So I have a few different calculators I use. I am currently in a Calculus 1 and Physics 1 course. Both for engineers. As am example of what I am trying to explain, such as my physics HW It asked me to calculate the magnitude of the Vectors A+B+C. I do so and It worked fine, I did this is radians, But then it asked me for the degrees of the added vectors and I gave it the answer but it said i was wrong. Now my calculation were right, all except I think i should have been in degree's rather than radians. When i redid all the math in degrees the degrees section was now correct. So I am looking for some advice on knowing which to use, as I have been told by my calc professors that Degree's is Barbaric or something to that nature. Thank you.