c99 [ flag... ] file... -lm [ library... ] #include <complex.h>
double complex catanh(double complex z);
float complex catanhf(float complex z);
long double complex catanhl(long double complex z);
These functions compute the complex arc hyperbolic tangent of z, with branch cuts outside the interval [ -1, +1 ] along the real axis.
These functions return the complex arc hyperbolic tangent value, in the range of a strip mathematically unbounded along the real axis and in the interval [ -ipi/2, +ipi/2 ] along the imaginary axis.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
Interface Stability | Standard |
MT-Level | MT-Safe |
complex.h(3HEAD), ctanh(3M), attributes(5), standards(5)