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cacos |
Function (ROM Call 0x13A) |
Complex arc cosine.
cacos calculates the arc cosine w = acos(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 arc cosine is defined by
acos(z) = -i ln (z + i sqrt (1 - z^2))
where ln and sqrt are complex natural
logarithm and complex square root (see cln and
csqrt).
Uses: acos, fabs, is_inf, is_nan, pow, sqrt, _bcd_math
Used by: cacosh