Anybody out there have a good acronym, or system for remembering the values of the trig functions at the special angles(e.g. $\displaystyle 0,\frac{\pi}{6},\frac{\pi}{4},\frac{\pi}{3},\frac{ \pi}{2}.....)$ ? I'v got a test coming up that's being timed, so I can't be reproving them while taking the test.