Lots of very successful people, creative in their own right have said: If you don't know the answer, surround yourself with those who can figure it out for you.

When Edison was asked to show his mathematical formulas on the theory of the electric light he replied something to the fact that he wasn't a mathematician, but an inventor. Inefficient perhaps but ultimately effective.

Use your mind according to it's unique talents. If you are incapable of doing the math, like myself don't let it stop you. You will eventually find the answer.

Thanks for the equations on the block, Bob.

Guy is a whiz and I read along as best I can. He is trying to teach a person to "fish" rather than just spout the answer. Even if he gave the answer to us, and the equations, would I be able to follow them and understand how he got to the answer? Maybe. Anyway, downloaded those PDF's (THANKS!) but I have small kids and little extra time. GF has one on the way. If he is like anyone else, he will be in the same boat soon.