atanh - chung-leong/qb GitHub Wiki

atanh - Inverse hyperbolic tangent

float atanh( float $x )

atanh() calculates the inverse hyperbolic tangent of x, i.e. the value whose hyperbolic tangent is *x.

Parameters:

x - The number to process. It can be a scalar or an array.

Return Value:

The inverse hyperbolic tangent of x. If x is an array, then the return value will also be an array.

Version

1.0 and above.