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<tr class="t-nv"><td colspan="5"> <a href="numeric/math.html" title="cpp/numeric/math">Common mathematical functions</a> </td></tr>
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<tr class="t-nv"><td colspan="5"> <a href="numeric/ratio.html" title="cpp/numeric/ratio"> Compile-time rational arithmetic</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span> </td></tr>
<tr class="t-nv-h2"><td colspan="5"> Generic numeric operations </td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="algorithm/iota.html" title="cpp/algorithm/iota"><span class="t-lines"><span>iota</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="algorithm/accumulate.html" title="cpp/algorithm/accumulate"><span class="t-lines"><span>accumulate</span></span></a></div></div></td></tr>
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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="algorithm/adjacent_difference.html" title="cpp/algorithm/adjacent difference"><span class="t-lines"><span>adjacent_difference</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="algorithm/partial_sum.html" title="cpp/algorithm/partial sum"><span class="t-lines"><span>partial_sum</span></span></a></div></div></td></tr>
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<p>The C++ numerics library includes common mathematical functions and types, as well as optimized numeric arrays and support for random number generation.
</p>
<table id="toc" class="toc"><tr><td><div id="toctitle"><h2>Contents</h2></div>
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<li class="toclevel-1 tocsection-1"><a href="numeric.html#Common_mathematical_functions"><span class="tocnumber">1</span> <span class="toctext">Common mathematical functions</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="numeric.html#Complex_numbers"><span class="tocnumber">2</span> <span class="toctext">Complex numbers</span></a></li>
<li class="toclevel-1 tocsection-3"><a href="numeric.html#Numeric_arrays"><span class="tocnumber">3</span> <span class="toctext">Numeric arrays</span></a></li>
<li class="toclevel-1 tocsection-4"><a href="numeric.html#Generic_numeric_operations"><span class="tocnumber">4</span> <span class="toctext">Generic numeric operations</span></a></li>
<li class="toclevel-1 tocsection-5"><a href="numeric.html#Pseudo-random_number_generation"><span class="tocnumber">5</span> <span class="toctext">Pseudo-random number generation</span></a></li>
<li class="toclevel-1 tocsection-6"><a href="numeric.html#Compile_time_rational_arithmetic_.28since_C.2B.2B11.29"><span class="tocnumber">6</span> <span class="toctext">Compile time rational arithmetic <span>(since C++11)</span></span></a></li>
<li class="toclevel-1 tocsection-7"><a href="numeric.html#Floating-point_environment"><span class="tocnumber">7</span> <span class="toctext">Floating-point environment</span></a></li>
<li class="toclevel-1 tocsection-8"><a href="numeric.html#See_also"><span class="tocnumber">8</span> <span class="toctext">See also</span></a></li>
</ul>
</td></tr></table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/numeric&action=edit&section=1" title="Edit section: Common mathematical functions">edit</a>]</span> <span class="mw-headline" id="Common_mathematical_functions"><a href="numeric/math.html" title="cpp/numeric/math">Common mathematical functions</a></span></h3>
<p>The header <code>cmath</code> provides <a href="numeric/math.html" title="cpp/numeric/math">standard C library mathematical functions</a> such as <span class="t-lc"><a href="numeric/math/fabs.html" title="cpp/numeric/math/fabs">std::fabs</a></span>, <span class="t-lc"><a href="numeric/math/sqrt.html" title="cpp/numeric/math/sqrt">std::sqrt</a></span>, and <span class="t-lc"><a href="numeric/math/sin.html" title="cpp/numeric/math/sin">std::sin</a></span>.
