`acosh` function

Applies to: check marked yes Databricks SQL Databricks Runtime

Returns the inverse hyperbolic cosine of expr.

Syntax

acosh(expr)

Arguments

expr: A numeric expression.

Returns

A DOUBLE.

If the argument is out of bounds, NaN is returned.

Examples

> SELECT acosh(1);
 0.0

> SELECT acosh(0);
 NaN