PHP 5.4.36 Released


(PHP 4 >= 4.1.0, PHP 5)

acoshInverse hyperbolic cosine


float acosh ( float $arg )

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



The value to process

Valorile întoarse

The inverse hyperbolic cosine of arg

Istoria schimbărilor

Versiunea Descriere
5.3.0 This function is now available on all platforms

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