I am keeping this sample code here as reference for future me. Includes number to string conversion.

Oh I see. Parentheses do make a difference. Thanks for the info!

And may I ask what did you mean by "Just MAIN(T) won't work, even if it returned nothing."? This comment is confusing to me.

This is conflicting. DEF doesn't mention about passing arrays in the reference list, unless I read it wrong. If I can pass arrays, but I am doing something wrong in the screenshot in the above post, then it has to be the function parameters. I have to pass a size of the array? And this applies to all functions passing arrays? Besides, I didn't see how to pass multiple arrays as function parameter

Oh ok. Thanks for clarifying the Percent symbol. But why is this an illegal call? (See screenshot.) I am just passing an array as a parameter.

Wait. That means I need to use a Percent symbol? And how exactly do I pass an array element? Thanks though.

How to pass an array to a DEF function?