This is an experimental meetup to find people willing to work through the book "Divine Proportions: Rational Trigonometry to Universal Geometry". (See "http://wildegg.com/" for blurbs and FAQs).
This is Norman J. Wildberger's textbook describing his discovery of Rational Trigonometry, an approach to trig that avoids SIN and COS and all transcendental functions. You may want to check at "Wild Trig" videos on YouTube to decide if you are interested in this approach. I've started the book, and found it an excellent refresher of basic geometry, in addition to being an exciting simplification of traditional trig. I have a PhD in computer science, and I think I can lead lectures on the subject, although I have already had difficulty with some of the exercises in the book.

Prof. Wildberger describes the book as elementary but difficult for all but the most dilligent and motivated of High School students, and I tend to agree. It is clear, but does assume you are familiar with the "language of mathematics" already.

Ideally we would meet weekly or monthly to work through all of the exercises in the book, and provide mutual support for each other.

If anyone is terribly motivated, we could also start a "Rational Trigonometry Workbook" which would be aimed at giving practical exercises in trigonometry using rational trig and comparing to solutions with traditional trig. This would be a somewhat low-brow companion to Prof. Wildberger's book, which is aimed more at theory than practice.

If nobody up by, say, March, I will disband this group. If someone does sign up (or I can convince any of my buddies to do so), we can meet either at my house or at a restaurant to discuss.