",
+        "  }\n",
+        "  \n",
+        "}\n",
+        "\n",
+        "number_sections();\n",
+        "\n",
+        "// $([IPython.evnts]).on('create.Cell', number_sections);\n",
+        "\n",
+        "$([IPython.events]).on('selected_cell_type_changed.Notebook', number_sections);\n",
+        "\n"
        ],
        "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 1,
-       "text": [
-        "<IPython.core.display.HTML at 0x1080350>"
-       ]
+       "output_type": "display_data"
       }
      ],
      "prompt_number": 1

Kalman_Filter_Math.ipynb

@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:f158f09893aa87588564de2be08ea1c524a480e55505bd5055afe9cb4993d21b"
+  "signature": "sha256:c8c5ef2a9d75930ce887514f19e5ab0d95859f408b5bcf5d2547bb57b8d0ef6d"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -25,227 +25,101 @@
       "from __future__ import division, print_function\n",
       "import matplotlib.pyplot as plt\n",
       "import book_format\n",
-      "book_format.load_style()"
+      "book_format.load_style()\n",
+      "%install_ext https://raw.github.com/dpsanders/ipython_extensions/master/section_numbering/secnum.py\n",
+      "%load_ext secnum\n",
+      "%secnum"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
-       "html": [
-        "<style>\n",
-        "    div.cell{\n",
-        "        width: 850px;\n",
-        "        margin-left: 0% !important;\n",
-        "        margin-right: auto;\n",
-        "    }\n",
-        "    div.text_cell code {\n",
-        "        background: #F6F6F9;\n",
-        "        color: #0000FF;\n",
-        "   }\n",
-        "    h1 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "\t}\n",
-        "\t\n",
-        "    div.input_area {\n",
-        "        background: #F6F6F9;\n",
-        "        border: 1px solid #586e75;\n",
-        "    }\n",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Installed secnum.py. To use it, type:\n",
+        "  %load_ext secnum\n"
+       ]
+      },
+      {
+       "javascript": [
+        "console.log(\"Section numbering...\");\n",
         "\n",
-        "    .text_cell_render h1 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 30pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1em;\n",
-        "        display: block;\n",
-        "        white-space: wrap;\n",
-        "    } \n",
-        "    h2 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "function number_sections(threshold) {\n",
+        "\n",
+        "  var h1_number = 0;\n",
+        "  var h2_number = 0;\n",
+        "\n",
+        "  if (threshold === undefined) {\n",
+        "    threshold = 2;  // does nothing so far\n",
+        "  }\n",
+        "\n",
+        "  var cells = IPython.notebook.get_cells();\n",
+        "  \n",
+        "  for (var i=0; i < cells.length; i++) {\n",
+        "\n",
+        "    var cell = cells[i];\n",
+        "    if (cell.cell_type !== 'heading') continue;\n",
+        "    \n",
+        "    var level = cell.level;\n",
+        "    if (level > threshold) continue;\n",
+        "    \n",
+        "    if (level === 1) {\n",
+        "        \n",
+        "        h1_number ++;\n",
+        "        var h1_element = cell.element.find('h1');\n",
+        "        var h1_html = h1_element.html();\n",
+        "        \n",
+        "        console.log(\"h1_html: \" + h1_html);\n",
+        "\n",
+        "        var patt = /^[0-9]+\\.\\s(.*)/;   // section number at start of string\n",
+        "        var title = h1_html.match(patt);  // just the title\n",
+        "\n",
+        "        if (title != null) {  \n",
+        "          h1_element.html(h1_number + \". \" + title[1]);\n",
+        "        }\n",
+        "        else {\n",
+        "          h1_element.html(h1_number + \". \" + h1_html);\n",
+        "        }\n",
+        "        \n",
+        "        h2_number = 0;\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h2 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 20pt;\n",
-        "        font-style: italic;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    } \n",
-        "    h3 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "    \n",
+        "    if (level === 2) {\n",
+        "    \n",
+        "        h2_number ++;\n",
+        "        \n",
+        "        var h2_element = cell.element.find('h2');\n",
+        "        var h2_html = h2_element.html();\n",
+        "\n",
+        "        console.log(\"h2_html: \" + h2_html);\n",
+        "\n",
+        "        \n",
+        "        var patt = /^[0-9]+\\.[0-9]+\\.\\s/;\n",
+        "        var result = h2_html.match(patt);\n",
+        "\n",
+        "        if (result != null) {\n",
+        "          h2_html = h2_html.replace(result, \"\");\n",
+        "        }\n",
+        "\n",
+        "        h2_element.html(h1_number + \".\" + h2_number + \". \" + h2_html);\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h3 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 18pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 2em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h4 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h4 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 16pt;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h5 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h5 {\n",
-        "        font-weight: 300;\n",
-        "        font-style: normal;\n",
-        "        color: #1d3b84;\n",
-        "        font-size: 16pt;\n",
-        "        margin-bottom: 0em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    div.text_cell_render{\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "        line-height: 135%;\n",
-        "        font-size: 110%;\n",
-        "        width:750px;\n",
-        "        margin-left:auto;\n",
-        "        margin-right:auto;\n",
-        "        text-align:justify;\n",
-        "        text-justify:inter-word;\n",
-        "    }\n",
-        "    div.output_subarea.output_text.output_pyout {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    div.output_subarea.output_stream.output_stdout.output_text {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    code{\n",
-        "      font-size: 70%;\n",
-        "    }\n",
-        "    .rendered_html code{\n",
-        "    background-color: transparent;\n",
-        "    }\n",
-        "    ul{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li li{\n",
-        "        padding-left: 0.2em; \n",
-        "        margin-bottom: 0.2em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    ol{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ol li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    a:link{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:visited{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:hover{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:focus{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:active{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    .rendered_html :link {\n",
-        "       text-decoration: underline; \n",
-        "    }\n",
-        "    .rendered_html :hover {\n",
-        "       text-decoration: none; \n",
-        "    }\n",
-        "    .rendered_html :visited {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :focus {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :active {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .warning{\n",
-        "        color: rgb( 240, 20, 20 )\n",
-        "    } \n",
-        "    hr {\n",
-        "      color: #f3f3f3;\n",
-        "      background-color: #f3f3f3;\n",
-        "      height: 1px;\n",
-        "    }\n",
-        "    blockquote{\n",
-        "      display:block;\n",
-        "      background: #fcfcfc;\n",
-        "      border-left: 5px solid #c76c0c;\n",
-        "      font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "      width:680px;\n",
-        "      padding: 10px 10px 10px 10px;\n",
-        "      text-align:justify;\n",
-        "      text-justify:inter-word;\n",
-        "      }\n",
-        "      blockquote p {\n",
-        "        margin-bottom: 0;\n",
-        "        line-height: 125%;\n",
-        "        font-size: 100%;\n",
-        "      }\n",
-        "</style>\n",
-        "<script>\n",
-        "    MathJax.Hub.Config({\n",
-        "                        TeX: {\n",
-        "                           extensions: [\"AMSmath.js\"]\n",
-        "                           },\n",
-        "                tex2jax: {\n",
-        "                    inlineMath: [ ['$','$'], [\"\\\\(\",\"\\\\)\"] ],\n",
-        "                    displayMath: [ ['$$','$$'], [\"\\\\[\",\"\\\\]\"] ]\n",
-        "                },\n",
-        "                displayAlign: 'center', // Change this to 'center' to center equations.\n",
-        "                \"HTML-CSS\": {\n",
-        "                    styles: {'.MathJax_Display': {\"margin\": 4}}\n",
-        "                }\n",
-        "        });\n",
-        "</script>\n"
+        "    \n",
+        "  }\n",
+        "  \n",
+        "}\n",
+        "\n",
+        "number_sections();\n",
+        "\n",
+        "// $([IPython.evnts]).on('create.Cell', number_sections);\n",
+        "\n",
+        "$([IPython.events]).on('selected_cell_type_changed.Notebook', number_sections);\n",
+        "\n"
        ],
        "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 1,
-       "text": [
-        "<IPython.core.display.HTML at 0x14fac90>"
-       ]
+       "output_type": "display_data"
       }
      ],
      "prompt_number": 1

