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<a name="csinh_002c-csinhf_002d_002d_002dcomplex-hyperbolic-sine"></a>
<h3 class="section">2.20 <code>csinh</code>, <code>csinhf</code>—complex hyperbolic sine</h3>
<a name="index-csinh"></a>
<a name="index-csinhf"></a>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">#include <complex.h>
double complex csinh(double complex <var>z</var>);
float complex csinhf(float complex <var>z</var>);
</pre></div>
<p><strong>Description</strong><br>
These functions compute the complex hyperbolic sine 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 sine value.
</p>
<br>
<p><strong>Portability</strong><br>
<code>csinh</code> and <code>csinhf</code> are ISO C99
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