ATANH

ATANH(number)

Returns the hyperbolic arc-tangent of a number.

number

The number you want the inverse hyperbolic tangent of.

REMARKS

* The inverse of this function is the TANH function.
* For an illustrated example refer to the [[Hyperbolic Functions]] page.
* 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.
* The equivalent VBA function is VBA.ATN
* For the Microsoft documentation refer to support.microsoft.com
* For the Google documentation refer to support.google.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!