ASINH 3M "8 May 1985"
C 4 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.
SEE ALSO
intro(3M)
DIAGNOSTICS
Acosh returns the reserved operand on the VAX if the argument is less than 1.
Atanh returns the reserved operand on the VAX if the argument has absolute value bigger than or equal to 1.
AUTHOR
W. Kahan, Kwok-Choi Ng