Every ellipse can be encoded by the matrix A (and the geometric concept is generalized to arbitrary dimensions).
Not sure I follow the physics analogy though. A unit ball is a specific case of an ellipse where A is the identity matrix. Perhaps the entries of A would be the atoms in this case as they uniquely shape it?
Not sure I follow the physics analogy though. A unit ball is a specific case of an ellipse where A is the identity matrix. Perhaps the entries of A would be the atoms in this case as they uniquely shape it?