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