LN

LN is a DAX function that returns the natural logarithm of a number.

Syntax

LN( Number )

Argument	Properties	Description
Number		The positive number for which you want the natural logarithm.

Return Values

A decimal number.

Remarks

LN is the inverse of the EXP function.

The following example returns the natural logarithm of the number in the column, [Values].

= LN([Values])

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Microsoft documentation: https://learn.microsoft.com/en-us/dax/ln-function-dax