acosh
(PHP 4 >= 4.1.0, PHP 5, PHP 7)
acosh — Inverse hyperbolic cosine
Description
float acosh ( float $arg ) Returns the inverse hyperbolic cosine of arg, i.e. the value whose hyperbolic cosine is arg.
Parameters
arg
The value to process
Return Values
The inverse hyperbolic cosine of arg
Changelog
Version | Description |
|---|---|
5.3.0 | This function is now available on all platforms |
See Also
- cosh() - Hyperbolic cosine
- acos() - Arc cosine
- asinh() - Inverse hyperbolic sine
- atanh() - Inverse hyperbolic tangent
← acos
asin →
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