LOG10 DAX Function (Math and Trig)

Returns the base-10 logarithm of a number.

Syntax

LOG10 ( <Number> )
Parameter Attributes Description
Number

The positive number for which you want the base-10 logarithm.

Return values

Scalar A single decimal value.

Logarithm of number to base 10.

Remarks

Using LOG10 is a shortcut for using LOG using the base 10 as second argument.

» 3 related functions

Examples

--  Logarithmic functions include LOG10, LN, LOG, and EXP to compute
--  logarithms using various bases or exponential.
DEFINE
    VAR Vals = GENERATESERIES ( 1, 25, 4 )
EVALUATE
ADDCOLUMNS ( 
    Vals,
    "LN",       LN      ( [Value] ),
    "LOG10",    LOG10   ( [Value] ),
    "LOG 5",    LOG     ( [Value], 5 ),
    "EXP",      EXP     ( [Value] )
)

Value LN LOG10 LOG 5 EXP
1 0.00 0.00 0.00 2.72
5 1.61 0.70 1.00 148.41
9 2.20 0.95 1.37 8,103.08
13 2.56 1.11 1.59 442,413.39
17 2.83 1.23 1.76 24,154,952.75
21 3.04 1.32 1.89 1,318,815,734.48
25 3.22 1.40 2.00 72,004,899,337.39

Related functions

Other related functions are:

Last update: Mar 13, 2024   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo, Kenneth Barber,

Microsoft documentation: https://docs.microsoft.com/en-us/dax/log10-function-dax

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Context Transition

This function performs a Context Transition if called in a Row Context. Click to read more.

Row Context

This expression is executed in a Row Context. Click to read more.

Iterator

Not recommended

The use of this function is not recommended. See Remarks and Related functions for alternatives.

Not recommended

The use of this parameter is not recommended.

Deprecated

This function is deprecated. Jump to the Alternatives section to see the function to use.

Volatile

A volatile function may return a different result every time you call it, even if you provide the same arguments. Click to read more.

Deprecated

This parameter is deprecated and its use is not recommended.

DirectQuery compatibility

Limitations are placed on DAX expressions allowed in measures and calculated columns.
The state below shows the DirectQuery compatibility of the DAX function.

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