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<div class="titlepage"><div><div><h3 class="title">
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<a name="math_toolkit.logistic.logistic_sigmoid"></a><a class="link" href="logistic_sigmoid.html" title="logistic_sigmoid">logistic_sigmoid</a>
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</h3></div></div></div>
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<h5>
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<a name="math_toolkit.logistic.logistic_sigmoid.h0"></a>
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<span class="phrase"><a name="math_toolkit.logistic.logistic_sigmoid.synopsis"></a></span><a class="link" href="logistic_sigmoid.html#math_toolkit.logistic.logistic_sigmoid.synopsis">Synopsis</a>
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<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">math</span><span class="special">/</span><span class="identifier">special_functions</span><span class="special">/</span><span class="identifier">logistic_sigmoid</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
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<span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">math</span> <span class="special">{</span>
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<span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">RealType</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Policy</span><span class="special">></span>
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<span class="identifier">RealType</span> <span class="identifier">logistic_sigmoid</span><span class="special">(</span><span class="identifier">RealType</span> <span class="identifier">x</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">Policy</span><span class="special">&);</span>
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<span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">RealType</span><span class="special">></span>
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<span class="identifier">RealType</span> <span class="identifier">logistic_sigmoid</span><span class="special">(</span><span class="identifier">RealType</span> <span class="identifier">x</span><span class="special">)</span>
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<span class="special">}}</span> <span class="comment">// namespaces</span>
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</pre>
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<h5>
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<a name="math_toolkit.logistic.logistic_sigmoid.h1"></a>
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<span class="phrase"><a name="math_toolkit.logistic.logistic_sigmoid.description"></a></span><a class="link" href="logistic_sigmoid.html#math_toolkit.logistic.logistic_sigmoid.description">Description</a>
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<p>
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Returns the <a href="https://en.wikipedia.org/wiki/Logistic_function" target="_top">logistic
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sigmoid function</a> This function is broadly useful, and is used to
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compute the CDF of the logistic distribution. It is also sometimes referred
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to as expit as it is the inverse of the logit function.
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<div class="copyright-footer">Copyright © 2006-2021 Nikhar Agrawal, Anton Bikineev, Matthew Borland,
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Paul A. Bristow, Marco Guazzone, Christopher Kormanyos, Hubert Holin, Bruno
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Lalande, John Maddock, Evan Miller, Jeremy Murphy, Matthew Pulver, Johan Råde,
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Gautam Sewani, Benjamin Sobotta, Nicholas Thompson, Thijs van den Berg, Daryle
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Walker and Xiaogang Zhang<p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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