Returns the base-10 (common) logarithm of a number.
Log ( number )number - any positive numeric expression or field containing a numeric expression
number
FileMaker Pro 6.0 or earlier
Number can be any positive value. Negative values return an error. For 0, the Log function returns nothing because this value is out of the acceptable range.
Log(1) returns 0.
Log(100) returns 2.