Log function from Power Fx using Power Apps

Introduction

Power Apps is a suite of apps, services, connectors, and data platforms that provide 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 Log Power Fx function in Power Apps returns the logarithm of its first argument in the base specified by its second argument. If the second argument is not specified, the default base is 10.

Reading this article, you can learn how to perform the Log 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,

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

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

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

Step 3. To test the Log function, First Rename the Screen name as SCRPAPF

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

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

Next, Insert  a Label control, set the Name and Text property as LblBase, and Enter the Base Value :

Insert  a TextInput control and set the Name property as TxtBase 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)});UpdateContext({RESB:(TxtBase)});  for testing Log function in Power Fx

Insert Label control and set the Name property as LblDBRes and Text property as "Log Value with Default Base(10):  " &Log(RES.Text) for displaying Results

Insert Label control and set the Name property as LblDBRes_1 and Text property as "Log Value with Specific Base Value:  " &Log(RES.Text,RESB.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); Reset(TxtBase); UpdateContext({LblDBRes:""}); UpdateContext({LblDBRes_1:""}); for reset the Text and Result

Finally, the form design looks like,

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

After clicking the Calculate Button,

The Browser Display is,

The Tablet Display is,

The Apple iPhone Display is,

After clicking the Clear Button,

Summary

Now, you have successfully tested the Power Fx - Log function in the Power Apps Studio environment.