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Eigenvalues, Curvature, and Quadratic Forms


	The curvature of a quadratic form is controlled by the eigenvalues of the matrix . Here is a diagonal matrix and so its eigenvalues are simply the elements on the diagonal.


	Contributed by: Chris Maes

Quadratic Form (Wolfram MathWorld)

Positive Definite Quadratic Form (Wolfram MathWorld)

Inner Product (Wolfram MathWorld)

Hessian (Wolfram MathWorld)

Eigenvalue (Wolfram MathWorld)

"Eigenvalues, Curvature, and Quadratic Forms" from The Wolfram Demonstrations Project
http://demonstrations.wolfram.com/EigenvaluesCurvatureAndQuadraticForms/

Contributed by: Chris Maes

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