| 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:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Interface Stability | Standard |
| MT-Level | MT-Safe |
| July 12, 2006 | SunOS 5.11 |