I want to transform cartesian space to polar space to draw an ellipse.
For circle the polar space is $(r,\theta)$ and $(x,y)$ being cartesian space. How do we represent polar space for an ellipse? $$x=i \cos (t) \cos (\theta)-j \sin(t) \sin (\theta)$$
$$y=i \sin (t) \cos (\theta)+j \cos (t) \sin (\theta) $$
in the formula above is ellipse parametrized by $(i,j,t,\theta)$ as this doesnt look like polar space?