delorie.com/djgpp/doc/libc/libc_41.html   search  
libc.a reference

[ < ] [ > ]   [ << ] [ Up ] [ >> ]         [Top] [Contents] [Index] [ ? ]

acosh

Syntax

 
#include <math.h>

double acosh(double x);

Description

This function returns the inverse hyperbolic cosine of x.

Return Value

The inverse hyperbolic cosine of x. If the value of x is less than 1, the return value is NaN and errno is set to EDOM.

Portability

ANSI/ISO C No
POSIX No


  webmaster     delorie software   privacy  
  Copyright © 2004     Updated Apr 2004