Log
Syntax
Log(numeric_expression, [ base ])
Input Parameters
numeric_expression
Is a valid nonzero or nonnegative numeric expression.
base
Optional. If provided, uses "base" as the logarithm base, otherwise the
natural logarithmic base of "e" is used.
Return Value
Returns the base logarithm. Given a single argument, it takes the natural logarithm (base e). Given two arguments, it uses the second argument as the base.