ABSTRACT
Compared with earlier chapters in this book, this chapter contains considerably more equations. In fact, it contains most of the math in this entire book. Partly this is because we have broken everything down step by step. If you are less than comfortable with mathematics and equations in general, plan to take your time and to work through each step and try every example and you will do just fine. In most cases, even the most gruesome equations boil down to a small number of actual calculations, many of which you could do by hand.
