cosh
(PHP 4 >= 4.1.0, PHP 5)
cosh — Hyperbolic cosine
Опис
float cosh
( float
$arg
)
Returns the hyperbolic cosine of arg,
defined as (exp(arg) + exp(-arg))/2.
Параметри
-
arg -
The argument to process
Значення, що повертаються
The hyperbolic cosine of arg
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