I read that "sine is the orthogonal projection of the unit circle". I know othogonal is another way of saying perpendicular but I still can't quite grasp what is going on here. Can anyone help?

Thanks!

-Andy-

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- Apr 27th 2009, 01:15 PMTheBerkeleyBosssine is the orthogonal projection of the unit circle?
I read that "sine is the orthogonal projection of the unit circle". I know othogonal is another way of saying perpendicular but I still can't quite grasp what is going on here. Can anyone help?

Thanks!

-Andy- - Apr 27th 2009, 01:25 PMMouseman
I guess that's a fancy way of saying that sine goes on the y axis and cos on the x axis. Sin 90 =1 etc.