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Calculates the inverse hyperbolic tangent (area hyperbolic tangent) of a value.

Syntax

Parameters

Return Type

ATANH returns a value of type DOUBLE_PRECISION. It is defined for arguments strictly between -1 and 1; an argument outside that range raises an out-of-range error.

Example

The inverse hyperbolic tangent of 0 is 0:

Rows: 1Execution time: 5.21ms

ATANH undoes TANH, and TANH(LN(2)) is 0.6, so this returns LN(2):

Rows: 1Execution time: 5.21ms