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19#ifdef fl_math_h_cyclic_include
20# include "/usr/include/math.h"
26# define fl_math_h_cyclic_include
28# undef fl_math_h_cyclic_include
31# define M_PI 3.14159265358979323846
32# define M_PI_2 1.57079632679489661923
33# define M_PI_4 0.78539816339744830962
34# define M_1_PI 0.31830988618379067154
35# define M_2_PI 0.63661977236758134308
39# define M_SQRT2 1.41421356237309504880
40# define M_SQRT1_2 0.70710678118654752440
43# if (defined(_WIN32) || defined(CRAY)) && !defined(__MINGW32__)
45inline double rint(
double v) {
return floor(v+.5);}
46inline double copysign(
double a,
double b) {
return b<0 ? -a : a;}