ln function

Applies to: Databricks SQL Databricks Runtime

Returns the natural logarithm (base e) of expr.

Syntax

ln(expr)

Arguments

• expr: An expression that evaluates to a numeric.

Returns

A DOUBLE.

if the argument is out of bounds, the result is NULL.

Examples

> SELECT ln(1);
 0.0

Related functions

• exp function
• expm1 function
• e function
• log function
• log10 function
• log1p function