28 lines
615 B
C
28 lines
615 B
C
#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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