Explicit, ALL function with programming if

[MZ_9344990]

Hi,

I have a problem connected to explicit, ALL and programming operators. I have made two variables with programming. And I would like a second one to show (with explicit, ALL) the function it has been using to get this value. Is it possible? Am I doing sth wrong? 

Also, how do you get rid of that green girth?

[Werner_E]

Please attach your Prime worksheet and state which version of Prime you are using (especially important if you don't use the latest release).

You may have to check the label of the red flagged variable in the definition of A to see why its considered undefined.