Question:"Degree mode", like my TI-89 has?

Question:"Degree mode", like my TI-89 has?

Maple
Hi, I just bought Maple, and I'm really excited about it. I'm poking around in Maple, trying to get comfortable with it, by entering in a problem from my physics class. In this class, we use SI units, except that we express our angles in degrees. I'm trying to find an easy way to have the trigonometric functions take degree arguments. I tried "with(Units); with(Units[Natural])", and entered an expression this way: "R_x = R*sin(15*deg)", and that almost worked. There were two problems, though: 1. R is apparently a unit in its own right...not *too* much of a problem (I can choose another letter), but annoying. 2. When it displays my expression, it converts to radians: "R_x = sin(1/12*Pi)[[R]]" My goal is to have Maple work exactly like it does "by default", except that if I enter "sin(15)" (or "sin(15*deg)", Maple should know I mean degrees, and not ever show radians onscreen. Basically, I want it to look the same as when I write out my homework. Thanks for any help.
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