Php/docs/function.acosh
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acosh
(PHP 4 >= 4.1.0, PHP 5, PHP 7)
acosh — Inverse hyperbolic cosine
Description
acosh
( float $arg
) : float
Returns the inverse hyperbolic cosine of
arg, i.e. the value whose
hyperbolic cosine is arg.
Parameters
arg- The value to process
Return Values
The inverse hyperbolic cosine of arg
