tangential. when i was learning to program BASIC, one of advices that i got is to number your lines with 10 increment. 10, 20, 30 etc, so later you don't need t

tangential. when i was learning to program BASIC, one of advices that i got is to number your lines with 10 increment. 10, 20, 30 etc, so later you don't need to rewrite a lot when you need to insert some line. Yes you had to number your lines. I didn't question why though.