atanh
(PHP 4 >= 4.1.0, PHP 5, PHP 7)
atanh — Inverse hyperbolic tangent
Descrierea
atanh
( float
$num
) : float
Returns the inverse hyperbolic tangent of
num, i.e. the value whose
hyperbolic tangent is num.
Parametri
-
num -
The argument to process
Valorile întoarse
Inverse hyperbolic tangent of num
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