2011 Khronos Group
acosh 3G
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. Results are undefined if x 1.

## Version Support

#VARTABLECOLS#
#FUNCTABLEHEADER#
acosh#newin13#

## See Also

sin, cos, sinh, cosh

## Copyright

Copyright 2011 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/.