I need to find unit normal and tangent vectors for an ellipse with major axis ( ) of length and minor axis ( ) of length .
My initial guesses are
and
These are orthogonal, but lead to incorrect results later so I suspect they're wrong.
Anyone?
I need to find unit normal and tangent vectors for an ellipse with major axis ( ) of length and minor axis ( ) of length .
My initial guesses are
and
These are orthogonal, but lead to incorrect results later so I suspect they're wrong.
Anyone?