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91 lines
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<a name="clog10"></a>
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<p>
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Next: <a href="conj.html#conj" accesskey="n" rel="next">conj</a>, Previous: <a href="clog.html#clog" accesskey="p" rel="prev">clog</a>, Up: <a href="Complex.html#Complex" accesskey="u" rel="up">Complex</a> [<a href="Document-Index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Document-Index.html#Document-Index" title="Index" rel="index">Index</a>]</p>
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<a name="clog10_002c-clog10f_002d_002d_002dcomplex-base_002d10-logarithm"></a>
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<h3 class="section">2.14 <code>clog10</code>, <code>clog10f</code>—complex base-10 logarithm</h3>
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<a name="index-clog10"></a>
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<a name="index-clog10f"></a>
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<p><strong>Synopsis</strong>
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</p><div class="example">
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<pre class="example">#define _GNU_SOURCE
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#include <complex.h>
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double complex clog10(double complex <var>z</var>);
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float complex clog10f(float complex <var>z</var>);
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</pre></div>
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<p><strong>Description</strong><br>
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These functions compute the complex base-10 logarithm of <var>z</var>.
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<code>clog10</code> is equivalent to <code>clog</code>(<var>z</var>)/<code>log</code>(10).
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</p>
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<p><code>clog10f</code> is identical to <code>clog10</code>, except that it performs
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its calculations on <code>floats complex</code>.
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</p>
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<br>
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<p><strong>Returns</strong><br>
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The clog10 functions return the complex base-10 logarithm value.
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<br>
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<p><strong>Portability</strong><br>
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<code>clog10</code> and <code>clog10f</code> are GNU extensions.
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