#ifndef _Fast_Math_H__ #define _Fast_Math_H__ // Constants #define ONE_BY_SQRT3 (0.57735026919f) // 1/sqrt(3) #define TWO_BY_SQRT3 (2.0f * 0.57735026919f) #define SQRT3_BY_2 (0.86602540378f) #define SQRT3 (1.73205080757f) #define M_PI (3.14159265f) void fast_sincos(float angle, float *sin, float *cos); void fast_norm_angle(float *angle); void normal_sincosf(float angle, float *sin, float *cos); #endif /* _Fast_Math_H__ */