Log() Function

Returns the natural logarithm of a specified positive number. This is the reciprocal function to the Exp() function.

Note: The natural logarithm of 0 and negative numbers is undefined. If you pass 0 or a negative number to the Log() function, it returns a result of -99.0000000.

Syntax

result = Log (number)

Parameters

number

A positive literal number, analog tagname, or numeric expression.

Example(s)

Log(100) returns 4.6051702.

Log(1) returns 0.