CTANH(3) Linux Programmer's Manual CTANH(3)

ctanh, ctanhf, ctanhl - complex hyperbolic tangent

#include <complex.h>
double complex ctanh(double complex z);
float complex ctanhf(float complex z);
long double complex ctanhl(long double complex z);
Link with -lm.

These functions calculate the complex hyperbolic tangent of z.
The complex hyperbolic tangent function is defined mathematically as:
    ctanh(z) = csinh(z) / ccosh(z)

These functions first appeared in glibc in version 2.1.

For an explanation of the terms used in this section, see attributes(7).
Interface Attribute Value
ctanh (), ctanhf (), ctanhl () Thread safety MT-Safe

C99, POSIX.1-2001, POSIX.1-2008.

cabs(3), catanh(3), ccosh(3), csinh(3), complex(7)