fastAtan2         102 modules/core/src/mathfuncs.cpp float fastAtan2( float y, float x )
fastAtan2          61 modules/features2d/src/opencl/orb.cl inline float fastAtan2( float y, float x )
fastAtan2          65 modules/hal/src/mathfuncs.cpp void fastAtan2(const float *Y, const float *X, float *angle, int len, bool angleInDegrees )