ln, log

Computes logarithms for numeric expressions.

Syntax

ln( <expr> )
log( <expr> [, base => <base> ] )

Arguments

<expr> can be int, uint, or float.

base is an optional int parameter for log. The default base is 10.

Returns

Returns float.

Examples

SELECT ln(2.718281828), log(100), log(8, base => 2);