What can I say? There is about 400 years worth of science in this book, a book I bought for pocket change. I do, although, recommend taking differential/integral/vector/multivariable calculus before hand. This book pretty much requires a knowledge of those fields. But, if you're familiar with most calculus, I recommend this book 1) for the price and 2) for a quick reference, especially if you're programming these types of forces in a simulation. Online references are always sufficient, of course, but this book has everything laid out in well ordered fashion.