Fixed generators (see https://github.com/didix21/mdutils/issues/69)

100_Numpy_exercises_with_hints_with_solutions.md

@@ -170,6 +170,12 @@ Z = np.zeros((8,8),dtype=int)
 Z[1::2,::2] = 1
 Z[::2,1::2] = 1
 print(Z)
+
+# Alternative solution: Using reshaping
+arr = np.ones(64,dtype=int)
+arr[::2]=0
+arr = arr.reshape((8,8))
+print(arr)
 ```
 #### 20. Consider a (6,7,8) shape array, what is the index (x,y,z) of the 100th element? (★☆☆)
 `hint: np.unravel_index`
@@ -615,8 +621,17 @@ print(Z[Z[:,1].argsort()])
 ```python
 # Author: Warren Weckesser
 
+# null : 0 
 Z = np.random.randint(0,3,(3,10))
 print((~Z.any(axis=0)).any())
+
+# null : np.nan
+Z=np.array([
+    [0,1,np.nan],
+    [1,2,np.nan],
+    [4,5,np.nan]
+])
+print(np.isnan(Z).all(axis=0))
 ```
 #### 61. Find the nearest value from a given value in an array (★★☆)
 `hint: np.abs, argmin, flat`
@@ -648,7 +663,7 @@ class NamedArray(np.ndarray):
         return obj
     def __array_finalize__(self, obj):
         if obj is None: return
-        self.info = getattr(obj, 'name', "no name")
+        self.name = getattr(obj, 'name', "no name")
 
 Z = NamedArray(np.arange(10), "range_10")
 print (Z.name)

100_Numpy_exercises_with_solutions.md

@@ -170,6 +170,12 @@ Z = np.zeros((8,8),dtype=int)
 Z[1::2,::2] = 1
 Z[::2,1::2] = 1
 print(Z)
+
+# Alternative solution: Using reshaping
+arr = np.ones(64,dtype=int)
+arr[::2]=0
+arr = arr.reshape((8,8))
+print(arr)
 ```
 #### 20. Consider a (6,7,8) shape array, what is the index (x,y,z) of the 100th element? (★☆☆)
 
@@ -615,8 +621,17 @@ print(Z[Z[:,1].argsort()])
 ```python
 # Author: Warren Weckesser
 
+# null : 0 
 Z = np.random.randint(0,3,(3,10))
 print((~Z.any(axis=0)).any())
+
+# null : np.nan
+Z=np.array([
+    [0,1,np.nan],
+    [1,2,np.nan],
+    [4,5,np.nan]
+])
+print(np.isnan(Z).all(axis=0))
 ```
 #### 61. Find the nearest value from a given value in an array (★★☆)
 
@@ -648,7 +663,7 @@ class NamedArray(np.ndarray):
         return obj
     def __array_finalize__(self, obj):
         if obj is None: return
-        self.info = getattr(obj, 'name', "no name")
+        self.name = getattr(obj, 'name', "no name")
 
 Z = NamedArray(np.arange(10), "range_10")
 print (Z.name)

100_Numpy_random.ipynb

@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "id": "a194d42e",
+   "id": "fc29ba19",
    "metadata": {},
    "source": [
     "# 100 numpy exercises\n",
@@ -18,7 +18,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "a7fd49f7",
+   "id": "c71c938e",
    "metadata": {},
    "source": [
     "File automatically generated. See the documentation to update questions/answers/hints programmatically."
@@ -26,7 +26,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b702d5a2",
+   "id": "9295ebad",
    "metadata": {},
    "source": [
     "Run the `initialize.py` module, then call a random question with `pick()` an hint towards its solution with\n",
@@ -36,7 +36,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "da60e1d0",
+   "id": "75ba9fda",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -46,7 +46,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "9fb544fe",
+   "id": "5e130ff3",
    "metadata": {},
    "outputs": [],
    "source": [

generators.py

@@ -108,7 +108,7 @@ def create_markdown(destination_filename='100_Numpy_exercises', with_hints=False
 
     # Add questions (and hint or answers if required)
     for n in range(1, 101):
-        mdfile.new_header(title=f"{n}. {QHA[f'q{n}']}", level=4)
+        mdfile.new_header(title=f"{n}. {QHA[f'q{n}']}", level=4, add_table_of_contents="n")
         if with_hints:
             mdfile.write(f"`{QHA[f'h{n}']}`")
         if with_solutions: