# EXAMPLE - POW and SQRT Functions

In this example, you learn how to compute exponentials and square roots on your numeric data.

Functions:

Item

Description

POW Function

Computes the value of the first argument raised to the value of the second argument.

SQRT Function

Computes the square root of the input parameter. Input value can be a Decimal or Integer literal or a reference to a column containing numeric values. All generated values are non-negative.

Source:

The dataset below contains values for x and y:

X

Y

3

4

4

9

8

10

30

40

Transformation:

You can use the following transformation to generate values for z2.

Nota

 Transformation Name New formula Single row formula (POW(x,2) + POW(y,2)) 'Z'

You can see how column Z is generated as the sum of squares of the other two columns, which yields z2.

Now, edit the transformation to wrap the value computation in a SQRT function. This step is done to compute the value for z, which is the distance between the two points based on the Pythagorean theorem.

 Transformation Name New formula Single row formula SQRT((POW(x,2) + POW(y,2))) 'Z'

Results:

X

Y

Z

3

4

5

4

9

9.848857801796104

8

10

12.806248474865697

30

40

50