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</table></div><div><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:c/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div><div class="t-navbar-head"><a href="../numeric.html" title="c/numeric"> Numerics</a><div class="t-navbar-menu"><div><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <strong class="selflink">Common mathematical functions</strong> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="fenv.html" title="c/numeric/fenv">Floating-point environment</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="complex.html" title="c/numeric/complex">Complex number arithmetics</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="random.html" title="c/numeric/random">Random number generation</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="tgmath.html" title="c/numeric/tgmath">Type-generic math</a> </td></tr>
</table></div><div><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:c/numeric/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div><div class="t-navbar-head"><strong class="selflink"> Common mathematical functions</strong><div class="t-navbar-menu"><div><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv-h1"><td colspan="5"> Functions</td></tr>
<tr class="t-nv-h2"><td colspan="5"> Basic operations</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/abs.html" title="c/numeric/math/abs"><span class="t-lines"><span>abs</span><span>labs</span><span>llabs</span><span>imaxabs</span></span></a></div><div><span class="t-lines"><span></span><span></span><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/fabs.html" title="c/numeric/math/fabs"><span class="t-lines"><span>fabs</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/div.html" title="c/numeric/math/div"><span class="t-lines"><span>div</span><span>ldiv</span><span>lldiv</span><span>imaxdiv</span></span></a></div><div><span class="t-lines"><span></span><span></span><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/fmod.html" title="c/numeric/math/fmod"><span class="t-lines"><span>fmod</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/remainder.html" title="c/numeric/math/remainder"><span class="t-lines"><span>remainder</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/remquo.html" title="c/numeric/math/remquo"><span class="t-lines"><span>remquo</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/fma.html" title="c/numeric/math/fma"><span class="t-lines"><span>fma</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/fmax.html" title="c/numeric/math/fmax"><span class="t-lines"><span>fmax</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/fmin.html" title="c/numeric/math/fmin"><span class="t-lines"><span>fmin</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/fdim.html" title="c/numeric/math/fdim"><span class="t-lines"><span>fdim</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/nan.html" title="c/numeric/math/nan"><span class="t-lines"><span>nan</span><span>nanf</span><span>nanl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Exponential functions</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/exp.html" title="c/numeric/math/exp"><span class="t-lines"><span>exp</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/exp2.html" title="c/numeric/math/exp2"><span class="t-lines"><span>exp2</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/expm1.html" title="c/numeric/math/expm1"><span class="t-lines"><span>expm1</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/log.html" title="c/numeric/math/log"><span class="t-lines"><span>log</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/log10.html" title="c/numeric/math/log10"><span class="t-lines"><span>log10</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/log1p.html" title="c/numeric/math/log1p"><span class="t-lines"><span>log1p</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/log2.html" title="c/numeric/math/log2"><span class="t-lines"><span>log2</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Power functions</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/sqrt.html" title="c/numeric/math/sqrt"><span class="t-lines"><span>sqrt</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/cbrt.html" title="c/numeric/math/cbrt"><span class="t-lines"><span>cbrt</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/hypot.html" title="c/numeric/math/hypot"><span class="t-lines"><span>hypot</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/pow.html" title="c/numeric/math/pow"><span class="t-lines"><span>pow</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Trigonometric and hyperbolic functions</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/sin.html" title="c/numeric/math/sin"><span class="t-lines"><span>sin</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/cos.html" title="c/numeric/math/cos"><span class="t-lines"><span>cos</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/tan.html" title="c/numeric/math/tan"><span class="t-lines"><span>tan</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/asin.html" title="c/numeric/math/asin"><span class="t-lines"><span>asin</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/acos.html" title="c/numeric/math/acos"><span class="t-lines"><span>acos</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/atan.html" title="c/numeric/math/atan"><span class="t-lines"><span>atan</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/atan2.html" title="c/numeric/math/atan2"><span class="t-lines"><span>atan2</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/sinh.html" title="c/numeric/math/sinh"><span class="t-lines"><span>sinh</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/cosh.html" title="c/numeric/math/cosh"><span class="t-lines"><span>cosh</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/tanh.html" title="c/numeric/math/tanh"><span class="t-lines"><span>tanh</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/asinh.html" title="c/numeric/math/asinh"><span class="t-lines"><span>asinh</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/acosh.html" title="c/numeric/math/acosh"><span