Php/docs/function.atanh

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atanh

(PHP 4 >= 4.1.0, PHP 5, PHP 7)

atanhInverse hyperbolic tangent


Description

atanh ( float $arg ) : float

Returns the inverse hyperbolic tangent of arg, i.e. the value whose hyperbolic tangent is arg.


Parameters

arg
The argument to process


Return Values

Inverse hyperbolic tangent of arg


See Also