This picture at the bottom was really helpful to me for understanding the differences between all these matrix properties. Seems that positive definite means that the global minimum is a point, positive semi means it is a line, and indefinite has no solution.
This picture at the bottom was really helpful to me for understanding the differences between all these matrix properties. Seems that positive definite means that the global minimum is a point, positive semi means it is a line, and indefinite has no solution.
@raymondx Correct!