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Applies to: Databricks SQL
Databricks Runtime
Returns inverse hyperbolic tangent of expr
.
Syntax
atanh(expr)
Arguments
expr
: An expression that evaluates to a numeric.
Returns
A DOUBLE.
If the argument is out of bounds, the result is NaN
.
Examples
> SELECT atanh(0);
0.0
> SELECT atanh(2);
NaN