Trigonometry
Inverse Hyperbolic Tangent
Inverse hyperbolic tangent of x.
Formula
Formula
atanh(x) = ½ ln(1+x1−x)
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| x | argument | −1 < x < 1 | — | input |
Try it yourself
Interactive calculator
Worked examples
Example 1
Givenx = 0.5
Result0.5493061443
Example 2
Givenx = -0.25
Result-0.2554128119