log10()

Returns the base-10 logarithm of the specified number. If a negative number is passed to the parameter, this returns NaN (Not a Number). It returns null when it receives an argument value, not a number.

Syntax

log10(NUM_EXPR)
Required Parameters
NUM_EXPR
Expression that returns int, short, long, float, or double.

Usage

json "{}" | eval result=log10(10) => 1

json "{}" | eval result=log10(100) => 2

json "{}" | eval result=log10(-10) => NaN