ATANH(number)

Returns the hyperbolic arc-tangent of a number.


numberThe number you want the inverse hyperbolic tangent of.

REMARKS
* The hyperbolic arc-tangent of a number is the inverse of the TANH function.
* This function is also called the inverse hyperbolic tangent function.
* If "number" > 1, then #NUM! is returned.
* If "number" < 1, then #NUM! is returned.
* If "number" = 1, then #NUM! is returned.
* If "number" is not numeric, then #VALUE! is returned.
* You can use the ACOSH function to return the hyperbolic arc-cosine.
* You can use the ASINH function to return the hyperbolic arc-sine.
* You can use the TANH function to return the hyperbolic tangent.
* For a working example refer to the Hyperbolic Functions page.
* For the Microsoft documentation refer to support.office.com

 A
1=ATANH(0.5) = 0.549
2=ATANH(-0.1) = -0.1
3=ATANH(0.76159416) = 1
4=ATANH(TANH(0.5)) = 0.5
5=ATANH(1) = #NUM!
6=ATANH(-1) = #NUM!
7=ATANH(-10) = #NUM!
8=ATANH("some text") = #VALUE!

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