class="t-lines"><span>acosh</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/atanh.html" title="c/numeric/math/atanh"><span class="t-lines"><span>atanh</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Error and gamma functions</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/erf.html" title="c/numeric/math/erf"><span class="t-lines"><span>erf</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/erfc.html" title="c/numeric/math/erfc"><span class="t-lines"><span>erfc</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/lgamma.html" title="c/numeric/math/lgamma"><span class="t-lines"><span>lgamma</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/tgamma.html" title="c/numeric/math/tgamma"><span class="t-lines"><span>tgamma</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Nearest integer floating point operations</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/ceil.html" title="c/numeric/math/ceil"><span class="t-lines"><span>ceil</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/floor.html" title="c/numeric/math/floor"><span class="t-lines"><span>floor</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/round.html" title="c/numeric/math/round"><span class="t-lines"><span>round</span><span>lround</span><span>llround</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/trunc.html" title="c/numeric/math/trunc"><span class="t-lines"><span>trunc</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/nearbyint.html" title="c/numeric/math/nearbyint"><span class="t-lines"><span>nearbyint</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/rint.html" title="c/numeric/math/rint"><span class="t-lines"><span>rint</span><span>lrint</span><span>llrint</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Floating point manipulation functions</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/ldexp.html" title="c/numeric/math/ldexp"><span class="t-lines"><span>ldexp</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/scalbn.html" title="c/numeric/math/scalbn"><span class="t-lines"><span>scalbn</span><span>scalbln</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/ilogb.html" title="c/numeric/math/ilogb"><span class="t-lines"><span>ilogb</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/logb.html" title="c/numeric/math/logb"><span class="t-lines"><span>logb</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/frexp.html" title="c/numeric/math/frexp"><span class="t-lines"><span>frexp</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/modf.html" title="c/numeric/math/modf"><span class="t-lines"><span>modf</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/nextafter.html" title="c/numeric/math/nextafter"><span class="t-lines"><span>nextafter</span><span>nexttoward</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/copysign.html" title="c/numeric/math/copysign"><span class="t-lines"><span>copysign</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Classification</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/fpclassify.html" title="c/numeric/math/fpclassify"><span class="t-lines"><span>fpclassify</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/isfinite.html" title="c/numeric/math/isfinite"><span class="t-lines"><span>isfinite</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/isinf.html" title="c/numeric/math/isinf"><span class="t-lines"><span>isinf</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/isnan.html" title="c/numeric/math/isnan"><span class="t-lines"><span>isnan</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/isnormal.html" title="c/numeric/math/isnormal"><span class="t-lines"><span>isnormal</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/signbit.html" title="c/numeric/math/signbit"><span class="t-lines"><span>signbit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/isgreater.html" title="c/numeric/math/isgreater"><span class="t-lines"><span>isgreater</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/isgreaterequal.html" title="c/numeric/math/isgreaterequal"><span class="t-lines"><span>isgreaterequal</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/isless.html" title="c/numeric/math/isless"><span class="t-lines"><span>isless</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/islessequal.html" title="c/numeric/math/islessequal"><span class="t-lines"><span>islessequal</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/islessgreater.html" title="c/numeric/math/islessgreater"><span class="t-lines"><span>islessgreater</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/isunordered.html" title="c/numeric/math/isunordered"><span class="t-lines"><span>isunordered</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Macro constants</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/HUGE_VAL.html" title="c/numeric/math/HUGE VAL"><span class="t-lines"><span>HUGE_VALF</span><span>HUGE_VAL</span><span>HUGE_VALL</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="math/FP_categories.html" title="c/numeric/math/FP categories"><span class="t-lines"><span>FP_NORMAL</span><span>FP_SUBNORMAL</span><span>FP_ZERO</span><span>FP_INFINITE</span><span>FP_NAN</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div></td></tr>
</table></div></td></tr>
</table></div><div><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:c/numeric/math/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div></div>
<table id="toc" class="toc"><tr><td><div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="math.html#Functions"><span class="tocnumber">1</span> <span class="toctext">Functions</span></a>
<ul>
<li class="toclevel-2"><a href="math.html#Basic_operations"><span class="tocnumber">1.1</span> <span class="toctext">Basic operations</span></a></li>
<li class="toclevel-2"><a href="math.html#Exponential_functions"><span class="tocnumber">1.2</span> <span class="toctext">Exponential functions</span></a></li>
<li class="toclevel-2"><a href="math.html#Power_functions"><span class="tocnumber">1.3</span> <span class="toctext">Power functions</span></a></li>
