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index 86bab8fd3..11200e537 100644
--- a/LICENSE.html
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 <p>Creates a substring from index 1 up to (not including) the final
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 <p>A ‘gotcha’ with array indexing is that singleton dimensions are
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 <p>An alternative way to achieve the same result is to use Numpy’s
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 <p>Since the row axis (0) is patients, it does not make sense to get the
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 <p>The shape will be <code>(60, 39)</code> because there is one fewer
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 <p>By using the <code>numpy.amax()</code> function after you apply the
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 <p>Python will first execute the function <code>add</code> with
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 <p>Attempting to define the <code>numbers</code> function results in
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 <ol style="list-style-type: decimal">
 <li>3 levels</li>
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 <p>3 <code>NameError</code>s for <code>number</code> being misspelled,
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 <p><code>IndexError</code>; the last entry is <code>seasons[3]</code>,
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--- a/extra_exercises.html
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 <div class="accordion-body">
 <p>Both examples exchange the values of <code>left</code> and
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diff --git a/images.html b/images.html
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 <p>Creates a substring from index 1 up to (not including) the final
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 <p>A ‘gotcha’ with array indexing is that singleton dimensions are
 dropped by default. That means <code>A[:, 0]</code> is a one dimensional
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 <p>An alternative way to achieve the same result is to use Numpy’s
 delete function to remove the second column of A. If you’re not sure
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 <p>Since the row axis (0) is patients, it does not make sense to get the
 difference between two arbitrary patients. The column axis (1) is in
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 <p>The shape will be <code>(60, 39)</code> because there is one fewer
 difference between columns than there are columns in the data.</p>
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 <p>By using the <code>numpy.amax()</code> function after you apply the
 <code>numpy.diff()</code> function, you will get the largest difference
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 <p>Because matplotlib normally sets x and y axes limits to the min and
 max of our data (depending on data range)</p>
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 <p>Because matplotlib interpolates (draws a straight line) between the
 points. One way to do avoid this is to use the Matplotlib
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 <p>Python will first execute the function <code>add</code> with
 <code>a = 7</code> and <code>b = 3</code>, and, therefore, print
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 <p>Attempting to define the <code>numbers</code> function results in
 <code>4. SyntaxError</code>. The defined parameters <code>two</code> and
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 <ol style="list-style-type: decimal">
 <li>3 levels</li>
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 <p><code>SyntaxError</code> for missing <code>():</code> at end of first
 line, <code>IndentationError</code> for mismatch between second and
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 <p>3 <code>NameError</code>s for <code>number</code> being misspelled,
 for <code>message</code> not defined, and for <code>a</code> not being
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 <p><code>IndexError</code>; the last entry is <code>seasons[3]</code>,
 so <code>seasons[4]</code> doesn’t make sense. A fixed version is:</p>
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