ACOSH

Section: Linux Programmer's Manual (3)
Updated: June 13, 1993
Index Return to Main Contents
 

NAME

acosh - inverse hyperbolic cosine function  

SYNOPSIS

#include <math.h>

double acosh(double x);
 

DESCRIPTION

The acosh() function calculates the inverse hyperbolic cosine of x; that is the value whose hyperbolic cosine is x. If x is less than 1.0, acosh() returns not-a-number (NaN) and errno is set.  

ERRORS

EDOM
x is out of range.
 

CONFORMING TO

SVID 3, POSIX, BSD 4.3, ISO 9899  

SEE ALSO

asinh(3), atanh(3), cosh(3), sinh(3), tanh(3)


 

Index

NAME
SYNOPSIS
DESCRIPTION
ERRORS
CONFORMING TO
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 12:24:40 GMT, March 22, 2025