Multidimensional_Kalman_Filters.ipynb

@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:472320d5c3e0702f2a18addf88f006b5f5a19a3f51784050f9346806d2cc46b3"
+  "signature": "sha256:9de522896a31234c5502f9ba39e27ca8fe00b307764f4a503b6b7ca27476e2b3"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -25,227 +25,101 @@
       "from __future__ import division, print_function\n",
       "import matplotlib.pyplot as plt\n",
       "import book_format\n",
-      "book_format.load_style()"
+      "book_format.load_style()\n",
+      "%install_ext https://raw.github.com/dpsanders/ipython_extensions/master/section_numbering/secnum.py\n",
+      "%load_ext secnum\n",
+      "%secnum"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
-       "html": [
-        "<style>\n",
-        "    div.cell{\n",
-        "        width: 850px;\n",
-        "        margin-left: 0% !important;\n",
-        "        margin-right: auto;\n",
-        "    }\n",
-        "    div.text_cell code {\n",
-        "        background: #F6F6F9;\n",
-        "        color: #0000FF;\n",
-        "   }\n",
-        "    h1 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "\t}\n",
-        "\t\n",
-        "    div.input_area {\n",
-        "        background: #F6F6F9;\n",
-        "        border: 1px solid #586e75;\n",
-        "    }\n",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Installed secnum.py. To use it, type:\n",
+        "  %load_ext secnum\n"
+       ]
+      },
+      {
+       "javascript": [
+        "console.log(\"Section numbering...\");\n",
         "\n",
-        "    .text_cell_render h1 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 30pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1em;\n",
-        "        display: block;\n",
-        "        white-space: wrap;\n",
-        "    } \n",
-        "    h2 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "function number_sections(threshold) {\n",
+        "\n",
+        "  var h1_number = 0;\n",
+        "  var h2_number = 0;\n",
+        "\n",
+        "  if (threshold === undefined) {\n",
+        "    threshold = 2;  // does nothing so far\n",
+        "  }\n",
+        "\n",
+        "  var cells = IPython.notebook.get_cells();\n",
+        "  \n",
+        "  for (var i=0; i < cells.length; i++) {\n",
+        "\n",
+        "    var cell = cells[i];\n",
+        "    if (cell.cell_type !== 'heading') continue;\n",
+        "    \n",
+        "    var level = cell.level;\n",
+        "    if (level > threshold) continue;\n",
+        "    \n",
+        "    if (level === 1) {\n",
+        "        \n",
+        "        h1_number ++;\n",
+        "        var h1_element = cell.element.find('h1');\n",
+        "        var h1_html = h1_element.html();\n",
+        "        \n",
+        "        console.log(\"h1_html: \" + h1_html);\n",
+        "\n",
+        "        var patt = /^[0-9]+\\.\\s(.*)/;   // section number at start of string\n",
+        "        var title = h1_html.match(patt);  // just the title\n",
+        "\n",
+        "        if (title != null) {  \n",
+        "          h1_element.html(h1_number + \". \" + title[1]);\n",
+        "        }\n",
+        "        else {\n",
+        "          h1_element.html(h1_number + \". \" + h1_html);\n",
+        "        }\n",
+        "        \n",
+        "        h2_number = 0;\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h2 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 20pt;\n",
-        "        font-style: italic;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    } \n",
-        "    h3 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "    \n",
+        "    if (level === 2) {\n",
+        "    \n",
+        "        h2_number ++;\n",
+        "        \n",
+        "        var h2_element = cell.element.find('h2');\n",
+        "        var h2_html = h2_element.html();\n",
+        "\n",
+        "        console.log(\"h2_html: \" + h2_html);\n",
+        "\n",
+        "        \n",
+        "        var patt = /^[0-9]+\\.[0-9]+\\.\\s/;\n",
+        "        var result = h2_html.match(patt);\n",
+        "\n",
+        "        if (result != null) {\n",
+        "          h2_html = h2_html.replace(result, \"\");\n",
+        "        }\n",
+        "\n",
+        "        h2_element.html(h1_number + \".\" + h2_number + \". \" + h2_html);\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h3 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 18pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 2em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h4 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h4 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 16pt;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h5 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h5 {\n",
-        "        font-weight: 300;\n",
-        "        font-style: normal;\n",
-        "        color: #1d3b84;\n",
-        "        font-size: 16pt;\n",
-        "        margin-bottom: 0em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    div.text_cell_render{\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "        line-height: 135%;\n",
-        "        font-size: 110%;\n",
-        "        width:750px;\n",
-        "        margin-left:auto;\n",
-        "        margin-right:auto;\n",
-        "        text-align:justify;\n",
-        "        text-justify:inter-word;\n",
-        "    }\n",
-        "    div.output_subarea.output_text.output_pyout {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    div.output_subarea.output_stream.output_stdout.output_text {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    code{\n",
-        "      font-size: 70%;\n",
-        "    }\n",
-        "    .rendered_html code{\n",
-        "    background-color: transparent;\n",
-        "    }\n",
-        "    ul{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li li{\n",
-        "        padding-left: 0.2em; \n",
-        "        margin-bottom: 0.2em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    ol{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ol li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    a:link{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:visited{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:hover{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:focus{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:active{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    .rendered_html :link {\n",
-        "       text-decoration: underline; \n",
-        "    }\n",
-        "    .rendered_html :hover {\n",
-        "       text-decoration: none; \n",
-        "    }\n",
-        "    .rendered_html :visited {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :focus {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :active {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .warning{\n",
-        "        color: rgb( 240, 20, 20 )\n",
-        "    } \n",
-        "    hr {\n",
-        "      color: #f3f3f3;\n",
-        "      background-color: #f3f3f3;\n",
-        "      height: 1px;\n",
-        "    }\n",
-        "    blockquote{\n",
-        "      display:block;\n",
-        "      background: #fcfcfc;\n",
-        "      border-left: 5px solid #c76c0c;\n",
-        "      font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "      width:680px;\n",
-        "      padding: 10px 10px 10px 10px;\n",
-        "      text-align:justify;\n",
-        "      text-justify:inter-word;\n",
-        "      }\n",
-        "      blockquote p {\n",
-        "        margin-bottom: 0;\n",
-        "        line-height: 125%;\n",
-        "        font-size: 100%;\n",
-        "      }\n",
-        "</style>\n",
-        "<script>\n",
-        "    MathJax.Hub.Config({\n",
-        "                        TeX: {\n",
-        "                           extensions: [\"AMSmath.js\"]\n",
-        "                           },\n",
-        "                tex2jax: {\n",
-        "                    inlineMath: [ ['$','$'], [\"\\\\(\",\"\\\\)\"] ],\n",
-        "                    displayMath: [ ['$$','$$'], [\"\\\\[\",\"\\\\]\"] ]\n",
-        "                },\n",
-        "                displayAlign: 'center', // Change this to 'center' to center equations.\n",
-        "                \"HTML-CSS\": {\n",
-        "                    styles: {'.MathJax_Display': {\"margin\": 4}}\n",
-        "                }\n",
-        "        });\n",
-        "</script>\n"
+        "    \n",
+        "  }\n",
+        "  \n",
+        "}\n",
+        "\n",
+        "number_sections();\n",
+        "\n",
+        "// $([IPython.evnts]).on('create.Cell', number_sections);\n",
+        "\n",
+        "$([IPython.events]).on('selected_cell_type_changed.Notebook', number_sections);\n",
+        "\n"
        ],
        "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 1,
-       "text": [
-        "<IPython.core.display.HTML at 0x112cb50>"
-       ]
+       "output_type": "display_data"
       }
      ],
      "prompt_number": 1

