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<div class="title">CSC Trigonometric Cosecant Function </div> </div>
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<div class="textblock"><p>Section: <a class="el" href="sec_mathfunctions.html">Mathematical Functions</a> </p>
<h1><a class="anchor" id="Usage"></a>
Usage</h1>
<p>Computes the <code>csc</code> function for its argument. The general syntax for its use is </p>
<pre class="fragment"> y = csc(x)
</pre><p> where <code>x</code> is an <code>n</code>-dimensional array of numerical type. Integer types are promoted to the <code>double</code> type prior to calculation of the <code>csc</code> function. Output <code>y</code> is of the same size and type as the input <code>x</code>, (unless <code>x</code> is an integer, in which case <code>y</code> is a <code>double</code> type). </p>
<h1><a class="anchor" id="Function"></a>
Internals</h1>
<p>Mathematically, the <code>csc</code> function is defined for all arguments as </p>
<p class="formulaDsp">
<img class="formulaDsp" alt="\[ \csc x \equiv \frac{1}{\sin x}. \]" src="form_67.png"/>
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<h1><a class="anchor" id="Example"></a>
Example</h1>
<p>The following piece of code plots the real-valued <code>csc(2 pi x)</code> function over the interval of <code>[-1,1]</code>:</p>
<pre class="fragment">--> t = linspace(-1,1,1000);
--> plot(t,csc(2*pi*t))
--> axis([-1,1,-10,10]);
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