Inverse Transformations
x = r cos(?), and y = r sin(?)
Example: If (r,?) = (5 bl, 37o), what do we get for (x,y) ?
x = r cos(?) = 5 bl * cos(37o) = 4 bl.
y = r sin(?) = 5 bl * sin(37o) = 3 bl.
[Note that this is the (x,y) we started with to get the (r,?) = (5 bl, 37o).]