Preface.ipynb

@@ -13,8 +13,121 @@
      "metadata": {},
      "source": [
       "<center><h1>Kalman and Bayesian Filters in Python</h1></center>\n",
-      "<center><a href =\"http://nbviewer.ipython.org/urls/raw.github.com/rlabbe/Kalman-and-Bayesian-Filters-in-Python/master/toc.ipynb\">Table of Contents</a></center>\n",
-      "\n",
+      "<center><a href =\"http://nbviewer.ipython.org/urls/raw.github.com/rlabbe/Kalman-and-Bayesian-Filters-in-Python/master/toc.ipynb\">Table of Contents</a></center>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#format the book\n",
+      "%matplotlib inline\n",
+      "from __future__ import division, print_function\n",
+      "import matplotlib.pyplot as plt\n",
+      "import book_format\n",
+      "book_format.load_style()\n",
+      "%install_ext https://raw.github.com/dpsanders/ipython_extensions/master/section_numbering/secnum.py\n",
+      "%load_ext secnum\n",
+      "%secnum"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Installed secnum.py. To use it, type:\n",
+        "  %load_ext secnum\n"
+       ]
+      },
+      {
+       "javascript": [
+        "console.log(\"Section numbering...\");\n",
+        "\n",
+        "function number_sections(threshold) {\n",
+        "\n",
+        "  var h1_number = 0;\n",
+        "  var h2_number = 0;\n",
+        "\n",
+        "  if (threshold === undefined) {\n",
+        "    threshold = 2;  // does nothing so far\n",
+        "  }\n",
+        "\n",
+        "  var cells = IPython.notebook.get_cells();\n",
+        "  \n",
+        "  for (var i=0; i < cells.length; i++) {\n",
+        "\n",
+        "    var cell = cells[i];\n",
+        "    if (cell.cell_type !== 'heading') continue;\n",
+        "    \n",
+        "    var level = cell.level;\n",
+        "    if (level > threshold) continue;\n",
+        "    \n",
+        "    if (level === 1) {\n",
+        "        \n",
+        "        h1_number ++;\n",
+        "        var h1_element = cell.element.find('h1');\n",
+        "        var h1_html = h1_element.html();\n",
+        "        \n",
+        "        console.log(\"h1_html: \" + h1_html);\n",
+        "\n",
+        "        var patt = /^[0-9]+\\.\\s(.*)/;   // section number at start of string\n",
+        "        var title = h1_html.match(patt);  // just the title\n",
+        "\n",
+        "        if (title != null) {  \n",
+        "          h1_element.html(h1_number + \". \" + title[1]);\n",
+        "        }\n",
+        "        else {\n",
+        "          h1_element.html(h1_number + \". \" + h1_html);\n",
+        "        }\n",
+        "        \n",
+        "        h2_number = 0;\n",
+        "        \n",
+        "    }\n",
+        "    \n",
+        "    if (level === 2) {\n",
+        "    \n",
+        "        h2_number ++;\n",
+        "        \n",
+        "        var h2_element = cell.element.find('h2');\n",
+        "        var h2_html = h2_element.html();\n",
+        "\n",
+        "        console.log(\"h2_html: \" + h2_html);\n",
+        "\n",
+        "        \n",
+        "        var patt = /^[0-9]+\\.[0-9]+\\.\\s/;\n",
+        "        var result = h2_html.match(patt);\n",
+        "\n",
+        "        if (result != null) {\n",
+        "          h2_html = h2_html.replace(result, \"\");\n",
+        "        }\n",
+        "\n",
+        "        h2_element.html(h1_number + \".\" + h2_number + \". \" + h2_html);\n",
+        "        \n",
+        "    }\n",
+        "    \n",
+        "  }\n",
+        "  \n",
+        "}\n",
+        "\n",
+        "number_sections();\n",
+        "\n",
+        "// $([IPython.evnts]).on('create.Cell', number_sections);\n",
+        "\n",
+        "$([IPython.events]).on('selected_cell_type_changed.Notebook', number_sections);\n",
+        "\n"
+       ],
+       "metadata": {},
+       "output_type": "display_data"
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
       "### Version 0.0\n",
       "\n",
       "Not ready for public consumption. In development."

Signals_and_Noise.ipynb

@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:b884811797e64562baf3c2f742fbb57d9857907b27eeb0885fa24fc3a524bb18"
+  "signature": "sha256:a99c80ee33c889d337e7c98906135c5be7203be21423375ba59d0399563d8508"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -25,227 +25,101 @@
       "from __future__ import division, print_function\n",
       "import matplotlib.pyplot as plt\n",
       "import book_format\n",
-      "book_format.load_style()"
+      "book_format.load_style()\n",
+      "%install_ext https://raw.github.com/dpsanders/ipython_extensions/master/section_numbering/secnum.py\n",
+      "%load_ext secnum\n",
+      "%secnum"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
-       "html": [
-        "<style>\n",
-        "    div.cell{\n",
-        "        width: 850px;\n",
-        "        margin-left: 0% !important;\n",
-        "        margin-right: auto;\n",
-        "    }\n",
-        "    div.text_cell code {\n",
-        "        background: #F6F6F9;\n",
-        "        color: #0000FF;\n",
-        "   }\n",
-        "    h1 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "\t}\n",
-        "\t\n",
-        "    div.input_area {\n",
-        "        background: #F6F6F9;\n",
-        "        border: 1px solid #586e75;\n",
-        "    }\n",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Installed secnum.py. To use it, type:\n",
+        "  %load_ext secnum\n"
+       ]
+      },
+      {
+       "javascript": [
+        "console.log(\"Section numbering...\");\n",
         "\n",
-        "    .text_cell_render h1 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 36pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1em;\n",
-        "        display: block;\n",
-        "        white-space: wrap;\n",
-        "    } \n",
-        "    h2 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "function number_sections(threshold) {\n",
+        "\n",
+        "  var h1_number = 0;\n",
+        "  var h2_number = 0;\n",
+        "\n",
+        "  if (threshold === undefined) {\n",
+        "    threshold = 2;  // does nothing so far\n",
+        "  }\n",
+        "\n",
+        "  var cells = IPython.notebook.get_cells();\n",
+        "  \n",
+        "  for (var i=0; i < cells.length; i++) {\n",
+        "\n",
+        "    var cell = cells[i];\n",
+        "    if (cell.cell_type !== 'heading') continue;\n",
+        "    \n",
+        "    var level = cell.level;\n",
+        "    if (level > threshold) continue;\n",
+        "    \n",
+        "    if (level === 1) {\n",
+        "        \n",
+        "        h1_number ++;\n",
+        "        var h1_element = cell.element.find('h1');\n",
+        "        var h1_html = h1_element.html();\n",
+        "        \n",
+        "        console.log(\"h1_html: \" + h1_html);\n",
+        "\n",
+        "        var patt = /^[0-9]+\\.\\s(.*)/;   // section number at start of string\n",
+        "        var title = h1_html.match(patt);  // just the title\n",
+        "\n",
+        "        if (title != null) {  \n",
+        "          h1_element.html(h1_number + \". \" + title[1]);\n",
+        "        }\n",
+        "        else {\n",
+        "          h1_element.html(h1_number + \". \" + h1_html);\n",
+        "        }\n",
+        "        \n",
+        "        h2_number = 0;\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h2 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 20pt;\n",
-        "        font-style: italic;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 1.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    } \n",
-        "    h3 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "    \n",
+        "    if (level === 2) {\n",
+        "    \n",
+        "        h2_number ++;\n",
+        "        \n",
+        "        var h2_element = cell.element.find('h2');\n",
+        "        var h2_html = h2_element.html();\n",
+        "\n",
+        "        console.log(\"h2_html: \" + h2_html);\n",
+        "\n",
+        "        \n",
+        "        var patt = /^[0-9]+\\.[0-9]+\\.\\s/;\n",
+        "        var result = h2_html.match(patt);\n",
+        "\n",
+        "        if (result != null) {\n",
+        "          h2_html = h2_html.replace(result, \"\");\n",
+        "        }\n",
+        "\n",
+        "        h2_element.html(h1_number + \".\" + h2_number + \". \" + h2_html);\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h3 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 18pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 2em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h4 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h4 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 16pt;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h5 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h5 {\n",
-        "        font-weight: 300;\n",
-        "        font-style: normal;\n",
-        "        color: #1d3b84;\n",
-        "        font-size: 16pt;\n",
-        "        margin-bottom: 0em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    div.text_cell_render{\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "        line-height: 135%;\n",
-        "        font-size: 125%;\n",
-        "        width:750px;\n",
-        "        margin-left:auto;\n",
-        "        margin-right:auto;\n",
-        "        text-align:justify;\n",
-        "        text-justify:inter-word;\n",
-        "    }\n",
-        "    div.output_subarea.output_text.output_pyout {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    div.output_subarea.output_stream.output_stdout.output_text {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    code{\n",
-        "      font-size: 70%;\n",
-        "    }\n",
-        "    .rendered_html code{\n",
-        "    background-color: transparent;\n",
-        "    }\n",
-        "    ul{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li li{\n",
-        "        padding-left: 0.2em; \n",
-        "        margin-bottom: 0.2em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    ol{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ol li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    a:link{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:visited{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:hover{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:focus{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:active{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    .rendered_html :link {\n",
-        "       text-decoration: underline; \n",
-        "    }\n",
-        "    .rendered_html :hover {\n",
-        "       text-decoration: none; \n",
-        "    }\n",
-        "    .rendered_html :visited {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :focus {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :active {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .warning{\n",
-        "        color: rgb( 240, 20, 20 )\n",
-        "    } \n",
-        "    hr {\n",
-        "      color: #f3f3f3;\n",
-        "      background-color: #f3f3f3;\n",
-        "      height: 1px;\n",
-        "    }\n",
-        "    blockquote{\n",
-        "      display:block;\n",
-        "      background: #fcfcfc;\n",
-        "      border-left: 5px solid #c76c0c;\n",
-        "      font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "      width:680px;\n",
-        "      padding: 10px 10px 10px 10px;\n",
-        "      text-align:justify;\n",
-        "      text-justify:inter-word;\n",
-        "      }\n",
-        "      blockquote p {\n",
-        "        margin-bottom: 0;\n",
-        "        line-height: 125%;\n",
-        "        font-size: 100%;\n",
-        "      }\n",
-        "</style>\n",
-        "<script>\n",
-        "    MathJax.Hub.Config({\n",
-        "                        TeX: {\n",
-        "                           extensions: [\"AMSmath.js\"]\n",
-        "                           },\n",
-        "                tex2jax: {\n",
-        "                    inlineMath: [ ['$','$'], [\"\\\\(\",\"\\\\)\"] ],\n",
-        "                    displayMath: [ ['$$','$$'], [\"\\\\[\",\"\\\\]\"] ]\n",
-        "                },\n",
-        "                displayAlign: 'center', // Change this to 'center' to center equations.\n",
-        "                \"HTML-CSS\": {\n",
-        "                    styles: {'.MathJax_Display': {\"margin\": 4}}\n",
-        "                }\n",
-        "        });\n",
-        "</script>\n"
+        "    \n",
+        "  }\n",
+        "  \n",
+        "}\n",
+        "\n",
+        "number_sections();\n",
+        "\n",
+        "// $([IPython.evnts]).on('create.Cell', number_sections);\n",
+        "\n",
+        "$([IPython.events]).on('selected_cell_type_changed.Notebook', number_sections);\n",
+        "\n"
        ],
        "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 1,
-       "text": [
-        "<IPython.core.display.HTML at 0x10e5990>"
-       ]
+       "output_type": "display_data"
       }
      ],
      "prompt_number": 1

