Simple Trig Question

try asin

edit: btw, it will return the angle in radians... if you want degrees, multiple the answer by 180/pi...

Try "asin()". It's short for acrsin, which is a common term for sin^-1.

Well, that was interesting. I tried using asin() and comparing the original number to the new number (with a tolerance), and it came out not equal! Then I displayed the numbers in message boxes and they were equal. Thanks for clearing that up for me!

Note that sin^-1 doesn't mean that you raise the result to the power -1, but it means it's the inverse function.

Lode: Tell that to my high school substitute math teacher. He actually wrote sin^-1 theta = 1/sin theta. We all flipped, of course (honors calc class = 30 kids who think they know everythign). It was an ugly scene. It came out that he was somehow differentiating between arcsin(theta) = (1/sin) (theta) and csc(theta) = 1/(sin theta), but that's just the screwiest damn thing I ever saw. The dude just made it worse by causing a whole scene with high schoolers; I think he got let go because of it.