 Positive semidefinite matrix (source code)

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= Positive semidefinite matrix

= Positive semidefiniteness
{synonym}

= Positive semidefinite
{synonym}

A real symmetric or complex Hermitian matrix $A$ is positive semidefinite when $x^\dagger Ax\geq0$ for every <vector> $x$, equivalently when all its <eigenvalue>[eigenvalues] are nonnegative.

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