Unscented_Kalman_Filter.ipynb

@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:6f9ef48b22782824d2e9169118d616cce66aaf1365292e761e4d3ecfb022703b"
+  "signature": "sha256:66c26b5f12522984f5c0f4f1f89c03cd62b201e37c170c063437cb122ac1b054"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -25,227 +25,101 @@
       "from __future__ import division, print_function\n",
       "import matplotlib.pyplot as plt\n",
       "import book_format\n",
-      "book_format.load_style()"
+      "book_format.load_style()\n",
+      "%install_ext https://raw.github.com/dpsanders/ipython_extensions/master/section_numbering/secnum.py\n",
+      "%load_ext secnum\n",
+      "%secnum"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
-       "html": [
-        "<style>\n",
-        "    div.cell{\n",
-        "        width: 850px;\n",
-        "        margin-left: 0% !important;\n",
-        "        margin-right: auto;\n",
-        "    }\n",
-        "    div.text_cell code {\n",
-        "        background: #F6F6F9;\n",
-        "        color: #0000FF;\n",
-        "   }\n",
-        "    h1 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "\t}\n",
-        "\t\n",
-        "    div.input_area {\n",
-        "        background: #F6F6F9;\n",
-        "        border: 1px solid #586e75;\n",
-        "    }\n",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Installed secnum.py. To use it, type:\n",
+        "  %load_ext secnum\n"
+       ]
+      },
+      {
+       "javascript": [
+        "console.log(\"Section numbering...\");\n",
         "\n",
-        "    .text_cell_render h1 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 30pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1em;\n",
-        "        display: block;\n",
-        "        white-space: wrap;\n",
-        "    } \n",
-        "    h2 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "function number_sections(threshold) {\n",
+        "\n",
+        "  var h1_number = 0;\n",
+        "  var h2_number = 0;\n",
+        "\n",
+        "  if (threshold === undefined) {\n",
+        "    threshold = 2;  // does nothing so far\n",
+        "  }\n",
+        "\n",
+        "  var cells = IPython.notebook.get_cells();\n",
+        "  \n",
+        "  for (var i=0; i < cells.length; i++) {\n",
+        "\n",
+        "    var cell = cells[i];\n",
+        "    if (cell.cell_type !== 'heading') continue;\n",
+        "    \n",
+        "    var level = cell.level;\n",
+        "    if (level > threshold) continue;\n",
+        "    \n",
+        "    if (level === 1) {\n",
+        "        \n",
+        "        h1_number ++;\n",
+        "        var h1_element = cell.element.find('h1');\n",
+        "        var h1_html = h1_element.html();\n",
+        "        \n",
+        "        console.log(\"h1_html: \" + h1_html);\n",
+        "\n",
+        "        var patt = /^[0-9]+\\.\\s(.*)/;   // section number at start of string\n",
+        "        var title = h1_html.match(patt);  // just the title\n",
+        "\n",
+        "        if (title != null) {  \n",
+        "          h1_element.html(h1_number + \". \" + title[1]);\n",
+        "        }\n",
+        "        else {\n",
+        "          h1_element.html(h1_number + \". \" + h1_html);\n",
+        "        }\n",
+        "        \n",
+        "        h2_number = 0;\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h2 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 20pt;\n",
-        "        font-style: italic;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    } \n",
-        "    h3 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "    \n",
+        "    if (level === 2) {\n",
+        "    \n",
+        "        h2_number ++;\n",
+        "        \n",
+        "        var h2_element = cell.element.find('h2');\n",
+        "        var h2_html = h2_element.html();\n",
+        "\n",
+        "        console.log(\"h2_html: \" + h2_html);\n",
+        "\n",
+        "        \n",
+        "        var patt = /^[0-9]+\\.[0-9]+\\.\\s/;\n",
+        "        var result = h2_html.match(patt);\n",
+        "\n",
+        "        if (result != null) {\n",
+        "          h2_html = h2_html.replace(result, \"\");\n",
+        "        }\n",
+        "\n",
+        "        h2_element.html(h1_number + \".\" + h2_number + \". \" + h2_html);\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h3 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 18pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 2em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h4 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h4 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 16pt;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h5 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h5 {\n",
-        "        font-weight: 300;\n",
-        "        font-style: normal;\n",
-        "        color: #1d3b84;\n",
-        "        font-size: 16pt;\n",
-        "        margin-bottom: 0em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    div.text_cell_render{\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "        line-height: 135%;\n",
-        "        font-size: 125%;\n",
-        "        width:750px;\n",
-        "        margin-left:auto;\n",
-        "        margin-right:auto;\n",
-        "        text-align:justify;\n",
-        "        text-justify:inter-word;\n",
-        "    }\n",
-        "    div.output_subarea.output_text.output_pyout {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    div.output_subarea.output_stream.output_stdout.output_text {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    code{\n",
-        "      font-size: 70%;\n",
-        "    }\n",
-        "    .rendered_html code{\n",
-        "    background-color: transparent;\n",
-        "    }\n",
-        "    ul{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li li{\n",
-        "        padding-left: 0.2em; \n",
-        "        margin-bottom: 0.2em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    ol{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ol li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    a:link{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:visited{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:hover{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:focus{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:active{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    .rendered_html :link {\n",
-        "       text-decoration: underline; \n",
-        "    }\n",
-        "    .rendered_html :hover {\n",
-        "       text-decoration: none; \n",
-        "    }\n",
-        "    .rendered_html :visited {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :focus {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :active {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .warning{\n",
-        "        color: rgb( 240, 20, 20 )\n",
-        "    } \n",
-        "    hr {\n",
-        "      color: #f3f3f3;\n",
-        "      background-color: #f3f3f3;\n",
-        "      height: 1px;\n",
-        "    }\n",
-        "    blockquote{\n",
-        "      display:block;\n",
-        "      background: #fcfcfc;\n",
-        "      border-left: 5px solid #c76c0c;\n",
-        "      font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "      width:680px;\n",
-        "      padding: 10px 10px 10px 10px;\n",
-        "      text-align:justify;\n",
-        "      text-justify:inter-word;\n",
-        "      }\n",
-        "      blockquote p {\n",
-        "        margin-bottom: 0;\n",
-        "        line-height: 125%;\n",
-        "        font-size: 100%;\n",
-        "      }\n",
-        "</style>\n",
-        "<script>\n",
-        "    MathJax.Hub.Config({\n",
-        "                        TeX: {\n",
-        "                           extensions: [\"AMSmath.js\"]\n",
-        "                           },\n",
-        "                tex2jax: {\n",
-        "                    inlineMath: [ ['$','$'], [\"\\\\(\",\"\\\\)\"] ],\n",
-        "                    displayMath: [ ['$$','$$'], [\"\\\\[\",\"\\\\]\"] ]\n",
-        "                },\n",
-        "                displayAlign: 'center', // Change this to 'center' to center equations.\n",
-        "                \"HTML-CSS\": {\n",
-        "                    styles: {'.MathJax_Display': {\"margin\": 4}}\n",
-        "                }\n",
-        "        });\n",
-        "</script>\n"
+        "    \n",
+        "  }\n",
+        "  \n",
+        "}\n",
+        "\n",
+        "number_sections();\n",
+        "\n",
+        "// $([IPython.evnts]).on('create.Cell', number_sections);\n",
+        "\n",
+        "$([IPython.events]).on('selected_cell_type_changed.Notebook', number_sections);\n",
+        "\n"
        ],
        "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 1,
-       "text": [
-        "<IPython.core.display.HTML at 0xece990>"
-       ]
+       "output_type": "display_data"
       }
      ],
      "prompt_number": 1

