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);

The complex hyperbolic tangent function tanh(z) is defined as cosh(z)/sinh(z).

C99

cabs(3), ccosh(3), csinh(3)