| ccos | Function (ROM Call 0x140)

math.h, timath.h

void ccos (float z_re, float z_im, float *w_re, float *w_im);

Complex cosine.

ccos calculates the cosine w = cos(z) of the complex number which real and imaginary parts are z_re and z_im, and stores real and imaginary part of the result in floating point destinations pointed to by w_re and w_im. The complex cosine is defined by
cos(z) = (exp(i z) + exp(-i z)) / 2
where exp is complex exponential function (see cexp).

Uses: cos, cosh, sin, sinh, _bcd_math
Used by: ccosh, push_acos, push_acosh, push_asin, push_asinh, push_atan, push_atanh, push_cos, push_cosh, push_exp, push_ln, push_log10, push_sin, push_sinh, push_sqrt, push_tanh