Excel ATANH Function

ATANH(number)

Returns the hyperbolic arc-tangent of a number.

number

The number you want the inverse hyperbolic tangent of.

Remarks

* The inverse hyperbolic tangent of an angle is the inverse of the TANH 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.
* For a working example refer to the Trigonometry 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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