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67<h1>elem_math.cpp File Reference</h1>Elementary mathematical functions - source file. 
68<a href="#_details">More...</a>
69<p>
70<code>#include &lt;<a class="el" href="elem__math_8h-source.html">itpp/base/math/elem_math.h</a>&gt;</code><br>
71<table border="0" cellpadding="0" cellspacing="0">
72<tr><td></td></tr>
73<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
74<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g2eec208480e2632cff5ed30e561c7814"></a><!-- doxytag: member="elem_math.cpp::sqr" ref="g2eec208480e2632cff5ed30e561c7814" args="(const cvec &amp;x)" -->
75<a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#g2eec208480e2632cff5ed30e561c7814">itpp::sqr</a> (const <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;x)</td></tr>
76
77<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Absolute square of elements. <br></td></tr>
78<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g43f6f5077281e5678836c126825a88c2"></a><!-- doxytag: member="elem_math.cpp::sqr" ref="g43f6f5077281e5678836c126825a88c2" args="(const cmat &amp;x)" -->
79<a class="el" href="classitpp_1_1Mat.html#6bba394f181c76fda12759568986c613">mat</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#g43f6f5077281e5678836c126825a88c2">itpp::sqr</a> (const <a class="el" href="classitpp_1_1Mat.html#6fbac4b7184807da188e5b85d42f038b">cmat</a> &amp;x)</td></tr>
80
81<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Absolute square of elements. <br></td></tr>
82<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g3f4dada18782bdd40926cde698104215"></a><!-- doxytag: member="elem_math.cpp::abs" ref="g3f4dada18782bdd40926cde698104215" args="(const cvec &amp;x)" -->
83<a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#g3f4dada18782bdd40926cde698104215">itpp::abs</a> (const <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;x)</td></tr>
84
85<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Absolute value. <br></td></tr>
86<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gfcb495f2cf1c9b6d9ab23945abaffee2"></a><!-- doxytag: member="elem_math.cpp::abs" ref="gfcb495f2cf1c9b6d9ab23945abaffee2" args="(const cmat &amp;x)" -->
87<a class="el" href="classitpp_1_1Mat.html#6bba394f181c76fda12759568986c613">mat</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#gfcb495f2cf1c9b6d9ab23945abaffee2">itpp::abs</a> (const <a class="el" href="classitpp_1_1Mat.html#6fbac4b7184807da188e5b85d42f038b">cmat</a> &amp;x)</td></tr>
88
89<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Absolute value. <br></td></tr>
90<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g8e8cad2fa721d436d05ec76bfb4a288f"></a><!-- doxytag: member="elem_math.cpp::fact" ref="g8e8cad2fa721d436d05ec76bfb4a288f" args="(int index)" -->
91double&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#g8e8cad2fa721d436d05ec76bfb4a288f">itpp::fact</a> (int index)</td></tr>
92
93<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Calculates factorial coefficient for index &lt;= 170. <br></td></tr>
94<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gdce2409aa6d8245ea5f27f59c742bc58"></a><!-- doxytag: member="elem_math.cpp::binom" ref="gdce2409aa6d8245ea5f27f59c742bc58" args="(int n, int k)" -->
95double&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#gdce2409aa6d8245ea5f27f59c742bc58">itpp::binom</a> (int n, int k)</td></tr>
96
97<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Compute the binomial coefficient "n over k". <br></td></tr>
98<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g2c6c5fe6803c19ef6c09afb07558112f"></a><!-- doxytag: member="elem_math.cpp::binom_i" ref="g2c6c5fe6803c19ef6c09afb07558112f" args="(int n, int k)" -->
99int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#g2c6c5fe6803c19ef6c09afb07558112f">itpp::binom_i</a> (int n, int k)</td></tr>
100
101<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Compute the binomial coefficient "n over k". <br></td></tr>
102<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g7dc1e862096ecf42e933dcaaf225b3d7"></a><!-- doxytag: member="elem_math.cpp::log_binom" ref="g7dc1e862096ecf42e933dcaaf225b3d7" args="(int n, int k)" -->
103double&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#g7dc1e862096ecf42e933dcaaf225b3d7">itpp::log_binom</a> (int n, int k)</td></tr>
104
105<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Compute the base 10 logarithm of the binomial coefficient "n over k". <br></td></tr>