<li class="toclevel-2"><a href="math.html#Trigonometric_functions"><span class="tocnumber">1.4</span> <span class="toctext">Trigonometric functions</span></a></li>
<li class="toclevel-2"><a href="math.html#Hyperbolic_functions"><span class="tocnumber">1.5</span> <span class="toctext">Hyperbolic functions</span></a></li>
<li class="toclevel-2"><a href="math.html#Error_and_gamma_functions"><span class="tocnumber">1.6</span> <span class="toctext">Error and gamma functions</span></a></li>
<li class="toclevel-2"><a href="math.html#Nearest_integer_floating-point_operations"><span class="tocnumber">1.7</span> <span class="toctext">Nearest integer floating-point operations</span></a></li>
<li class="toclevel-2"><a href="math.html#Floating-point_manipulation_functions"><span class="tocnumber">1.8</span> <span class="toctext">Floating-point manipulation functions</span></a></li>
<li class="toclevel-2"><a href="math.html#Classification_and_comparison"><span class="tocnumber">1.9</span> <span class="toctext">Classification and comparison</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-2"><a href="math.html#Types"><span class="tocnumber">2</span> <span class="toctext">Types</span></a></li>
<li class="toclevel-1 tocsection-3"><a href="math.html#Macro_constants"><span class="tocnumber">3</span> <span class="toctext">Macro constants</span></a>
<ul>
<li class="toclevel-2"><a href="math.html#Classification"><span class="tocnumber">3.1</span> <span class="toctext">Classification</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-4"><a href="math.html#References"><span class="tocnumber">4</span> <span class="toctext">References</span></a></li>
<li class="toclevel-1 tocsection-5"><a href="math.html#See_also"><span class="tocnumber">5</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=c/numeric/math&action=edit&section=1" title="Edit section: Functions">edit</a>]</span> <span class="mw-headline" id="Functions">Functions</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><stdlib.h></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/abs.html" title="c/numeric/math/abs"> <span class="t-lines"><span>abs</span><span>labs</span><span>llabs</span></span></a></div><div><span class="t-lines"><span></span><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes absolute value of an integral value (<span class="texhtml" style="white-space: nowrap;">|x|</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_abs&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/div.html" title="c/numeric/math/div"> <span class="t-lines"><span>div</span><span>ldiv</span><span>lldiv</span></span></a></div><div><span class="t-lines"><span></span><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes quotient and remainder of integer division <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_div&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><inttypes.h></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/abs.html" title="c/numeric/math/abs"> <span class="t-lines"><span>imaxabs</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes absolute value of an integral value (<span class="texhtml" style="white-space: nowrap;">|x|</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_imaxabs&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/div.html" title="c/numeric/math/div"> <span class="t-lines"><span>imaxdiv</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes quotient and remainder of integer division <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_imaxdiv&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><math.h></code> </div>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Basic_operations"> Basic operations </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/fabs.html" title="c/numeric/math/fabs"> <span class="t-lines"><span>fabs</span><span>fabsf</span><span>fabsl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes absolute value of a floating-point value (<span class="texhtml" style="white-space: nowrap;">|x|</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_fabs&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/fmod.html" title="c/numeric/math/fmod"> <span class="t-lines"><span>fmod</span><span>fmodf</span><span>fmodl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes remainder of the floating-point division operation <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_fmod&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/remainder.html" title="c/numeric/math/remainder"> <span class="t-lines"><span>remainder</span><span>remainderf</span><span>remainderl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes signed remainder of the floating-point division operation <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_remainder&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/remquo.html" title="c/numeric/math/remquo"> <span class="t-lines"><span>remquo</span><span>remquof</span><span>remquol</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes signed remainder as well as the three last bits of the division operation <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_remquo&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/fma.html" title="c/numeric/math/fma"> <span class="t-lines"><span>fma</span><span>fmaf</span><span>fmal</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes fused multiply-add operation <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_fma&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/fmax.html" title="c/numeric/math/fmax"> <span class="t-lines"><span>fmax</span><span>fmaxf</span><span>fmaxl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> determines larger of two floating-point values <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_fmax&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/fmin.html" title="c/numeric/math/fmin"> <span class="t-lines"><span>fmin</span><span>fminf</span><span>fminl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> determines smaller of two floating-point values <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_fmin&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/fdim.html" title="c/numeric/math/fdim"> <span