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