acosh
PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8
acosh - Inverse hyperbolic cosine
acosh(
float$num ): float
Returns the inverse hyperbolic cosine of num, i.e. the value whose hyperbolic cosine is num.
Parameters
- num
-
The value to process
Return Values
The inverse hyperbolic cosine of num