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
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.cosh.php