atanatanh
(PHP 4 >= 4.0.7, PHP 5)
atanh — Inverse hyperbolic tangent
Descrierea
float atanh
( float $arg
)
Returns the inverse hyperbolic tangent of arg , i.e. the value whose hyperbolic tangent is arg .
Parametri
- arg
-
The argument to process
Valorile întroarse
Inverse hyperbolic tangent of arg
Istoria schimbărilor
| Versiunea | Descriere |
|---|---|
| 5.3.0 | This function is now available on all platforms |
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