Thank you so much @sanity!
I never thought of that. Thanks.
I spent a lot of time on this yesterday and today.
Now it shows a failure, something related to the calculation.
But I will change my program. I was taking a look at the @wdccollett program (like below) and mine is very confusing.
I’m taking a look at each built-in function, seeing what I didn’t know, and then reworking my program.