How to use Power BI DAX Math Functions with examples?. Microsoft Power BI DAX provides various Math or mathematical Functions such as CEILING, FLOOR, CURRENCY, INT, SQRT, POWER, MOD, DIVIDE, ROUND, ROUNDUP, ROUNDDOWN, LCM, GCD, etc.
To demonstrate the Power BI DAX Math functions, we are going to use the below shown data. As you can see, there are 15 records in this table.
Power BI DAX Math Functions
The following series of examples show you the use of DAX Math Functions in Power BI
Power BI DAX CEILING Function
The DAX Ceiling function in Power BI returns the closest value, which is greater than or equal to a given value. The syntax of this Power BI CEILING Function is:
CEILING(Number, significance)
To demonstrate these DAX Math functions in Power BI, we have to use the calculated column. In order to create a column, please click on the New Column option under the Power BI Home tab, or Modeling tab.
As you can see from the below screenshot, we renamed the default column name as CEIL. The below statement find the closest integer value greater than or equal to Sales
CEILING(EmployeeSales[Sales])
Let me add this CEILING field to the table that we created earlier. Please refer Create Table Report article to understand the steps involved in creating a table
Power BI DAX FLOOR Function
The Power BI DAX FLOOR function returns the closest value, which is less than or equal to a given value. The syntax of this Power BI DAX Floor Function is:
FLOOR(expression, significance)
This Power BI DAX math function finds the closest value which is less than or equal to Sales
FLOOR(EmployeeSales[Sales], 1)
Power BI DAX ROUND Function
The Power BI DAX ROUND function is to round the given values to the closest value. The syntax of this Power BI DAX Round Function is:
ROUND(expression, significance)
It rounds the Sales values to the nearest integer
ROUND = ROUND(EmployeeSales[Sales], 0)
Power BI DAX CURRENCY Function
The DAX CURRENCY function in Power BI converts the value into the currency data type. The syntax of this Power BI DAX CURRENCY Function is:
CURRENCY(expression)
It converts the Sales values to Currency data type
Money = CURRENCY(EmployeeSales[Sales])
Power BI DAX INT Function
The DAX INT function in Power BI converts the given value into an integer data type. The syntax of this Power BI DAX INT Function is:
INT(expression)
Power BI DAX INT function converts the Sales values to Integer data type
INT = INT(EmployeeSales[Sales])
Power BI DAX SQRT Function
The DAX SQRT function in power BI returns the square root of a given number. The syntax of Power BI DAX SQRT Function is as shown below:
SQRT(expression)
It returns the square root of a Sales column values
SQRT = SQRT(EmployeeSales[Sales])
Power BI DAX SIGN Function
The Power BI DAX SIGN function returns the sign of a given number. This function returns 1 for Positive Values, -1 for Negative Values, and 0 for Zeros. The syntax of this Power BI DAX SIGN Function is:
SIGN(expression)
It returns the sign of the Service Grade column values
SIGN = SIGN(EmployeeSales[Service Grade])
Power BI DAX EVEN Function
The DAX EVEN function in Power BI returns the nearest even integer of a given number. The syntax of this Power BI DAX EVEN Function is:
EVEN(expression)
The below statement returns the nearest even integer of a Service Grade column values
EVEN = EVEN(EmployeeSales[Service Grade])
Power BI DAX ODD Function
The Power BI DAX ODD function returns the nearest odd integer of a given number. The syntax of this Power BI DAX ODD Function is:
ODD(expression)
It returns the nearest odd integer of a Service Grade column values
EVEN = EVEN(EmployeeSales[Service Grade])
Power BI DAX FACT Function
The Power BI DAX FACT function finds the factorial of a given number. The syntax of this Power BI DAX FACT Function is:
FACT(number)
For example factorial of 4 = 4 * 3 * 2 * 1 => 24
The below statement returns the factorial of a yearly income divide by 1000
FACT = FACT(EmployeeSales[Yearly Income] / 1000)
Power BI DAX POWER Function
The Power BI DAX POWER function finds the Power of a given number. This function accepts a second argument to specify the power value. The syntax of this Power BI DAX POWER Function is:
POWER(expression, raise_number)
For example Power(4, 3) = 4³.
