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<h1>wcsmath.h</h1><a href="wcsmath_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*============================================================================</span>
<a name="l00002"></a>00002 <span class="comment"></span>
<a name="l00003"></a>00003 <span class="comment">  WCSLIB 4.8 - an implementation of the FITS WCS standard.</span>
<a name="l00004"></a>00004 <span class="comment">  Copyright (C) 1995-2011, Mark Calabretta</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment">  This file is part of WCSLIB.</span>
<a name="l00007"></a>00007 <span class="comment"></span>
<a name="l00008"></a>00008 <span class="comment">  WCSLIB is free software: you can redistribute it and/or modify it under the</span>
<a name="l00009"></a>00009 <span class="comment">  terms of the GNU Lesser General Public License as published by the Free</span>
<a name="l00010"></a>00010 <span class="comment">  Software Foundation, either version 3 of the License, or (at your option)</span>
<a name="l00011"></a>00011 <span class="comment">  any later version.</span>
<a name="l00012"></a>00012 <span class="comment"></span>
<a name="l00013"></a>00013 <span class="comment">  WCSLIB is distributed in the hope that it will be useful, but WITHOUT ANY</span>
<a name="l00014"></a>00014 <span class="comment">  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS</span>
<a name="l00015"></a>00015 <span class="comment">  FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for</span>
<a name="l00016"></a>00016 <span class="comment">  more details.</span>
<a name="l00017"></a>00017 <span class="comment"></span>
<a name="l00018"></a>00018 <span class="comment">  You should have received a copy of the GNU Lesser General Public License</span>
<a name="l00019"></a>00019 <span class="comment">  along with WCSLIB.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
<a name="l00020"></a>00020 <span class="comment"></span>
<a name="l00021"></a>00021 <span class="comment">  Correspondence concerning WCSLIB may be directed to:</span>
<a name="l00022"></a>00022 <span class="comment">    Internet email: mcalabre@atnf.csiro.au</span>
<a name="l00023"></a>00023 <span class="comment">    Postal address: Dr. Mark Calabretta</span>
<a name="l00024"></a>00024 <span class="comment">                    Australia Telescope National Facility, CSIRO</span>
<a name="l00025"></a>00025 <span class="comment">                    PO Box 76</span>
<a name="l00026"></a>00026 <span class="comment">                    Epping NSW 1710</span>
<a name="l00027"></a>00027 <span class="comment">                    AUSTRALIA</span>
<a name="l00028"></a>00028 <span class="comment"></span>
<a name="l00029"></a>00029 <span class="comment">  Author: Mark Calabretta, Australia Telescope National Facility</span>
<a name="l00030"></a>00030 <span class="comment">  http://www.atnf.csiro.au/~mcalabre/index.html</span>
<a name="l00031"></a>00031 <span class="comment">  $Id: wcsmath.h,v 4.8.1.1 2011/08/15 08:07:06 cal103 Exp cal103 $</span>
<a name="l00032"></a>00032 <span class="comment">*=============================================================================</span>
<a name="l00033"></a>00033 <span class="comment">*</span>
<a name="l00034"></a>00034 <span class="comment">* Summary of wcsmath.h</span>
<a name="l00035"></a>00035 <span class="comment">* --------------------</span>
<a name="l00036"></a>00036 <span class="comment">* Definition of mathematical constants used by WCSLIB.</span>
<a name="l00037"></a>00037 <span class="comment">*</span>
<a name="l00038"></a>00038 <span class="comment">*===========================================================================*/</span>
<a name="l00039"></a>00039 
<a name="l00040"></a>00040 <span class="preprocessor">#ifndef WCSLIB_WCSMATH</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span><span class="preprocessor">#define WCSLIB_WCSMATH</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span>
<a name="l00043"></a>00043 <span class="preprocessor">#ifdef PI</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span><span class="preprocessor">#undef PI</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00046"></a>00046 <span class="preprocessor"></span>
<a name="l00047"></a>00047 <span class="preprocessor">#ifdef D2R</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span><span class="preprocessor">#undef D2R</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span>
<a name="l00051"></a>00051 <span class="preprocessor">#ifdef R2D</span>
<a name="l00052"></a>00052 <span class="preprocessor"></span><span class="preprocessor">#undef R2D</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00054"></a>00054 <span class="preprocessor"></span>
<a name="l00055"></a>00055 <span class="preprocessor">#ifdef SQRT2</span>
<a name="l00056"></a>00056 <span class="preprocessor"></span><span class="preprocessor">#undef SQRT2</span>
<a name="l00057"></a>00057 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00058"></a>00058 <span class="preprocessor"></span>
<a name="l00059"></a>00059 <span class="preprocessor">#ifdef SQRT2INV</span>
<a name="l00060"></a>00060 <span class="preprocessor"></span><span class="preprocessor">#undef SQRT2INV</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00062"></a>00062 <span class="preprocessor"></span>
<a name="l00063"></a><a class="code" href="wcsmath_8h.html#598a3330b3c21701223ee0ca14316eca">00063</a> <span class="preprocessor">#define PI 3.141592653589793238462643</span>
<a name="l00064"></a><a class="code" href="wcsmath_8h.html#0a3cc1d5cde549e408f825ddd7f5853d">00064</a> <span class="preprocessor"></span><span class="preprocessor">#define D2R PI/180.0</span>
<a name="l00065"></a><a class="code" href="wcsmath_8h.html#39c663074332446065723e9be9350139">00065</a> <span class="preprocessor"></span><span class="preprocessor">#define R2D 180.0/PI</span>
<a name="l00066"></a><a class="code" href="wcsmath_8h.html#514396dd60fa0621c83072091fb2a0cd">00066</a> <span class="preprocessor"></span><span class="preprocessor">#define SQRT2 1.4142135623730950488</span>
<a name="l00067"></a><a class="code" href="wcsmath_8h.html#01d44d9782a85952a48ed76bf105351b">00067</a> <span class="preprocessor"></span><span class="preprocessor">#define SQRT2INV 1.0/SQRT2</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span>
<a name="l00069"></a>00069 <span class="preprocessor">#ifdef UNDEFINED</span>
<a name="l00070"></a>00070 <span class="preprocessor"></span><span class="preprocessor">#undef UNDEFINED</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00072"></a>00072 <span class="preprocessor"></span>
<a name="l00073"></a><a class="code" href="wcsmath_8h.html#2dc3870be25a19efa2940150507aaf71">00073</a> <span class="preprocessor">#define UNDEFINED 987654321.0e99</span>
<a name="l00074"></a><a class="code" href="wcsmath_8h.html#dea646bef24ac88b544d7094860127ff">00074</a> <span class="preprocessor"></span><span class="preprocessor">#define undefined(value) (value == UNDEFINED)</span>
<a name="l00075"></a>00075 <span class="preprocessor"></span>
<a name="l00076"></a>00076 <span class="preprocessor">#endif </span><span class="comment">/* WCSLIB_WCSMATH */</span>
</pre></div></div>
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