[neutralino]

Originally Posted by Profpat [size=2] You are correct about the math being lacking as I am an accounting professor anything beyond addition, subtraction, multiplication, and division are beyond me. I did have set theory and calculus however. But others have critized that fact also " Where is the Math " Something I obviously need help on. I did ask one member what the formula was for a Venn Diagram, but to date, no answer.

Was that me you asked? If you directly asked me then I'm sure I would've answered, but if not I apologise.

Anyway, there is no specific formula for a Venn Diagram. Such a thing denotes the relationship between two sets. For example, if you imagine a Venn Diagram with two circles denoting two sets A and B, then the bit in the middle that is contained in both is called the set intersection. If we call this R, then we have the equation . I think you probably know this, though. As for a formula describing the whole Venn diagram: one does not exist, since everything contained in the Venn diagram (inculding the outside) is contained in U, the universal set, whatever you define that to be. Everything inside both of the circles is , the set union of the two sets defined as everything contained in A or B or both.

I guess this post isn't very useful, though!