Syntax:
ATANH(number)
Description:
The ATANH function (inverse hyperbolic tangent) is the inverse function of the TANH function: It returns the inverse hyperbolic tangent of a number – that is, the value whose TANH is the Number.
Number must lie within the range from -1 to 1.
Example:
ATANH(0.5) returns 0.54931
ATANH(TANH(0.1234)) returns 0.1234
See also: