Evaluate function with parameter

[StephanP]

That's very nice of you, Didier, creating a specialized function for me.
Something new to me.

I'm trying this on the Virtual Calculator and I must admit that I kind'a get lost along the way.
- I managed to save the Function app under another name, thus creating a new app
- I select this new app
- I press [shift][1] for program
- There it displays "Function (App)"
- If I then select the option Edit, I get an empty code editor screen without the code you mention to be replaced

I've also tried to use the Connectivity kit to copy your code into the Virtual Calculator, but there too I was not able to work out how to do this.