PHP 5.6.4 is available


(PHP 4 >= 4.1.0, PHP 5)

atanhInverse hyperbolic tangent


float atanh ( float $arg )

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



The argument to process

Valorile întoarse

Inverse hyperbolic tangent of arg

Istoria schimbărilor

Versiunea Descriere
5.3.0 This function is now available on all platforms

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