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eigenvalues in mma


hi!

does anyone out there know something about the algorithm 
mathematica uses to calculate the eigenvalues of a matrix?
i visited the wr-web-site but the pages with those "behind"-
informations are still under construction *sigh*.

is there a package which provides faster eigenvalue/eigenvector-
functions or some for sparse matrices (matrices with only
some diagonals and the edges occupied) ?

tnx!



diangi at informatik.uni-mainz.de (angelika spitzner)


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