Untitled0.ipynb

@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:5c99106a58fdfec14e71afe805a522f7a3f434845e28ce911f0640049674ed28"
+  "signature": "sha256:842d8c88675001eadf27bb53d68b649129f5e3c560cf8b43ccfab1ceb5f93bec"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -17,230 +17,105 @@
       "from __future__ import division, print_function\n",
       "import matplotlib.pyplot as plt\n",
       "import book_format\n",
-      "book_format.load_style()"
+      "book_format.load_style()\n",
+      "%install_ext https://raw.github.com/dpsanders/ipython_extensions/master/section_numbering/secnum.py\n",
+      "%load_ext secnum\n",
+      "%secnum"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
-       "html": [
-        "<style>\n",
-        "    div.cell{\n",
-        "        width: 850px;\n",
-        "        margin-left: 0% !important;\n",
-        "        margin-right: auto;\n",
-        "    }\n",
-        "    div.text_cell code {\n",
-        "        background: #F6F6F9;\n",
-        "        color: #0000FF;\n",
-        "   }\n",
-        "    h1 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "\t}\n",
-        "\t\n",
-        "    div.input_area {\n",
-        "        background: #F6F6F9;\n",
-        "        border: 1px solid #586e75;\n",
-        "    }\n",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Installed secnum.py. To use it, type:\n",
+        "  %load_ext secnum\n",
+        "Downloading https://raw.github.com/dpsanders/ipython_extensions/master/section_numbering/secnum.js to /home/rlabbe/.ipython/extensions/secnum.js\n"
+       ]
+      },
+      {
+       "javascript": [
+        "console.log(\"Section numbering...\");\n",
         "\n",
-        "    .text_cell_render h1 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 36pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1em;\n",
-        "        display: block;\n",
-        "        white-space: wrap;\n",
-        "    } \n",
-        "    h2 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "function number_sections(threshold) {\n",
+        "\n",
+        "  var h1_number = 0;\n",
+        "  var h2_number = 0;\n",
+        "\n",
+        "  if (threshold === undefined) {\n",
+        "    threshold = 2;  // does nothing so far\n",
+        "  }\n",
+        "\n",
+        "  var cells = IPython.notebook.get_cells();\n",
+        "  \n",
+        "  for (var i=0; i < cells.length; i++) {\n",
+        "\n",
+        "    var cell = cells[i];\n",
+        "    if (cell.cell_type !== 'heading') continue;\n",
+        "    \n",
+        "    var level = cell.level;\n",
+        "    if (level > threshold) continue;\n",
+        "    \n",
+        "    if (level === 1) {\n",
+        "        \n",
+        "        h1_number ++;\n",
+        "        var h1_element = cell.element.find('h1');\n",
+        "        var h1_html = h1_element.html();\n",
+        "        \n",
+        "        console.log(\"h1_html: \" + h1_html);\n",
+        "\n",
+        "        var patt = /^[0-9]+\\.\\s(.*)/;   // section number at start of string\n",
+        "        var title = h1_html.match(patt);  // just the title\n",
+        "\n",
+        "        if (title != null) {  \n",
+        "          h1_element.html(h1_number + \". \" + title[1]);\n",
+        "        }\n",
+        "        else {\n",
+        "          h1_element.html(h1_number + \". \" + h1_html);\n",
+        "        }\n",
+        "        \n",
+        "        h2_number = 0;\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h2 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 20pt;\n",
-        "        font-style: italic;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 1.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    } \n",
-        "    h3 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "    \n",
+        "    if (level === 2) {\n",
+        "    \n",
+        "        h2_number ++;\n",
+        "        \n",
+        "        var h2_element = cell.element.find('h2');\n",
+        "        var h2_html = h2_element.html();\n",
+        "\n",
+        "        console.log(\"h2_html: \" + h2_html);\n",
+        "\n",
+        "        \n",
+        "        var patt = /^[0-9]+\\.[0-9]+\\.\\s/;\n",
+        "        var result = h2_html.match(patt);\n",
+        "\n",
+        "        if (result != null) {\n",
+        "          h2_html = h2_html.replace(result, \"\");\n",
+        "        }\n",
+        "\n",
+        "        h2_element.html(h1_number + \".\" + h2_number + \". \" + h2_html);\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h3 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 18pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 2em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h4 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h4 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 16pt;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h5 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h5 {\n",
-        "        font-weight: 300;\n",
-        "        font-style: normal;\n",
-        "        color: #1d3b84;\n",
-        "        font-size: 16pt;\n",
-        "        margin-bottom: 0em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    div.text_cell_render{\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "        line-height: 135%;\n",
-        "        font-size: 125%;\n",
-        "        width:750px;\n",
-        "        margin-left:auto;\n",
-        "        margin-right:auto;\n",
-        "        text-align:justify;\n",
-        "        text-justify:inter-word;\n",
-        "    }\n",
-        "    div.output_subarea.output_text.output_pyout {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    div.output_subarea.output_stream.output_stdout.output_text {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    code{\n",
-        "      font-size: 70%;\n",
-        "    }\n",
-        "    .rendered_html code{\n",
-        "    background-color: transparent;\n",
-        "    }\n",
-        "    ul{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li li{\n",
-        "        padding-left: 0.2em; \n",
-        "        margin-bottom: 0.2em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    ol{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ol li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    a:link{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:visited{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:hover{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:focus{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:active{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    .rendered_html :link {\n",
-        "       text-decoration: underline; \n",
-        "    }\n",
-        "    .rendered_html :hover {\n",
-        "       text-decoration: none; \n",
-        "    }\n",
-        "    .rendered_html :visited {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :focus {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :active {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .warning{\n",
-        "        color: rgb( 240, 20, 20 )\n",
-        "    } \n",
-        "    hr {\n",
-        "      color: #f3f3f3;\n",
-        "      background-color: #f3f3f3;\n",
-        "      height: 1px;\n",
-        "    }\n",
-        "    blockquote{\n",
-        "      display:block;\n",
-        "      background: #fcfcfc;\n",
-        "      border-left: 5px solid #c76c0c;\n",
-        "      font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "      width:680px;\n",
-        "      padding: 10px 10px 10px 10px;\n",
-        "      text-align:justify;\n",
-        "      text-justify:inter-word;\n",
-        "      }\n",
-        "      blockquote p {\n",
-        "        margin-bottom: 0;\n",
-        "        line-height: 125%;\n",
-        "        font-size: 100%;\n",
-        "      }\n",
-        "</style>\n",
-        "<script>\n",
-        "    MathJax.Hub.Config({\n",
-        "                        TeX: {\n",
-        "                           extensions: [\"AMSmath.js\"]\n",
-        "                           },\n",
-        "                tex2jax: {\n",
-        "                    inlineMath: [ ['$','$'], [\"\\\\(\",\"\\\\)\"] ],\n",
-        "                    displayMath: [ ['$$','$$'], [\"\\\\[\",\"\\\\]\"] ]\n",
-        "                },\n",
