(PHP 4 >= 4.1.0, PHP 5, PHP 7)
atanh — Inverse hyperbolic tangent
$arg
) : float
Returns the inverse hyperbolic tangent of
arg, i.e. the value whose
hyperbolic tangent is arg.
argThe argument to process
Inverse hyperbolic tangent of arg
| Versiune | Descriere |
|---|---|
| 5.3.0 | This function is now available on all platforms |