Ln function

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Ln function

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.

Related topics

Functions reference (category list)

Functions reference (alphabetical list)

About formulas

About functions

Defining calculation fields

Using operators in formulas

Contents > Functions reference (alphabetical list) > Number functions > Ln function