-        "                displayAlign: 'center', // Change this to 'center' to center equations.\n",
-        "                \"HTML-CSS\": {\n",
-        "                    styles: {'.MathJax_Display': {\"margin\": 4}}\n",
-        "                }\n",
-        "        });\n",
-        "</script>\n"
+        "    \n",
+        "  }\n",
+        "  \n",
+        "}\n",
+        "\n",
+        "number_sections();\n",
+        "\n",
+        "// $([IPython.evnts]).on('create.Cell', number_sections);\n",
+        "\n",
+        "$([IPython.events]).on('selected_cell_type_changed.Notebook', number_sections);\n",
+        "\n"
        ],
        "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 1,
-       "text": [
-        "<IPython.core.display.HTML at 0x1e2f910>"
-       ]
+       "output_type": "display_data"
       }
      ],
-     "prompt_number": 1
+     "prompt_number": 22
     },
     {
      "cell_type": "heading",
@@ -262,16 +137,18 @@
      "metadata": {},
      "source": []
     },
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "One"
+     ]
+    },
     {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "test\n",
-      "-\n",
-      "\n",
-      "testtwp\n",
-      "--\n",
-      "\n",
       "\n",
       "# One\n",
       ">this is a big test asdf asdf asd fasd fasd;fj sadf;lkjas df;kasdj f;lasdkfj asd;lkfj asd;lkfj asd;lfkja sdf;ojasd f;lkasdj f;alsdkfj das;lkfjasdf; asdfkj; asf\n",
@@ -297,230 +174,78 @@
     {
      "cell_type": "code",
      "collapsed": false,
-     "input": [],
+     "input": [
+      "xmax=500"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [],
+     "prompt_number": 14
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from numpy import *\n",
+      "\n",
+      "xs = [x for x in arange(0,xmax,0.1)]\n",
+      "ys = [x**1.3 for x in xs]\n",
+      "\n",
+      "plt.plot(xs,sin(radians(ys)))\n",
+      "plt.ylim((-2,2))\n",
+      "plt.show()"
+     ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
-       "html": [
-        "<style>\n",
-        "    div.cell{\n",
-        "        width: 850px;\n",
-        "        margin-left: 0% !important;\n",
-        "        margin-right: auto;\n",
-        "    }\n",
-        "    div.text_cell code {\n",
-        "        background: #F6F6F9;\n",
-        "        color: #0000FF;\n",
-        "   }\n",
-        "    h1 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "\t}\n",
-        "\t\n",
-        "    div.input_area {\n",
-        "        background: #F6F6F9;\n",
-        "        border: 1px solid #586e75;\n",
-        "    }\n",
-        "\n",
-        "    .text_cell_render h1 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 36pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1em;\n",
-        "        display: block;\n",
-        "        white-space: wrap;\n",
-        "    } \n",
-        "    h2 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "        text-indent:1em;\n",
-        "    }\n",
-        "    .text_cell_render h2 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 20pt;\n",
-        "        font-style: italic;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 1.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    } \n",
-        "    h3 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h3 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 18pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 2em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h4 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h4 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 16pt;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h5 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h5 {\n",
-        "        font-weight: 300;\n",
-        "        font-style: normal;\n",
-        "        color: #1d3b84;\n",
-        "        font-size: 16pt;\n",
-        "        margin-bottom: 0em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    div.text_cell_render{\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "        line-height: 135%;\n",
-        "        font-size: 125%;\n",
-        "        width:750px;\n",
-        "        margin-left:auto;\n",
-        "        margin-right:auto;\n",
-        "        text-align:justify;\n",
-        "        text-justify:inter-word;\n",
-        "    }\n",
-        "    div.output_subarea.output_text.output_pyout {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    div.output_subarea.output_stream.output_stdout.output_text {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    code{\n",
-        "      font-size: 70%;\n",
-        "    }\n",
-        "    .rendered_html code{\n",
-        "    background-color: transparent;\n",
-        "    }\n",
-        "    ul{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li li{\n",
-        "        padding-left: 0.2em; \n",
-        "        margin-bottom: 0.2em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    ol{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ol li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    a:link{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:visited{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:hover{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:focus{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:active{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    .rendered_html :link {\n",
-        "       text-decoration: underline; \n",
-        "    }\n",
-        "    .rendered_html :hover {\n",
-        "       text-decoration: none; \n",
-        "    }\n",
-        "    .rendered_html :visited {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :focus {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :active {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .warning{\n",
-        "        color: rgb( 240, 20, 20 )\n",
-        "    } \n",
-        "    hr {\n",
-        "      color: #f3f3f3;\n",
-        "      background-color: #f3f3f3;\n",
-        "      height: 1px;\n",
-        "    }\n",
-        "    blockquote{\n",
-        "      display:block;\n",
-        "      background: #fcfcfc;\n",
-        "      border-left: 5px solid #c76c0c;\n",
-        "      font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "      width:680px;\n",
-        "      padding: 10px 10px 10px 10px;\n",
-        "      text-align:justify;\n",
-        "      text-justify:inter-word;\n",
-        "      }\n",
-        "      blockquote p {\n",
-        "        margin-bottom: 0;\n",
-        "        line-height: 125%;\n",
-        "        font-size: 100%;\n",
-        "      }\n",
-        "</style>\n",
-        "<script>\n",
-        "    MathJax.Hub.Config({\n",
-        "                        TeX: {\n",
-        "                           extensions: [\"AMSmath.js\"]\n",
-        "                           },\n",
-        "                tex2jax: {\n",
-        "                    inlineMath: [ ['$','$'], [\"\\\\(\",\"\\\\)\"] ],\n",
-        "                    displayMath: [ ['$$','$$'], [\"\\\\[\",\"\\\\]\"] ]\n",
-        "                },\n",
-        "                displayAlign: 'center', // Change this to 'center' to center equations.\n",
-        "                \"HTML-CSS\": {\n",
-        "                    styles: {'.MathJax_Display': {\"margin\": 4}}\n",
-        "                }\n",
-        "        });\n",
-        "</script>\n"
-       ],
        "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 1,
+       "output_type": "display_data",
+       "png": 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truncated
        "text": [
-        "<IPython.core.display.HTML at 0x3c0d470>"
+        "<matplotlib.figure.Figure at 0x242aa90>"
        ]
       }
      ],
-     "prompt_number": 1
+     "prompt_number": 20
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "xmax=50\n",
+      "print (xs[0:5])"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "[0.0, 0.10000000000000001, 0.20000000000000001, 0.30000000000000004, 0.40000000000000002]\n"
+       ]
+      }
+     ],
+     "prompt_number": 21
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "This is where I explain the magic of how xs contains ....\n",
+      "blah\n",
+      "\n",
+      "##header"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 3,
+     "metadata": {},
+     "source": [
+      "Test"
+     ]
     },
     {
      "cell_type": "markdown",

