atanh function

Input type	Output type
float complex	float complex

This function calculates the hyperbolic arctangent of the argument and returns the result. If the argument is of type int, it is first converted to float by the compiler.

Examples:

atanh(0.5)       ; 0.5493
atanh((0.5, 0))  ; (0.5493, 0)

Notes

atanh(tanh(x)) is equal to x.
The argument should be greater than -1 and smaller than 1. Otherwise this function will return an invalid value. See Invalid Operations.