PHP acosh() Function
Definition and Usage
The acosh() function returns the inverse hyperbolic cosine of a number.
Syntax
acosh(x)
| Parameter | Description |
|---|---|
| x | Required. A number. |
Description
Returns x The inverse hyperbolic cosine value, that is, its hyperbolic cosine is x value.
Tips and Comments
Note:This function is not implemented on the Windows platform.
