acosh - OpenGL ES 3.1 Reference Pages

## Name

acosh — return the arc hyperbolic cosine of the parameter

## Declaration

`genType acosh(` | genType x`)`;

## Parameters

`x`

  Specify the value whose arc hyperbolic cosine to return.

## Description

`acosh` returns the arc hyperbolic cosine of $x$; the non-negative inverse of cosh. The result is undefined if $x < 1$.

## Version Support

| OpenGL ES Shading Language Version
--- | ---
Function Name | 1.00 | 3.00 | 3.10
acosh | - | ✔ | ✔

## See Also

sin, cos, sinh, cosh

## Copyright

Copyright © 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.