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 KASH3 Reference Manual
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Function

IsNegativeSemiDefinite ( elt-alg^mat X ) -> elt-alg^boo

Description

True iff the symmetric matrix X over Z or Q is negative semi-definite.

Examples

x_ma := MatrixAlgebra(Q,3);; x_one := One(x_ma); IsNegativeSemiDefinite(x_one); IsNegativeSemiDefinite(-x_one);
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