106<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#gfe9fa69e2d3126c5566aa1198716f4f3">itpp::gcd</a> (int a, int b)</td></tr>
107
108<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Compute the greatest common divisor (GCD) <em>g</em> of the elements <em>a</em> and <em>b</em>.  <a href="group__miscfunc.html#gfe9fa69e2d3126c5566aa1198716f4f3"></a><br></td></tr>
109<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g27856c210279f5138bc296def8974fc8"></a><!-- doxytag: member="elem_math.cpp::real" ref="g27856c210279f5138bc296def8974fc8" args="(const cvec &amp;x)" -->
110<a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#g27856c210279f5138bc296def8974fc8">itpp::real</a> (const <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;x)</td></tr>
111
112<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Real part of complex values. <br></td></tr>
113<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g3462947c2b146a5c2cfdfe1ccf8ebba2"></a><!-- doxytag: member="elem_math.cpp::real" ref="g3462947c2b146a5c2cfdfe1ccf8ebba2" args="(const cmat &amp;x)" -->
114<a class="el" href="classitpp_1_1Mat.html#6bba394f181c76fda12759568986c613">mat</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#g3462947c2b146a5c2cfdfe1ccf8ebba2">itpp::real</a> (const <a class="el" href="classitpp_1_1Mat.html#6fbac4b7184807da188e5b85d42f038b">cmat</a> &amp;x)</td></tr>
115
116<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Real part of complex values. <br></td></tr>
117<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g7e5f1a49d65bbb953f178eeb78cc0494"></a><!-- doxytag: member="elem_math.cpp::imag" ref="g7e5f1a49d65bbb953f178eeb78cc0494" args="(const cvec &amp;x)" -->
118<a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#g7e5f1a49d65bbb953f178eeb78cc0494">itpp::imag</a> (const <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;x)</td></tr>
119
120<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Imaginary part of complex values. <br></td></tr>
121<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gee40059841e66cb99892070cd587b522"></a><!-- doxytag: member="elem_math.cpp::imag" ref="gee40059841e66cb99892070cd587b522" args="(const cmat &amp;x)" -->
122<a class="el" href="classitpp_1_1Mat.html#6bba394f181c76fda12759568986c613">mat</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#gee40059841e66cb99892070cd587b522">itpp::imag</a> (const <a class="el" href="classitpp_1_1Mat.html#6fbac4b7184807da188e5b85d42f038b">cmat</a> &amp;x)</td></tr>
123
124<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Imaginary part of complex values. <br></td></tr>
125<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g72f64453f523bb6c54fbd253d46ea54b"></a><!-- doxytag: member="elem_math.cpp::arg" ref="g72f64453f523bb6c54fbd253d46ea54b" args="(const cvec &amp;x)" -->
126<a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#g72f64453f523bb6c54fbd253d46ea54b">itpp::arg</a> (const <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;x)</td></tr>
127
128<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Argument (angle). <br></td></tr>
129<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g8667915c4bc50cddf17193d8db63a75e"></a><!-- doxytag: member="elem_math.cpp::arg" ref="g8667915c4bc50cddf17193d8db63a75e" args="(const cmat &amp;x)" -->
130<a class="el" href="classitpp_1_1Mat.html#6bba394f181c76fda12759568986c613">mat</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__miscfunc.html#g8667915c4bc50cddf17193d8db63a75e">itpp::arg</a> (const <a class="el" href="classitpp_1_1Mat.html#6fbac4b7184807da188e5b85d42f038b">cmat</a> &amp;x)</td></tr>
131
132<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Argument (angle). <br></td></tr>
133</table>
134<hr><a name="_details"></a><h2>Detailed Description</h2>
135Elementary mathematical functions - source file.
136<p>
137<dl class="author" compact><dt><b>Author:</b></dt><dd>Tony Ottosson and Adam Piatyszek</dd></dl>
138-------------------------------------------------------------------------<p>
139Copyright (C) 1995-2008 (see AUTHORS file for a list of contributors)<p>
140This file is part of IT++ - a C++ library of mathematical, signal processing, speech processing, and communications classes and functions.<p>
141IT++ is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.<p>
142IT++ is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.<p>
143You should have received a copy of the GNU General Public License along with IT++. If not, see &lt;<a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>&gt;.<p>
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