Practical trigonometry.

Here’s hoping that you took your middle school math teacher seriously when he1 told you “listen, kids, trigonometry matters” and “mark my words you WILL use trig in real life someday” in the face of the some of the more willfully ignorant kids in class, like chuckling Chuckie and his churlishly spear-chucking chums. Of course, Mr. […]