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Results tagged with numerical-linear-algebra
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user 9833
{numerical-linear-algebra} questions involving algorithms for linear algebra computations.
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Square root of a large sparse symmetric positive definite matrix
I completely agree with fedja: there is a nice method here (which, unfortunately, does not always work well). If you know bounds for the spectrum of $A$, say $0<a<\lambda<b$, then you (sometimes) can …
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