CATANH(3M) Mathematical Library Functions CATANH(3M)

catanh, catanhf, catanhl - complex arc hyperbolic tangent functions

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.

No errors are defined.

See attributes(7) for descriptions of the following attributes:

Interface Stability Standard
MT-Level MT-Safe

complex.h(3HEAD), ctanh(3M), attributes(7), standards(7)

July 12, 2006 SunOS 5.11