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<h2 class="chapter" id="Arithmetic-1"><span>17 Arithmetic<a class="copiable-link" href="#Arithmetic-1"> ¶</a></span></h2>
<p>Unless otherwise noted, all of the functions described in this chapter
will work for real and complex scalar, vector, or matrix arguments. Functions
described as <em class="dfn">mapping functions</em> apply the given operation individually to
each element when given a matrix argument. For example:
</p>
<div class="example">
<div class="group"><pre class="example-preformatted">sin ([1, 2; 3, 4])
⇒ 0.84147 0.90930
0.14112 -0.75680
</pre></div></div>
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