Bravo. A very nice article comparing and contrasting standard trig methods and geometric algebra methods. And as a bonus, it compares both with Dr. Wildberger

Bravo. A very nice article comparing and contrasting standard trig methods and geometric algebra methods. And as a bonus, it compares both with Dr. Wildberger's Rational Trigonometry. (Side note: I've known a few Australian mathematicians who embrace some very non-standard methods in mathematics, and I think it's great. We need people to shake up our thinking bout Math every once in a while.) A very nice piece for some relaxing weekend recreational math.