cacosh
, cacoshf
—complex arc hyperbolic cosine#include <complex.h> double complex cacosh(double complex z); float complex cacoshf(float complex z);
Description
These functions compute the complex arc hyperbolic cosine of z,
with a branch cut at values less than 1 along the real axis.
cacoshf
is identical to cacosh
, except that it performs
its calculations on floats complex
.
Returns
These functions return the complex arc hyperbolic cosine value,
in the range of a half-strip of non-negative values along the
real axis and in the interval [-i * pi, +i * pi] along the
imaginary axis.
Portability
cacosh
and cacoshf
are ISO C99