inverse symmetric matrix

"Yasser H. Abdel-Haleem" <[email protected]>
Newsgroups gmane.comp.lib.mtl.devel
Message-ID <[email protected]>
Hi,
I would like to get the inverse of a symmetric matrix. Currently, I copy
it to a dense matrix and get the inverse using LU inverse.  However, I
search a very fast method to do that directly without this intermediate
step. Can any one suggest a solution?
Thanks,
Yasser

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