Php/docs/function.cosh
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cosh
(PHP 4 >= 4.1.0, PHP 5, PHP 7)
cosh — Hyperbolic cosine
Description
cosh
( float $arg
) : float
Returns the hyperbolic cosine of arg
,
defined as (exp(arg) + exp(-arg))/2
.
Parameters
arg
- The argument to process
Return Values
The hyperbolic cosine of arg