atanh
(PHP 4 >= 4.1.0, PHP 5)
atanh — Inverse hyperbolic tangent
Beskrivelse
float atanh
( float
$arg
)
Returns the inverse hyperbolic tangent of
arg, i.e. the value whose
hyperbolic tangent is arg.
Parametre
-
arg -
The argument to process
Returnerings Værdier
Inverse hyperbolic tangent of arg
ChangeLog
| Version | Beskrivelser |
|---|---|
| 5.3.0 | This function is now available on all platforms |
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