Power Fx is the low code expression language used in Power Apps Canvas Apps. These expressions are very similar to those used in Excel, so this is a language designed for low code app making. In future it will also extend to other areas of Power Platform.
This is a short and straightforward explanation of Power Fx, with an example of the Sort formula in Excel and Canvas Apps.
For more information, check out this blog post:
https://powerapps.microsoft.com/en-us...