I'm learning a whole lot here. Thanks guys.

In Grasshopper's corollary, I'd really like to be able to have

square,5,,red : zebra stripe,,,

In my real application that would be perfect, but...

Ideally something like:

Shape, Length, Width, Color, Length 1, Length 2, Hypotenuse

Square, 12,,Red,,,

Rectangle,8,10,Blue,,,

Triangle,,,Yellow,3,4,5