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Nicolas P. Rougier 2016-07-14 18:28:02 -05:00
parent 8db82a0bcc
commit 6223625ee9
2 changed files with 8 additions and 5 deletions
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11
README.html
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@ -213,11 +213,9 @@ python -c <span class="literal string double">&quot;import numpy; numpy.info(num
</li>
<li><p class="first">What are the result of the following expressions?</p>
<pre class="code python literal-block">
<span class="name">np</span><span class="operator">.</span><span class="name">array</span><span class="punctuation">(</span><span class="literal number integer">0</span><span class="punctuation">)</span> <span class="operator">//</span> <span class="name">np</span><span class="operator">.</span><span class="name">array</span><span class="punctuation">(</span><span class="literal number integer">0</span><span class="punctuation">)</span>
<span class="name">np</span><span class="operator">.</span><span class="name">array</span><span class="punctuation">(</span><span class="literal number integer">0</span><span class="punctuation">)</span> <span class="operator">//</span> <span class="name">np</span><span class="operator">.</span><span class="name">array</span><span class="punctuation">(</span><span class="literal number float">0.</span><span class="punctuation">)</span>
<span class="name">np</span><span class="operator">.</span><span class="name">array</span><span class="punctuation">(</span><span class="literal number integer">0</span><span class="punctuation">)</span> <span class="operator">/</span> <span class="name">np</span><span class="operator">.</span><span class="name">array</span><span class="punctuation">(</span><span class="literal number integer">0</span><span class="punctuation">)</span>
<span class="name">np</span><span class="operator">.</span><span class="name">array</span><span class="punctuation">(</span><span class="literal number integer">0</span><span class="punctuation">)</span> <span class="operator">/</span> <span class="name">np</span><span class="operator">.</span><span class="name">array</span><span class="punctuation">(</span><span class="literal number float">0.</span><span class="punctuation">)</span>
<span class="name">np</span><span class="operator">.</span><span class="name">array</span><span class="punctuation">(</span><span class="literal number integer">0</span><span class="punctuation">)</span> <span class="operator">//</span> <span class="name">np</span><span class="operator">.</span><span class="name">array</span><span class="punctuation">(</span><span class="literal number integer">0</span><span class="punctuation">)</span>
<span class="name">np</span><span class="operator">.</span><span class="name">array</span><span class="punctuation">([</span><span class="name">np</span><span class="operator">.</span><span class="name">nan</span><span class="punctuation">])</span><span class="operator">.</span><span class="name">astype</span><span class="punctuation">(</span><span class="name builtin">int</span><span class="punctuation">)</span><span class="operator">.</span><span class="name">astype</span><span class="punctuation">(</span><span class="name builtin">float</span><span class="punctuation">)</span>
</pre>
</li>
<li><p class="first">How to round away from zero a float array ? (★☆☆)</p>
@ -235,6 +233,11 @@ python -c <span class="literal string double">&quot;import numpy; numpy.info(num
<span class="keyword">print</span><span class="punctuation">(</span><span class="name">np</span><span class="operator">.</span><span class="name">intersect1d</span><span class="punctuation">(</span><span class="name">Z1</span><span class="punctuation">,</span><span class="name">Z2</span><span class="punctuation">))</span>
</pre>
</li>
<li><p class="first">Is the following expressions true? (★☆☆)</p>
<pre class="code python literal-block">
<span class="name">np</span><span class="operator">.</span><span class="name">sqrt</span><span class="punctuation">(</span><span class="operator">-</span><span class="literal number integer">1</span><span class="punctuation">)</span> <span class="operator">==</span> <span class="name">np</span><span class="operator">.</span><span class="name">emath</span><span class="operator">.</span><span class="name">sqrt</span><span class="punctuation">(</span><span class="operator">-</span><span class="literal number integer">1</span><span class="punctuation">)</span>
</pre>
</li>
<li><p class="first">Extract the integer part of a random array using 5 different methods (★★☆)</p>
<pre class="code python literal-block">
<span class="name">Z</span> <span class="operator">=</span> <span class="name">np</span><span class="operator">.</span><span class="name">random</span><span class="operator">.</span><span class="name">uniform</span><span class="punctuation">(</span><span class="literal number integer">0</span><span class="punctuation">,</span><span class="literal number integer">10</span><span class="punctuation">,</span><span class="literal number integer">10</span><span class="punctuation">)</span>

2
README.rst
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@ -282,7 +282,7 @@ Thanks to Michiaki Ariga, there is now a
.. code-block:: python
np.sqrt(-1) == np.emath.sqrt([-1])
np.sqrt(-1) == np.emath.sqrt(-1)
#. Extract the integer part of a random array using 5 different methods (★★☆)