Hi,
I'm learning Trigonometry so that I can make graphical programs on my computer. I have a basic understanding of it already and know how to make things like analogue clocks (on the computer of course) etc. I'm really learning it so that I can start to involve that extra dimension (Z) and make 3D applications.

Anyhow, here's my question. I don't understand why I must convert degrees to radians. Don't get me wrong I know how to do it but I have just always wondered why I have to do it. Why doesn't using degrees work when programming graphical applications?

Thanks.