57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
//
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// "$Id: math.h,v 1.4 1999/01/07 19:17:08 mike Exp $"
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//
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// Math header file for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-1999 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems to "fltk-bugs@easysw.com".
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//
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#include <math.h>
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#ifdef WIN32
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// things missing from <math.h>:
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#define M_PI 3.14159265358979323846
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#define M_PI_2 1.57079632679489661923
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#define M_PI_4 0.78539816339744830962
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#define M_1_PI 0.31830988618379067154
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#define M_2_PI 0.63661977236758134308
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#define M_SQRT2 1.41421356237309504880
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#define M_SQRT1_2 0.70710678118654752440
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#else
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#ifdef __EMX__
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#include <float.h>
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#endif
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#endif
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#if defined(WIN32) || defined(CRAY)
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inline double rint(double v) {return floor(v+.5);}
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inline double copysign(double a, double b) {return b<0 ? -a : a;}
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#endif
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//
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// End of "$Id: math.h,v 1.4 1999/01/07 19:17:08 mike Exp $".
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//
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