cosh
(PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8)
cosh — Hyperbolic cosine
Description
$num
): float
Returns the hyperbolic cosine of num
,
defined as (exp(arg) + exp(-arg))/2
.
Parameters
-
num
-
The argument to process
Return Values
The hyperbolic cosine of num