I try to calculate a distance in meter, given the rad values. I use the follwing formula, which is really easy.
0.004 x (m)
--------- = ----------
2*pi y (rad)
If I want to know which x(m) corresponds to 4*pi the formula becomes
This is a result I would expect, but putting the same formula into matlab or any calculator results in
Next to a missing magnitude it is not 100% correct as well. I think one reason is limited digits of pi, but why is a magnitude missing?
I am sorry for such a trivia question, but maybe someone could give me a hint. I propably think in a wrong direction.