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catanh | Function (ROM Call 0x13F) |
math.h, timath.h |
void catanh (float z_re, float z_im, float *w_re, float *w_im); |
Complex hyperbolic area tangent.
catanh calculates the hyperbolic area tangent w = atanh(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 tangent is defined by
atanh(z) = ln ((1 + z) / (1 - z)) / 2
where ln is complex natural logarithm
(see cln).