prac-4-beginners/solutions/ch-04-writing-your-first-lines-of-code/step_2.html

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    <h2
      id="step-2-create-a-variable-which-is-a-whole-number-compute-the-square-and-cube-of-it"
    >
      Step 2: Create a variable which is a whole number, compute the square and
      cube of it
    </h2>
    <pre><code>&gt;&gt;&gt; num = 4
&gt;&gt;&gt; sqr = num * num
&gt;&gt;&gt; sqr
16
&gt;&gt;&gt; cube = num * num * num
&gt;&gt;&gt; cube
64
&gt;&gt;&gt; # A better way to do this
&gt;&gt;&gt; num ** 2
16
&gt;&gt;&gt; num ** 3
64
&gt;&gt;&gt;</code></pre>
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