NAME

asinh() − inverse hyperbolic sine function

SYNOPSIS

#include <math.h>

double asinh(double x);

DESCRIPTION

The asinh() function computes the inverse hyperbolic sine of its argument. 

To use this function, link in the math library by specifying −lm on the compiler or linker command line. 

RETURN VALUE

If x is ±INFINITY, asinh() returns ±INFINITY respectively. 

If x is NaN, asinh() returns NaN. 

ERRORS

No errors are defined. 

SEE ALSO

sinh(3M), acosh(3M), atanh(3M), isinf(3M), isnan(3M). 

STANDARDS CONFORMANCE

asinh(): SVID3, XPG4.2

Hewlett-Packard Company  —  HP-UX Release 10.20:  July 1996