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<div class="titlepage"><div><div><h3 class="title">
<a name="math_toolkit.hypergeometric.hypergeometric_1f0"></a><a class="link" href="hypergeometric_1f0.html" title="Hypergeometric 1F0">Hypergeometric
<sub>1</sub><span class="emphasis"><em>F</em></span><sub>0</sub> </a>
</h3></div></div></div>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</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">hypergeometric_1F0</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<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>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T2</span><span class="special">&gt;</span>
<a class="link" href="../result_type.html" title="Calculation of the Type of the Result"><span class="emphasis"><em>calculated-result-type</em></span></a> <span class="identifier">hypergeometric_1F0</span><span class="special">(</span><span class="identifier">T1</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T2</span> <span class="identifier">z</span><span class="special">);</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T2</span><span class="special">,</span> <span class="keyword">class</span> <a class="link" href="../../policy.html" title="Chapter 21. Policies: Controlling Precision, Error Handling etc">Policy</a><span class="special">&gt;</span>
<a class="link" href="../result_type.html" title="Calculation of the Type of the Result"><span class="emphasis"><em>calculated-result-type</em></span></a> <span class="identifier">hypergeometric_1F0</span><span class="special">(</span><span class="identifier">T1</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T2</span> <span class="identifier">z</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="../../policy.html" title="Chapter 21. Policies: Controlling Precision, Error Handling etc">Policy</a><span class="special">&amp;);</span>
<span class="special">}}</span> <span class="comment">// namespaces</span>
</pre>
<h5>
<a name="math_toolkit.hypergeometric.hypergeometric_1f0.h0"></a>
<span class="phrase"><a name="math_toolkit.hypergeometric.hypergeometric_1f0.description"></a></span><a class="link" href="hypergeometric_1f0.html#math_toolkit.hypergeometric.hypergeometric_1f0.description">Description</a>
</h5>
<p>
The function <code class="computeroutput"><span class="identifier">hypergeometric_1F0</span></code>
returns the result of:
</p>
<div class="blockquote"><blockquote class="blockquote"><p>
<span class="inlinemediaobject"><img src="../../../equations/hyper_1f0.svg"></span>
</p></blockquote></div>
<p>
The return type of these functions is computed using the <a class="link" href="../result_type.html" title="Calculation of the Type of the Result"><span class="emphasis"><em>result
type calculation rules</em></span></a> when <code class="computeroutput"><span class="identifier">T1</span></code>
and <code class="computeroutput"><span class="identifier">T2</span></code> are different types.
</p>
<p>
The final <a class="link" href="../../policy.html" title="Chapter 21. Policies: Controlling Precision, Error Handling etc">Policy</a> argument is optional and can
be used to control the behaviour of the function: how it handles errors,
what level of precision to use etc. Refer to the <a class="link" href="../../policy.html" title="Chapter 21. Policies: Controlling Precision, Error Handling etc">policy
documentation for more details</a>.
</p>
<p>
The functions return the result of <a class="link" href="../error_handling.html#math_toolkit.error_handling.domain_error">domain_error</a>
whenever the result is undefined or complex. This occurs for <code class="computeroutput"><span class="identifier">z</span> <span class="special">==</span> <span class="number">1</span></code>
or <code class="computeroutput"><span class="number">1</span> <span class="special">-</span>
<span class="identifier">z</span> <span class="special">&lt;</span>
<span class="number">0</span></code> and <code class="computeroutput"><span class="identifier">a</span></code>
not an integer.
</p>
<h5>
<a name="math_toolkit.hypergeometric.hypergeometric_1f0.h1"></a>
<span class="phrase"><a name="math_toolkit.hypergeometric.hypergeometric_1f0.implementation"></a></span><a class="link" href="hypergeometric_1f0.html#math_toolkit.hypergeometric.hypergeometric_1f0.implementation">Implementation</a>
</h5>
<p>
The implementation is trivial:
</p>
<div class="blockquote"><blockquote class="blockquote"><p>
<span class="serif_italic"><span class="emphasis"><em><sub>1</sub>F<sub>0</sub>(a, z) = (1-z)<sup>-a</sup></em></span></span>
</p></blockquote></div>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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