ref: f1652d3fffe4457db7bf025bdb4ab1201065d923
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