class="t-lines"><span>fdim</span><span>fdimf</span><span>fdiml</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> determines positive difference of two floating-point values (<span class="texhtml" style="white-space: nowrap;">max(0, x-y)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_fdim&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/nan.html" title="c/numeric/math/nan"> <span class="t-lines"><span>nan</span><span>nanf</span><span>nanl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> returns a NaN (not-a-number) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_fnan&action=edit">[edit]</a></span>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Exponential_functions"> Exponential functions </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/exp.html" title="c/numeric/math/exp"> <span class="t-lines"><span>exp</span><span>expf</span><span>expl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes <i>e</i> raised to the given power (<span class="texhtml" style="white-space: nowrap;">e<sup>x</sup></span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_exp&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/exp2.html" title="c/numeric/math/exp2"> <span class="t-lines"><span>exp2</span><span>exp2f</span><span>exp2l</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes <i>2</i> raised to the given power (<span class="texhtml" style="white-space: nowrap;">2<sup>x</sup></span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_exp2&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/expm1.html" title="c/numeric/math/expm1"> <span class="t-lines"><span>expm1</span><span>expm1f</span><span>expm1l</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes <i>e</i> raised to the given power, minus one (<span class="texhtml" style="white-space: nowrap;">e<sup>x</sup>-1</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_expm1&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/log.html" title="c/numeric/math/log"> <span class="t-lines"><span>log</span><span>logf</span><span>logl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes natural (base-<i>e</i>) logarithm (<span class="texhtml" style="white-space: nowrap;">ln(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_log&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/log10.html" title="c/numeric/math/log10"> <span class="t-lines"><span>log10</span><span>log10f</span><span>log10l</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes common (base-<i>10</i>) logarithm (<span class="texhtml" style="white-space: nowrap;">log<sub>10</sub>(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_log10&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/log2.html" title="c/numeric/math/log2"> <span class="t-lines"><span>log2</span><span>log2f</span><span>log2l</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes base-2 logarithm (<span class="texhtml" style="white-space: nowrap;">log<sub>2</sub>(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_log2&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/log1p.html" title="c/numeric/math/log1p"> <span class="t-lines"><span>log1p</span><span>log1pf</span><span>log1pl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes natural (base-<i>e</i>) logarithm of 1 plus the given number (<span class="texhtml" style="white-space: nowrap;">ln(1+x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_log1p&action=edit">[edit]</a></span>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Power_functions"> Power functions </span></h5>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/pow.html" title="c/numeric/math/pow"> <span class="t-lines"><span>pow</span><span>powf</span><span>powl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes a number raised to the given power (<span class="texhtml" style="white-space: nowrap;">x<sup>y</sup></span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_pow&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/sqrt.html" title="c/numeric/math/sqrt"> <span class="t-lines"><span>sqrt</span><span>sqrtf</span><span>sqrtl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes square root (<span class="texhtml" style="white-space: nowrap;"><span class="t-mrad"><span>√</span><span>x</span></span></span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_sqrt&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/cbrt.html" title="c/numeric/math/cbrt"> <span class="t-lines"><span>cbrt</span><span>cbrtf</span><span>cbrtl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes cubic root (<span class="texhtml" style="white-space: nowrap;"><span class="t-mrad"><span>3</span><span>√</span><span>x</span></span></span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_cbrt&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/hypot.html" title="c/numeric/math/hypot"> <span class="t-lines"><span>hypot</span><span>hypotf</span><span>hypotl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes square root of the sum of the squares of two given numbers (<span class="texhtml" style="white-space: nowrap;"><span class="t-mrad"><span>√</span><span>x<span class="t-su">2<br /></span>+y<span class="t-su">2<br /></span></span></span></span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_hypot&action=edit">[edit]</a></span>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Trigonometric_functions"> Trigonometric functions </span></h5>