discrete_bayes.ipynb

@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:266729b27e2d51ad90c675d939766430799e16551541a85150394b3f7eead92e"
+  "signature": "sha256:6cc4195c7865759973fa69265113f14252ea1ccb05d16196c88fa00f18862420"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -25,227 +25,101 @@
       "from __future__ import division, print_function\n",
       "import matplotlib.pyplot as plt\n",
       "import book_format\n",
-      "book_format.load_style()"
+      "book_format.load_style()\n",
+      "%install_ext https://raw.github.com/dpsanders/ipython_extensions/master/section_numbering/secnum.py\n",
+      "%load_ext secnum\n",
+      "%secnum"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
-       "html": [
-        "<style>\n",
-        "    div.cell{\n",
-        "        width: 850px;\n",
-        "        margin-left: 0% !important;\n",
-        "        margin-right: auto;\n",
-        "    }\n",
-        "    div.text_cell code {\n",
-        "        background: #F6F6F9;\n",
-        "        color: #0000FF;\n",
-        "   }\n",
-        "    h1 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "\t}\n",
-        "\t\n",
-        "    div.input_area {\n",
-        "        background: #F6F6F9;\n",
-        "        border: 1px solid #586e75;\n",
-        "    }\n",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Installed secnum.py. To use it, type:\n",
+        "  %load_ext secnum\n"
+       ]
+      },
+      {
+       "javascript": [
+        "console.log(\"Section numbering...\");\n",
         "\n",
-        "    .text_cell_render h1 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 30pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1em;\n",
-        "        display: block;\n",
-        "        white-space: wrap;\n",
-        "    } \n",
-        "    h2 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "function number_sections(threshold) {\n",
+        "\n",
+        "  var h1_number = 0;\n",
+        "  var h2_number = 0;\n",
+        "\n",
+        "  if (threshold === undefined) {\n",
+        "    threshold = 2;  // does nothing so far\n",
+        "  }\n",
+        "\n",
+        "  var cells = IPython.notebook.get_cells();\n",
+        "  \n",
+        "  for (var i=0; i < cells.length; i++) {\n",
+        "\n",
+        "    var cell = cells[i];\n",
+        "    if (cell.cell_type !== 'heading') continue;\n",
+        "    \n",
+        "    var level = cell.level;\n",
+        "    if (level > threshold) continue;\n",
+        "    \n",
+        "    if (level === 1) {\n",
+        "        \n",
+        "        h1_number ++;\n",
+        "        var h1_element = cell.element.find('h1');\n",
+        "        var h1_html = h1_element.html();\n",
+        "        \n",
+        "        console.log(\"h1_html: \" + h1_html);\n",
+        "\n",
+        "        var patt = /^[0-9]+\\.\\s(.*)/;   // section number at start of string\n",
+        "        var title = h1_html.match(patt);  // just the title\n",
+        "\n",
+        "        if (title != null) {  \n",
+        "          h1_element.html(h1_number + \". \" + title[1]);\n",
+        "        }\n",
+        "        else {\n",
+        "          h1_element.html(h1_number + \". \" + h1_html);\n",
+        "        }\n",
+        "        \n",
+        "        h2_number = 0;\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h2 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 20pt;\n",
-        "        font-style: italic;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    } \n",
-        "    h3 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "    \n",
+        "    if (level === 2) {\n",
+        "    \n",
+        "        h2_number ++;\n",
+        "        \n",
+        "        var h2_element = cell.element.find('h2');\n",
+        "        var h2_html = h2_element.html();\n",
+        "\n",
+        "        console.log(\"h2_html: \" + h2_html);\n",
+        "\n",
+        "        \n",
+        "        var patt = /^[0-9]+\\.[0-9]+\\.\\s/;\n",
+        "        var result = h2_html.match(patt);\n",
+        "\n",
+        "        if (result != null) {\n",
+        "          h2_html = h2_html.replace(result, \"\");\n",
+        "        }\n",
+        "\n",
+        "        h2_element.html(h1_number + \".\" + h2_number + \". \" + h2_html);\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h3 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 18pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 2em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h4 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h4 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 16pt;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h5 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h5 {\n",
-        "        font-weight: 300;\n",
-        "        font-style: normal;\n",
-        "        color: #1d3b84;\n",
-        "        font-size: 16pt;\n",
-        "        margin-bottom: 0em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    div.text_cell_render{\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "        line-height: 135%;\n",
-        "        font-size: 125%;\n",
-        "        width:750px;\n",
-        "        margin-left:auto;\n",
-        "        margin-right:auto;\n",
-        "        text-align:justify;\n",
-        "        text-justify:inter-word;\n",
-        "    }\n",
-        "    div.output_subarea.output_text.output_pyout {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    div.output_subarea.output_stream.output_stdout.output_text {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    code{\n",
-        "      font-size: 70%;\n",
-        "    }\n",
-        "    .rendered_html code{\n",
-        "    background-color: transparent;\n",
-        "    }\n",
-        "    ul{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li li{\n",
-        "        padding-left: 0.2em; \n",
-        "        margin-bottom: 0.2em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    ol{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ol li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    a:link{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:visited{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:hover{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:focus{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:active{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    .rendered_html :link {\n",
-        "       text-decoration: underline; \n",
-        "    }\n",
-        "    .rendered_html :hover {\n",
-        "       text-decoration: none; \n",
-        "    }\n",
-        "    .rendered_html :visited {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :focus {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :active {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .warning{\n",
-        "        color: rgb( 240, 20, 20 )\n",
-        "    } \n",
-        "    hr {\n",
-        "      color: #f3f3f3;\n",
-        "      background-color: #f3f3f3;\n",
-        "      height: 1px;\n",
-        "    }\n",
-        "    blockquote{\n",
-        "      display:block;\n",
-        "      background: #fcfcfc;\n",
-        "      border-left: 5px solid #c76c0c;\n",
-        "      font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "      width:680px;\n",
-        "      padding: 10px 10px 10px 10px;\n",
-        "      text-align:justify;\n",
-        "      text-justify:inter-word;\n",
-        "      }\n",
-        "      blockquote p {\n",
-        "        margin-bottom: 0;\n",
-        "        line-height: 125%;\n",
-        "        font-size: 100%;\n",
-        "      }\n",
-        "</style>\n",
-        "<script>\n",
-        "    MathJax.Hub.Config({\n",
-        "                        TeX: {\n",
-        "                           extensions: [\"AMSmath.js\"]\n",
-        "                           },\n",
-        "                tex2jax: {\n",
-        "                    inlineMath: [ ['$','$'], [\"\\\\(\",\"\\\\)\"] ],\n",
-        "                    displayMath: [ ['$$','$$'], [\"\\\\[\",\"\\\\]\"] ]\n",
-        "                },\n",
-        "                displayAlign: 'center', // Change this to 'center' to center equations.\n",
-        "                \"HTML-CSS\": {\n",
-        "                    styles: {'.MathJax_Display': {\"margin\": 4}}\n",
-        "                }\n",
-        "        });\n",
-        "</script>\n"
+        "    \n",
+        "  }\n",
+        "  \n",
+        "}\n",
+        "\n",
+        "number_sections();\n",
+        "\n",
+        "// $([IPython.evnts]).on('create.Cell', number_sections);\n",
+        "\n",
+        "$([IPython.events]).on('selected_cell_type_changed.Notebook', number_sections);\n",
+        "\n"
        ],
        "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 1,
-       "text": [
-        "<IPython.core.display.HTML at 0xf9c990>"
-       ]
+       "output_type": "display_data"
       }
      ],
      "prompt_number": 1