</p>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/numeric&action=edit&section=2" title="Edit section: Complex numbers">edit</a>]</span> <span class="mw-headline" id="Complex_numbers">Complex numbers</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><complex></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="numeric/complex.html" title="cpp/numeric/complex"> <span class="t-lines"><span>complex</span></span></a></div></div>
</td>
<td> a complex number type <br /> <span class="t-mark">(class template)</span>
</td></tr>
</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/numeric&action=edit&section=3" title="Edit section: Numeric arrays">edit</a>]</span> <span class="mw-headline" id="Numeric_arrays">Numeric arrays</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><valarray></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="numeric/valarray.html" title="cpp/numeric/valarray"> <span class="t-lines"><span>valarray</span></span></a></div></div>
</td>
<td> numeric arrays and array slices <br /> <span class="t-mark">(class template)</span>
</td></tr>
</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/numeric&action=edit&section=4" title="Edit section: Generic numeric operations">edit</a>]</span> <span class="mw-headline" id="Generic_numeric_operations">Generic numeric operations</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><numeric></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="algorithm/iota.html" title="cpp/algorithm/iota"> <span class="t-lines"><span>iota</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> fills a range with successive increments of the starting value <br /> <span class="t-mark">(function template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/algorithm/dsc_iota&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="algorithm/accumulate.html" title="cpp/algorithm/accumulate"> <span class="t-lines"><span>accumulate</span></span></a></div></div>
</td>
<td> sums up a range of elements <br /> <span class="t-mark">(function template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/algorithm/dsc_accumulate&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="algorithm/inner_product.html" title="cpp/algorithm/inner product"> <span class="t-lines"><span>inner_product</span></span></a></div></div>
</td>
<td> computes the inner product of two ranges of elements <br /> <span class="t-mark">(function template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/algorithm/dsc_inner_product&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="algorithm/adjacent_difference.html" title="cpp/algorithm/adjacent difference"> <span class="t-lines"><span>adjacent_difference</span></span></a></div></div>
</td>
<td> computes the differences between adjacent elements in a range <br /> <span class="t-mark">(function template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/algorithm/dsc_adjacent_difference&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="algorithm/partial_sum.html" title="cpp/algorithm/partial sum"> <span class="t-lines"><span>partial_sum</span></span></a></div></div>
</td>
<td> computes the partial sum of a range of elements <br /> <span class="t-mark">(function template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/algorithm/dsc_partial_sum&action=edit">[edit]</a></span>
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<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/numeric&action=edit&section=5" title="Edit section: Pseudo-random number generation">edit</a>]</span> <span class="mw-headline" id="Pseudo-random_number_generation"><a href="numeric/random.html" title="cpp/numeric/random">Pseudo-random number generation</a></span></h3>
<p>The header <code>random</code> defines <a href="numeric/random.html" title="cpp/numeric/random">pseudo-random number generators and numerical distributions</a>. The header <code>cstdlib</code> also includes C-style random number generation via <span class="t-lc"><a href="numeric/random/srand.html" title="cpp/numeric/random/srand">std::srand</a></span> and <span class="t-lc"><a href="numeric/random/rand.html" title="cpp/numeric/random/rand">std::rand</a></span>.
</p>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/numeric&action=edit&section=6" title="Edit section: Compile time rational arithmetic (since C++11)">edit</a>]</span> <span class="mw-headline" id="Compile_time_rational_arithmetic_.28since_C.2B.2B11.29"><a href="numeric/ratio.html" title="cpp/numeric/ratio">Compile time rational arithmetic</a> <span class="t-mark-rev t-since-cxx11">(since C++11)</span></span></h3>
<p>The header <code>ratio</code> provides <a href="numeric/ratio.html" title="cpp/numeric/ratio">types and functions for manipulating and storing compile-time ratios</a>.
</p>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/numeric&action=edit&section=7" title="Edit section: Floating-point environment">edit</a>]</span> <span class="mw-headline" id="Floating-point_environment"><a href="numeric/fenv.html" title="cpp/numeric/fenv">Floating-point environment</a></span></h3>
<p>The header <code>fenv</code> defines <a href="numeric/fenv.html" title="cpp/numeric/fenv">flags and functions related to exceptional floating-point state</a>, such as overflow and division by zero.
</p>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/numeric&action=edit&section=8" title="Edit section: See also">edit</a>]</span> <span class="mw-headline" id="See_also">See also</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td colspan="2"> <div class="t-dsc-see"><span><a href="../c/numeric.html" title="c/numeric">C documentation</a></span> for <span class="t-dsc-see-tt"><span>Numerics</span></span></div>
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