Obligatory rant that tau is better than pi. Tau (2 * pi) is a better constant. Especially for teaching people trigonometry. It makes radians so much more intui

Obligatory rant that tau is better than pi. Tau (2 * pi) is a better constant. Especially for teaching people trigonometry. It makes radians so much more intuitive (90 degree angle becomes 1/4th tau radians). In general, mathematics characterizes circles by their radius, not their diameter. Tau codifies this practice by giving us the relation between a circles radius, and its circumference. This isn't a change that will make academic mathematics better. Its a change that will make high-school mathematics better. If anything, that makes it more important. /rant