Sqrt function from Power Fx using Power Apps

Power Apps is a suite of apps, services, connectors, and data platforms that provides a rapid application development environment to build custom apps for your business needs. More Details https://docs.microsoft.com/en-us/powerapps/powerapps-overview.

Power Fx is the low-code language that will be used across the Microsoft Power Platform. It's a general-purpose, strong-typed, declarative, and functional programming language.

The Sqrt function returns the number that, when multiplied by itself, equals its argument.

Reading this article, you can learn how to perform the Sqrt function from Power Fx using Microsoft Power Apps. Also, you will be able to learn Button control, Label control, and TextInput control in the Power Apps environment.

Step 1. Open the URL https://powerapps.microsoft.com/en-us/ in the browser for Power apps.

Create an account with your Organisation Mail ID and log in, After login your Power Apps account.

Power Apps

Step 2. First, Click Create (+ ) and Select the Canvas app from blank.

Blank App

Create new app

Next, Give the App name as PAPFSqrt and the Format as Tablet.


Now, In the Power Apps studio environment, Select the Create a Form option.


Step 3. To test the Sqrt function, First Rename the Screen name as SCRSqrt.


Next, Insert  a Label control and set the Name and Text property as LblTitle and Sqrt function in canvas App using PowerFx with Power apps.

Text label

Next, Insert a Label control, set the Name and Text property as LblNum, and Enter The Number.


Insert a TextInput control and set the Name property as TxtNum and Format property as Number.


Insert a Button control and set the Name property as BtnCal and Text property as Calculate and set OnSelect action as UpdateContext({RES:(TxtNum)}) for testing Sqrt Power Fx.


Insert Label control and set the Name property as LblRes and Text property as "The Sqrt Value is:  " &Sqrt(RES.Text) for displaying Results.


Insert a Button control and set the Name property as BtnClr, Text property as Clear, and OnSelect  Property in Action as Reset(TxtNum);  UpdateContext({LblRes:""}); for reset the TextNum and Result.

Clear button

Finally, the form design looks like.

Power fx

Step 4. Now we can see the preview of your App in Power Apps Studio, and The output of the PAPFSqrt is.


After clicking the Calculate Button.

The Browser Display is.

Browser display

The Apple iPhone Display is.

iPhone display

The Tablet Display is.

Tablet display

After clicking the Clear Button.

Clear button


Now, you have successfully tested the Power Fx – Sqrt function in the Power Apps Studio environment.

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