ref: 8f27ffaf6569d4284b370a25377e6dd86edfa563
dir: /dsp/math.h/
#define cosf cos #define expf exp #define fabsf fabs #define floorf floor #define fmodf fmod #define powf pow #define sinf sin #define sqrtf sqrt #define tanf tan #define fmaxf max #define fminf min #define logf log #define atan2f atan2