cosh
(PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8)
cosh — Hyperbolic cosine
Description
cosh(float $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
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https://www.php.net/manual/en/function.cosh.php