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<td> <div class="t-dsc-member-div"><div><a href="math/sin.html" title="c/numeric/math/sin"> <span class="t-lines"><span>sin</span><span>sinf</span><span>sinl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes sine (<span class="texhtml" style="white-space: nowrap;">sin(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_sin&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/cos.html" title="c/numeric/math/cos"> <span class="t-lines"><span>cos</span><span>cosf</span><span>cosl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes cosine (<span class="texhtml" style="white-space: nowrap;">cos(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_cos&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/tan.html" title="c/numeric/math/tan"> <span class="t-lines"><span>tan</span><span>tanf</span><span>tanl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes tangent (<span class="texhtml" style="white-space: nowrap;">tan(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_tan&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/asin.html" title="c/numeric/math/asin"> <span class="t-lines"><span>asin</span><span>asinf</span><span>asinl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes arc sine (<span class="texhtml" style="white-space: nowrap;">arcsin(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_asin&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/acos.html" title="c/numeric/math/acos"> <span class="t-lines"><span>acos</span><span>acosf</span><span>acosl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes arc cosine (<span class="texhtml" style="white-space: nowrap;">arccos(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_acos&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/atan.html" title="c/numeric/math/atan"> <span class="t-lines"><span>atan</span><span>atanf</span><span>atanl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes arc tangent (<span class="texhtml" style="white-space: nowrap;">arctan(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_atan&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="math/atan2.html" title="c/numeric/math/atan2"> <span class="t-lines"><span>atan2</span><span>atan2f</span><span>atan2l</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes arc tangent, using signs to determine quadrants <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_atan2&action=edit">[edit]</a></span>
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<td colspan="2"> <h5> <span class="mw-headline" id="Hyperbolic_functions"> Hyperbolic functions </span></h5>
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<td> <div class="t-dsc-member-div"><div><a href="math/sinh.html" title="c/numeric/math/sinh"> <span class="t-lines"><span>sinh</span><span>sinhf</span><span>sinhl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes hyperbolic sine (<span class="texhtml" style="white-space: nowrap;">sh(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_sinh&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/cosh.html" title="c/numeric/math/cosh"> <span class="t-lines"><span>cosh</span><span>coshf</span><span>coshl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes hyperbolic cosine (<span class="texhtml" style="white-space: nowrap;">ch(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_cosh&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="math/tanh.html" title="c/numeric/math/tanh"> <span class="t-lines"><span>tanh</span><span>tanhf</span><span>tanhl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes hyperbolic tangent <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_tanh&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="math/asinh.html" title="c/numeric/math/asinh"> <span class="t-lines"><span>asinh</span><span>asinhf</span><span>asinhl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes inverse hyperbolic sine (<span class="texhtml" style="white-space: nowrap;">arsinh(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_asinh&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/acosh.html" title="c/numeric/math/acosh"> <span class="t-lines"><span>acosh</span><span>acoshf</span><span>acoshl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes inverse hyperbolic cosine (<span class="texhtml" style="white-space: nowrap;">arcosh(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_acosh&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="math/atanh.html" title="c/numeric/math/atanh"> <span class="t-lines"><span>atanh</span><span>atanhf</span><span>atanhl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes inverse hyperbolic tangent (<span class="texhtml" style="white-space: nowrap;">artanh(x)</span>) <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_atanh&action=edit">[edit]</a></span>
</td></tr>
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<td colspan="2"> <h5> <span class="mw-headline" id="Error_and_gamma_functions"> Error and gamma functions </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/erf.html" title="c/numeric/math/erf"> <span class="t-lines"><span>erf</span><span>erff</span><span>erfl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes error function <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_erf&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/erfc.html" title="c/numeric/math/erfc"> <span class="t-lines"><span>erfc</span><span>erfcf</span><span>erfcl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes complementary error function <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_erfc&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/tgamma.html" title="c/numeric/math/tgamma"> <span class="t-lines"><span>tgamma</span><span>tgammaf</span><span>tgammal</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes gamma function <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_tgamma&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/lgamma.html" title="c/numeric/math/lgamma"> <span class="t-lines"><span>lgamma</span><span>lgammaf</span><span>lgammal</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes natural (base-<i>e</i>) logarithm of the gamma function <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_lgamma&action=edit">[edit]</a></span>
</td></tr>
