2011 Khronos Group
atanh 3G
atanh return the arc hyperbolic tangent of the parameter

## Declaration

genType `atanh` genType x

## Parameters

x

  Specify the value whose arc hyperbolic tangent to return.

## Description

`atanh` returns the arc hyperbolic tangent of x; the inverse of tanh. Results are undefined if x 1.

## Version Support

#VARTABLECOLS#
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atanh#newin11#

## 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/.