Functions Reference

Chapter 9
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Number functions 143
Ln
Format
Ln(number)
Parameter
number - any numeric expression or field containing a numeric expression
Data type returned
number
Description
Returns the base-e (natural) logarithm of number. The Exp function is the inverse of the
Ln function. Negative values return an error. For 0, the Ln function returns nothing
because these values are out of the acceptable range.
Examples
Ln(2.7182818) returns .99999998....
Ln(Exp(5)) returns 5.
Log
Format
Log(number)
Parameter
number - any positive numeric expression or field containing a numeric expression
Data type returned
number
Description
Returns the common logarithm (base 10) of number, which can be any positive value.
Negative values return an error. For 0, the Log function returns nothing because these
values are out of the acceptable range.
Examples
Log(1) returns 0.
Log(100) returns 2.
Λογ
Λν νυμβερ()
Λν 10()
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