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<a name="ccosh_002c-ccoshf_002d_002d_002dcomplex-hyperbolic-cosine"></a>
<h3 class="section">2.10 <code>ccosh</code>, <code>ccoshf</code>&mdash;complex hyperbolic cosine</h3>
<a name="index-ccosh"></a>
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<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">#include &lt;complex.h&gt;
double complex ccosh(double complex <var>z</var>);
float complex ccoshf(float complex <var>z</var>);

</pre></div>
<p><strong>Description</strong><br>
These functions compute the complex hyperbolic cosine of <var>z</var>.
</p>
<p><code>ccoshf</code> is identical to <code>ccosh</code>, except that it performs
its calculations on <code>floats complex</code>.
</p>
<br>
<p><strong>Returns</strong><br>
These functions return the complex hyperbolic cosine value.
</p>
<br>
<p><strong>Portability</strong><br>
<code>ccosh</code> and <code>ccoshf</code> are ISO C99
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