Book 2 section "Orienting Points on The Plane" simplification #1204
Description
This section derives the formulas for the scalar values α and β. The derivation for these values is more detailed that similar other sections in the book, and on review I think it would improve things to cover the concepts and usage of these values, along with their formulas, and put the derivation in a section on its own, with guidance to the reader that they can skip this if they're not interested.