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<td colspan="2"> <h5> <span class="mw-headline" id="Nearest_integer_floating-point_operations"> Nearest integer floating-point operations </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/ceil.html" title="c/numeric/math/ceil"> <span class="t-lines"><span>ceil</span><span>ceilf</span><span>ceill</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes smallest integer not less than the given value <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_ceil&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/floor.html" title="c/numeric/math/floor"> <span class="t-lines"><span>floor</span><span>floorf</span><span>floorl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes largest integer not greater than the given value <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_floor&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/trunc.html" title="c/numeric/math/trunc"> <span class="t-lines"><span>trunc</span><span>truncf</span><span>truncl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> rounds to nearest integer not greater in magnitude than the given value <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_trunc&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="math/round.html" title="c/numeric/math/round"> <span class="t-lines"><span>round</span><span>lround</span><span>llround</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> rounds to nearest integer, rounding away from zero in halfway cases <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_round&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/nearbyint.html" title="c/numeric/math/nearbyint"> <span class="t-lines"><span>nearbyint</span><span>nearbyintf</span><span>nearbyintl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> rounds to an integer using current rounding mode <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_nearbyint&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/rint.html" title="c/numeric/math/rint"> <span class="t-lines"><span>rint</span><span>rintf</span><span>rintl</span><span>lrint</span><span>lrintf</span><span>lrintl</span><span>llrint</span><span>llrintf</span><span>llrintl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> rounds to an integer using current rounding mode with <br /> exception if the result differs <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_rint&action=edit">[edit]</a></span>
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<td colspan="2"> <h5> <span class="mw-headline" id="Floating-point_manipulation_functions"> Floating-point manipulation functions </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/frexp.html" title="c/numeric/math/frexp"> <span class="t-lines"><span>frexp</span><span>frexpf</span><span>frexpl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> breaks a number into significand and a power of <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">2</span></span></span> <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_frexp&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/ldexp.html" title="c/numeric/math/ldexp"> <span class="t-lines"><span>ldexp</span><span>ldexpf</span><span>ldexpl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> multiplies a number by <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">2</span></span></span> raised to a power <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_ldexp&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/modf.html" title="c/numeric/math/modf"> <span class="t-lines"><span>modf</span><span>modff</span><span>modfl</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> breaks a number into integer and fractional parts <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_modf&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/scalbn.html" title="c/numeric/math/scalbn"> <span class="t-lines"><span>scalbn</span><span>scalbnf</span><span>scalbnl</span><span>scalbln</span><span>scalblnf</span><span>scalblnl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> computes efficiently a number times <span class="t-lc"><a href="../types/limits.html" title="c/types/limits">FLT_RADIX</a></span> raised to a power <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_scalbn&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/ilogb.html" title="c/numeric/math/ilogb"> <span class="t-lines"><span>ilogb</span><span>ilogbf</span><span>ilogbl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> extracts exponent of the given number <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_ilogb&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/logb.html" title="c/numeric/math/logb"> <span class="t-lines"><span>logb</span><span>logbf</span><span>logbl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> extracts exponent of the given number <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_logb&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/nextafter.html" title="c/numeric/math/nextafter"> <span class="t-lines"><span>nextafter</span><span>nextafterf</span><span>nextafterl</span><span>nexttoward</span><span>nexttowardf</span><span>nexttowardl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> determines next representable floating-point value towards the given value <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_nextafter&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/copysign.html" title="c/numeric/math/copysign"> <span class="t-lines"><span>copysign</span><span>copysignf</span><span>copysignl</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> produces a value with the magnitude of a given value and the sign of another given value <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_copysign&action=edit">[edit]</a></span>
