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Hessian Matrix Determinant and Convex/Concave I have a function which has a Hessian Matrix of: -2 0 0 0 -16 10 0 10 -4 Can anyone...

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Advance Math

Hessian Matrix Determinant and Convex/Concave

I have a function which has a Hessian Matrix of:

-200
0-1610
010-4

Can anyone explain why this is neither a positive nor a negativedefinite?

And could you please explain 2*2 and 3*3 Hessian's rule ofdetermining positive/negative definite? Thank you.

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