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cacosh |
Function (ROM Call 0x13D) |
Complex hyperbolic area cosine.
cacosh calculates the hyperbolic area cosine w = acosh(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 hyperbolic area cosine is defined by
acosh(z) = ln (z + sqrt (z^2 - 1))
where ln and sqrt are complex natural
logarithm and complex square root (see cln and
csqrt).
Uses: cacos, fabs, _bcd_math