Question

Matrices are positive definite or negative definite .

Answer 1

Step-by-step explanation:

positive definite .

matrices are positive definite.

Answer 2

Answer:

A matrix is positive definite if it's symmetric and all its eigenvalues are positive. The thing is, there are a lot of other equivalent ways to define a positive definite matrix. One equivalent definition can be derived using the fact that for a symmetric matrix the signs of the pivots are the signs of the eigenvalues.

Step-by-step explanation: