Explain the Number Function ' SQRT ' in Tableau with Example?

 In Tableau, the SQRT function is a number function that returns the square root of a given number. It calculates the non-negative square root of a numeric value.

The syntax for the SQRT function in Tableau is as follows:

SQRT(number)

• number represents the numeric value for which you want to calculate the square root.

Here's an example to illustrate the usage of the SQRT function in Tableau:

Suppose you have a dataset with a column called "Value" that contains different numeric values.

Value
16
9
25
36

To calculate the square root of each value in the "Value" column using the SQRT function, you can create a calculated field in Tableau:

1. Right-click on a blank area in the "Data" pane in Tableau.
2. Select "Create Calculated Field."
3. In the formula editor, enter the following expression:

SQRT([Value])

4. Click "OK" to create the calculated field.

The calculated field, which utilizes the SQRT function, will calculate the square root of each value in the "Value" column.

The resulting dataset will be as follows:

Value	Square Root
16	4.000
9	3.000
25	5.000
36	6.000

In this example, the SQRT function calculates the square root of each value in the "Value" column. For instance, the square root of 16 is 4, the square root of 9 is 3, the square root of 25 is 5, and the square root of 36 is 6.

The SQRT function is commonly used to determine the length or magnitude of a vector, calculate distances between points, or analyze data with exponential relationships. By utilizing the SQRT function in Tableau, you can easily incorporate square root calculations into your visualizations and perform various mathematical operations on your data.