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<td colspan="2"> <h5> <span class="mw-headline" id="Classification_and_comparison"> Classification and comparison </span></h5>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/fpclassify.html" title="c/numeric/math/fpclassify"> <span class="t-lines"><span>fpclassify</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> classifies the given floating-point value <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_fpclassify&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/isfinite.html" title="c/numeric/math/isfinite"> <span class="t-lines"><span>isfinite</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> checks if the given number has finite value <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_isfinite&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="math/isinf.html" title="c/numeric/math/isinf"> <span class="t-lines"><span>isinf</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> checks if the given number is infinite <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_isinf&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/isnan.html" title="c/numeric/math/isnan"> <span class="t-lines"><span>isnan</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> checks if the given number is NaN <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_isnan&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="math/isnormal.html" title="c/numeric/math/isnormal"> <span class="t-lines"><span>isnormal</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> checks if the given number is normal <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_isnormal&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/signbit.html" title="c/numeric/math/signbit"> <span class="t-lines"><span>signbit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> checks if the given number is negative <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_signbit&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/isgreater.html" title="c/numeric/math/isgreater"> <span class="t-lines"><span>isgreater</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> checks if the first floating-point argument is greater than the second <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_isgreater&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/isgreaterequal.html" title="c/numeric/math/isgreaterequal"> <span class="t-lines"><span>isgreaterequal</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> checks if the first floating-point argument is greater or equal than the second <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_isgreaterequal&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/isless.html" title="c/numeric/math/isless"> <span class="t-lines"><span>isless</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> checks if the first floating-point argument is less than the second <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_isless&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/islessequal.html" title="c/numeric/math/islessequal"> <span class="t-lines"><span>islessequal</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> checks if the first floating-point argument is less or equal than the second <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_islessequal&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="math/islessgreater.html" title="c/numeric/math/islessgreater"> <span class="t-lines"><span>islessgreater</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> checks if the first floating-point argument is less or greater than the second <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_islessgreater&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/isunordered.html" title="c/numeric/math/isunordered"> <span class="t-lines"><span>isunordered</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> checks if two floating-point values are unordered <br /> <span class="t-mark">(function)</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:c/numeric/math/dsc_isunordered&action=edit">[edit]</a></span>
</td></tr>
</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/numeric/math&action=edit&section=2" title="Edit section: Types">edit</a>]</span> <span class="mw-headline" id="Types">Types</span></h3>
<table class="t-dsc-begin">
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<td colspan="2"> <div>Defined in header <code><stdlib.h></code> </div>
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<td> <div class="t-dsc-member-div"><div><a href="math/div.html" title="c/numeric/math/div"> <span class="t-lines"><span>div_t</span></span></a></div></div>
</td>
<td> structure type, return of the <span class="t-c"><span class="mw-geshi c source-c"><a href="math/div.html"><span class="kw645">div</span></a></span></span> function <br /> <span class="t-mark">(typedef)</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:c/numeric/math/dsc_div_t&action=edit">[edit]</a></span>
</td></tr>
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<td> <div class="t-dsc-member-div"><div><a href="math/div.html" title="c/numeric/math/div"> <span class="t-lines"><span>ldiv_t</span></span></a></div></div>
</td>
<td> structure type, return of the <span class="t-c"><span class="mw-geshi c source-c"><a href="math/div.html"><span class="kw646">ldiv</span></a></span></span> function <br /> <span class="t-mark">(typedef)</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:c/numeric/math/dsc_ldiv_t&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="math/div.html" title="c/numeric/math/div"> <span class="t-lines"><span>lldiv_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> structure type, return of the <span class="t-c"><span class="mw-geshi c source-c">lldiv</span></span> function <br /> <span class="t-mark">(typedef)</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:c/numeric/math/dsc_lldiv_t&action=edit">[edit]</a></span>
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<td colspan="2"> <div>Defined in header <code><inttypes.h></code> </div>
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<td> <div class="t-dsc-member-div"><div><a href="math/div.html" title="c/numeric/math/div"> <span class="t-lines"><span>imaxdiv_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> structure type, return of the <span class="t-c"><span class="mw-geshi c source-c">imaxdiv</span></span> function <br /> <span class="t-mark">(typedef)</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:c/numeric/math/dsc_imaxdiv_t&action=edit">[edit]</a></span>
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<td colspan="2"> <div>Defined in header <code><math.h></code> </div>
