c99 [ flag... ] file... -lm [ library... ] #include <complex.h>
double complex cacosh(double complex z);
float complex cacoshf(float complex z);
long double complex cacoshl(long double complex z);
These functions compute the complex arc hyperbolic cosine of z, with a branch cut at values less than 1 along the real axis.
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 [ -ipi, +ipi ] along the imaginary axis.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
Interface Stability | Standard |
MT-Level | MT-Safe |
ccosh(3M), complex.h(3HEAD), attributes(5), standards(5)