g-h_filter.ipynb

@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:c95a43951094c5ec86b654934c7bbbd79ece1d3f2eb3fb3cf541ddc9d6483a2a"
+  "signature": "sha256:327668f3cfc21e289ec66ce5afcf96d3bdb9e2cc78fc817e634cd292d081ac7a"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -25,227 +25,101 @@
       "from __future__ import division, print_function\n",
       "import matplotlib.pyplot as plt\n",
       "import book_format\n",
-      "book_format.load_style()"
+      "book_format.load_style()\n",
+      "%install_ext https://raw.github.com/dpsanders/ipython_extensions/master/section_numbering/secnum.py\n",
+      "%load_ext secnum\n",
+      "%secnum"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
-       "html": [
-        "<style>\n",
-        "    div.cell{\n",
-        "        width: 850px;\n",
-        "        margin-left: 0% !important;\n",
-        "        margin-right: auto;\n",
-        "    }\n",
-        "    div.text_cell code {\n",
-        "        background: #F6F6F9;\n",
-        "        color: #0000FF;\n",
-        "   }\n",
-        "    h1 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "\t}\n",
-        "\t\n",
-        "    div.input_area {\n",
-        "        background: #F6F6F9;\n",
-        "        border: 1px solid #586e75;\n",
-        "    }\n",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Installed secnum.py. To use it, type:\n",
+        "  %load_ext secnum\n"
+       ]
+      },
+      {
+       "javascript": [
+        "console.log(\"Section numbering...\");\n",
         "\n",
-        "    .text_cell_render h1 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 30pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1em;\n",
-        "        display: block;\n",
-        "        white-space: wrap;\n",
-        "    } \n",
-        "    h2 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "function number_sections(threshold) {\n",
+        "\n",
+        "  var h1_number = 0;\n",
+        "  var h2_number = 0;\n",
+        "\n",
+        "  if (threshold === undefined) {\n",
+        "    threshold = 2;  // does nothing so far\n",
+        "  }\n",
+        "\n",
+        "  var cells = IPython.notebook.get_cells();\n",
+        "  \n",
+        "  for (var i=0; i < cells.length; i++) {\n",
+        "\n",
+        "    var cell = cells[i];\n",
+        "    if (cell.cell_type !== 'heading') continue;\n",
+        "    \n",
+        "    var level = cell.level;\n",
+        "    if (level > threshold) continue;\n",
+        "    \n",
+        "    if (level === 1) {\n",
+        "        \n",
+        "        h1_number ++;\n",
+        "        var h1_element = cell.element.find('h1');\n",
+        "        var h1_html = h1_element.html();\n",
+        "        \n",
+        "        console.log(\"h1_html: \" + h1_html);\n",
+        "\n",
+        "        var patt = /^[0-9]+\\.\\s(.*)/;   // section number at start of string\n",
+        "        var title = h1_html.match(patt);  // just the title\n",
+        "\n",
+        "        if (title != null) {  \n",
+        "          h1_element.html(h1_number + \". \" + title[1]);\n",
+        "        }\n",
+        "        else {\n",
+        "          h1_element.html(h1_number + \". \" + h1_html);\n",
+        "        }\n",
+        "        \n",
+        "        h2_number = 0;\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h2 {\n",
-        "        font-weight: 200;\n",
-        "        font-size: 20pt;\n",
-        "        font-style: italic;\n",
-        "        line-height: 100%;\n",
-        "        color:#c76c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    } \n",
-        "    h3 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
+        "    \n",
+        "    if (level === 2) {\n",
+        "    \n",
+        "        h2_number ++;\n",
+        "        \n",
+        "        var h2_element = cell.element.find('h2');\n",
+        "        var h2_html = h2_element.html();\n",
+        "\n",
+        "        console.log(\"h2_html: \" + h2_html);\n",
+        "\n",
+        "        \n",
+        "        var patt = /^[0-9]+\\.[0-9]+\\.\\s/;\n",
+        "        var result = h2_html.match(patt);\n",
+        "\n",
+        "        if (result != null) {\n",
+        "          h2_html = h2_html.replace(result, \"\");\n",
+        "        }\n",
+        "\n",
+        "        h2_element.html(h1_number + \".\" + h2_number + \". \" + h2_html);\n",
+        "        \n",
         "    }\n",
-        "    .text_cell_render h3 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 18pt;\n",
-        "        line-height: 100%;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 2em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h4 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h4 {\n",
-        "        font-weight: 300;\n",
-        "        font-size: 16pt;\n",
-        "        color:#d77c0c;\n",
-        "        margin-bottom: 0.5em;\n",
-        "        margin-top: 0.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    h5 {\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "    }\n",
-        "    .text_cell_render h5 {\n",
-        "        font-weight: 300;\n",
-        "        font-style: normal;\n",
-        "        color: #1d3b84;\n",
-        "        font-size: 16pt;\n",
-        "        margin-bottom: 0em;\n",
-        "        margin-top: 1.5em;\n",
-        "        display: block;\n",
-        "        white-space: nowrap;\n",
-        "    }\n",
-        "    div.text_cell_render{\n",
-        "        font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "        line-height: 135%;\n",
-        "        font-size: 125%;\n",
-        "        width:750px;\n",
-        "        margin-left:auto;\n",
-        "        margin-right:auto;\n",
-        "        text-align:justify;\n",
-        "        text-justify:inter-word;\n",
-        "    }\n",
-        "    div.output_subarea.output_text.output_pyout {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    div.output_subarea.output_stream.output_stdout.output_text {\n",
-        "        overflow-x: auto;\n",
-        "        overflow-y: scroll;\n",
-        "        max-height: 300px;\n",
-        "    }\n",
-        "    code{\n",
-        "      font-size: 70%;\n",
-        "    }\n",
-        "    .rendered_html code{\n",
-        "    background-color: transparent;\n",
-        "    }\n",
-        "    ul{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li li{\n",
-        "        padding-left: 0.2em; \n",
-        "        margin-bottom: 0.2em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    ol{\n",
-        "        margin: 2em;\n",
-        "    }\n",
-        "    ol li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.5em; \n",
-        "    }\n",
-        "    ul li{\n",
-        "        padding-left: 0.5em; \n",
-        "        margin-bottom: 0.5em; \n",
-        "        margin-top: 0.2em; \n",
-        "    }\n",
-        "    a:link{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:visited{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:hover{\n",
-        "       font-weight: bold;\n",
-        "       color: #1d3b84;\n",
-        "    }\n",
-        "    a:focus{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    a:active{\n",
-        "       font-weight: bold;\n",
-        "       color:#447adb;\n",
-        "    }\n",
-        "    .rendered_html :link {\n",
-        "       text-decoration: underline; \n",
-        "    }\n",
-        "    .rendered_html :hover {\n",
-        "       text-decoration: none; \n",
-        "    }\n",
-        "    .rendered_html :visited {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :focus {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .rendered_html :active {\n",
-        "      text-decoration: none;\n",
-        "    }\n",
-        "    .warning{\n",
-        "        color: rgb( 240, 20, 20 )\n",
-        "    } \n",
-        "    hr {\n",
-        "      color: #f3f3f3;\n",
-        "      background-color: #f3f3f3;\n",
-        "      height: 1px;\n",
-        "    }\n",
-        "    blockquote{\n",
-        "      display:block;\n",
-        "      background: #fcfcfc;\n",
-        "      border-left: 5px solid #c76c0c;\n",
-        "      font-family: 'Open sans',verdana,arial,sans-serif;\n",
-        "      width:680px;\n",
-        "      padding: 10px 10px 10px 10px;\n",
-        "      text-align:justify;\n",
-        "      text-justify:inter-word;\n",
-        "      }\n",
-        "      blockquote p {\n",
-        "        margin-bottom: 0;\n",
-        "        line-height: 125%;\n",
-        "        font-size: 100%;\n",
-        "      }\n",
-        "</style>\n",
-        "<script>\n",
-        "    MathJax.Hub.Config({\n",
-        "                        TeX: {\n",
-        "                           extensions: [\"AMSmath.js\"]\n",
-        "                           },\n",
-        "                tex2jax: {\n",
-        "                    inlineMath: [ ['$','$'], [\"\\\\(\",\"\\\\)\"] ],\n",
-        "                    displayMath: [ ['$$','$$'], [\"\\\\[\",\"\\\\]\"] ]\n",
-        "                },\n",
-        "                displayAlign: 'center', // Change this to 'center' to center equations.\n",
-        "                \"HTML-CSS\": {\n",
-        "                    styles: {'.MathJax_Display': {\"margin\": 4}}\n",
-        "                }\n",
-        "        });\n",
-        "</script>\n"
+        "    \n",
+        "  }\n",
+        "  \n",
+        "}\n",
+        "\n",
+        "number_sections();\n",
+        "\n",
+        "// $([IPython.evnts]).on('create.Cell', number_sections);\n",
+        "\n",
+        "$([IPython.events]).on('selected_cell_type_changed.Notebook', number_sections);\n",
+        "\n"
        ],
        "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 1,
-       "text": [
-        "<IPython.core.display.HTML at 0x1c62b90>"
-       ]
+       "output_type": "display_data"
       }
      ],
      "prompt_number": 1