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<td> <div class="t-dsc-member-div"><div><span class="t-lines"><span>float_t</span></span></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> most efficient floating-point type at least as wide as <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">float</span></span></span> <br /> <span class="t-mark">(typedef)</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:c/numeric/math/dsc_float_t&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><span class="t-lines"><span>double_t</span></span></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> most efficient floating-point type at least as wide as <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">double</span></span></span> <br /> <span class="t-mark">(typedef)</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:c/numeric/math/dsc_double_t&action=edit">[edit]</a></span>
</td></tr>
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<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/numeric/math&action=edit&section=3" title="Edit section: Macro constants">edit</a>]</span> <span class="mw-headline" id="Macro_constants">Macro constants</span></h3>
<table class="t-dsc-begin">
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<td colspan="2"> <div>Defined in header <code><math.h></code> </div>
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<td> <div class="t-dsc-member-div"><div><a href="math/HUGE_VAL.html" title="c/numeric/math/HUGE VAL"> <span class="t-lines"><span>HUGE_VALF</span><span>HUGE_VAL</span><span>HUGE_VALL</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> indicates value too big to be representable (infinity) by <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">float</span></span></span>, <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">double</span></span></span> and <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">long</span> <span class="kw4">double</span></span></span> respectively <br /> <span class="t-mark">(macro constant)</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:c/numeric/math/dsc_HUGE_VAL&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/INFINITY.html" title="c/numeric/math/INFINITY"> <span class="t-lines"><span>INFINITY</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> evaluates to positive infinity or the value guaranteed to overflow a <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">float</span></span></span> <br /> <span class="t-mark">(macro constant)</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:c/numeric/math/dsc_INFINITY&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/NAN.html" title="c/numeric/math/NAN"> <span class="t-lines"><span>NAN</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> evaluates to a quiet NaN of type <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">float</span></span></span> <br /> <span class="t-mark">(macro constant)</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:c/numeric/math/dsc_NAN&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/math_errhandling.html" title="c/numeric/math/math errhandling"> <span class="t-lines"><span>math_errhandling</span><span>MATH_ERRNO</span><span>MATH_ERREXCEPT</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> defines the error handling mechanism used by the common mathematical functions <br /> <span class="t-mark">(macro constant)</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:c/numeric/math/dsc_math_errhandling&action=edit">[edit]</a></span>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Classification"> Classification </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="math/FP_categories.html" title="c/numeric/math/FP categories"> <span class="t-lines"><span>FP_NORMAL</span><span>FP_SUBNORMAL</span><span>FP_ZERO</span><span>FP_INFINITE</span><span>FP_NAN</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div></div>
</td>
<td> indicates a floating-point category <br /> <span class="t-mark">(macro constant)</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:c/numeric/math/dsc_FP_categories&action=edit">[edit]</a></span>
</td></tr>
</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/numeric/math&action=edit&section=4" title="Edit section: References">edit</a>]</span> <span class="mw-headline" id="References">References</span></h3>
<div class="t-ref-std-11">
<ul><li> C11 standard (ISO/IEC 9899:2011):
</li></ul>
<dl><dd><ul><li> 7.8 Format conversion of integer types <inttypes.h> (p: 217-220)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.12 Mathematics <math.h> (p: 231-261)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.22 General utilities <stdlib.h> (p: 340-360)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.31.5 Format conversion of integer types <inttypes.h> (p: 455)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.31.12 General utilities <stdlib.h> (p: 456)
</li></ul>
</dd></dl>
<div class="t-ref-std-c99">
<ul><li> C99 standard (ISO/IEC 9899:1999):
</li></ul>
<dl><dd><ul><li> 7.8 Format conversion of integer types <inttypes.h> (p: 198-201)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.12 Mathematics <math.h> (p: 212-242)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.20 General utilities <stdlib.h> (p: 306-324)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.26.4 Format conversion of integer types <inttypes.h> (p: 401)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.26.10 General utilities <stdlib.h> (p: 402)
</li></ul>
</dd></dl>
<div class="t-ref-std-c89">
<ul><li> C89/C90 standard (ISO/IEC 9899:1990):
</li></ul>
<dl><dd><ul><li> 4.5 MATHEMATICS <math.h>
</li></ul>
</dd></dl>
<dl><dd><ul><li> 4.10 GENERAL UTILITIES <stdlib.h>
</li></ul>
</dd></dl>
<dl><dd><ul><li> 4.13.4 Mathematics <math.h>
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.13.7 General utilities <stdlib.h>
</li></ul>
</dd></dl>
</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/numeric/math&action=edit&section=5" 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="../../cpp/numeric/math.html" title="cpp/numeric/math">C++ documentation</a></span> for <span class="t-dsc-see-tt"><span>Common mathematical functions</span></span></div>
</td></tr>
</table></div>
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