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ccos |
Function (ROM Call 0x140) |
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