NAME

asinh, acosh, atanh − inverse hyperbolic functions

SYNOPSIS

#include <math.h>

double asinh(x)
double x;

double acosh(x)
double x;

double atanh(x)
double x;

DESCRIPTION

These functions compute the designated inverse hyperbolic functions for real arguments. 

ERROR (due to roundoff, etc.)

These functions inherit much of their error from log1p described in exp(3M). 

SEE ALSO

math(3M), exp(3M)

AUTHOR

W. Kahan, Kwok−Choi Ng

4.3 Berkeley Distribution  —  May 12, 1986