The below statement returns the factorial of a yearly income divide by 1000
POWER = POWER(EmployeeSales[Sales], 2)
Power BI DAX DIVIDE Function
The DAX DIVIDE function in Power BI divides one value against another. If there is an error or unable to divide, then it returns BLANK values. The syntax of this Power BI DAX DIVIDE Function is:
DIVIDE(numerator, denominator)
The below statement divides sales column values by 30
POWER = POWER(EmployeeSales[Sales], 2)
Power BI DAX DIVIDE Function also accepts the third argument. Use this argument to specify the alternative number for BLANK values.
The below statement divides sales column values by Grade column values. If the result is blank, then 9 returned.
POWER = POWER(EmployeeSales[Sales], 2)
Power BI DAX ABS Function
The Power BI DAX ABS function returns the absolute positive value. The syntax of this Power BI DAX ABS Function is:
ABS(expression)
It returns the absolute positive value from Service Grade column values
ABS = ABS(EmployeeSales[Service Grade])
Power BI DAX MOD Function
The DAX MOD function in Power BI returns the remainder after the number divided. The syntax of this Power BI DAX MOD Function is:
MOD(number, divisor)
For example MOD(5, 2) = 1.
The below statement returns the remainders of Sales divisible by the SQRT function result.
MOD = MOD(EmployeeSales[Sales], EmployeeSales[SQRT])
Power BI DAX MROUND Function
The DAX MROUND function returns a number rounded to the specified multiple. The syntax of this Power BI DAX MRound Function is:
MROUND(expression, multiple)
The statement that we used is:
MROUND = MROUND(EmployeeSales[Sales], 0.05)
Power BI DAX QUOTIENT Function
The DAX QUOTIENT function in Power BI returns the integer portion of the division result. The syntax of the Power BI DAX QUOTIENT Function is:
QUOTIENT(numerator, denominator)
The below statement returns the integer portion of Sales divided by Mod function result:
QUOTIENT = QUOTIENT(EmployeeSales[Sales], EmployeeSales[MOD])
Power BI DAX RAND Function
The Power BI DAX RAND function returns the random positive number between 0 and 1. The syntax of the Power BI DAX RAND Function is:
RAND()
Let me create a new column to generate random values
RAND = RAND()
Power BI DAX RANDBETWEEN Function
The DAX RANDBETWEEN function in Power BI returns the random number between the user-specified start and end values. The syntax of the Power BI DAX RANDBETWEEN Function is:
RANDBETWEEN(start, end)
Let me create a new column to generate random values between 10 and 50
RANDBET = RANDBETWEEN(10, 50)
Power BI DAX TRUNC Function
The Power BI DAX TRUNC function truncates the given number to an integer by removing the decimals. The syntax of the Power BI DAX TRUNC Function is:
TRUNC(number, num_of_digits)
This Power BI DAX math function truncates the Sales column values
TRUNC = TRUNC(EmployeeSales[Sales], 1)
Power BI DAX ROUNDDOWN Function
The Power BI DAX ROUNDDOWN function rounds down the given number towards a zero. The syntax of the Power BI DAX ROUNDDOWN Function is:
ROUNDDOWN(number, num_of_digits)
It rounds down the Sales column values to 2 digits.
ROUNDDOWN = ROUNDDOWN(EmployeeSales[Sales], -2)
Power BI DAX ROUNDUP Function
The Power BI DAX ROUNDUP function rounds up the given number away from zero. The syntax of the Power BI DAX ROUNDUP Function is:
ROUNDUP(number, num_of_digits)
The below statement rounds up the Sales column values to 2 digits (i.e., greater than original).
ROUNDUP = ROUNDUP(EmployeeSales[Sales], -2)
Power BI DAX LCM Function
The DAX LCM function finds the Least Common or Lowest Common from multiple integer values. The syntax of this Power BI DAX LCM Function is:
LCM(expression1, expression2,.....)
It returns the Least Common from SQRT result and MOD function result
LCM = LCM(EmployeeSales[SQRT], EmployeeSales[MOD])
Power BI DAX GCD Function
The Power BI DAX GCD function finds the Greatest Common Divisor from multiple integer values. The Power BI DAX GCD Function syntax is:
GCD(expression1, expression2,.....)
This Power BI DAX math function returns the Greatest Common Divisor of SQRT function result and MOD result
GCD = GCD(EmployeeSales[SQRT], EmployeeSales[MOD])
