Have a look over it. Comments/suggestions/corrections all welcome.
Hopefully lots of people will get benefit from this (if they know about it, that is!).
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
A very useful tool for learning.
In mathematics, you don't understand things. You just get used to them.
I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.