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[Octave-bug-tracker] [bug #41116] Incorrect result for sparse LU factori

From: Marco Caliari
Subject: [Octave-bug-tracker] [bug #41116] Incorrect result for sparse LU factorization
Date: Tue, 14 Jan 2014 13:55:58 +0000
User-agent: Mozilla/5.0 (X11; Linux i686; rv:13.0) Gecko/20100101 Firefox/13.0 
Follow-up Comment #11, bug #41116 (project octave):

What about the controls UMFPACK_ORDERING_GIVEN and UMFPACK_ORDERING_NONE?

Anyway, [LL,UU] = lu(x) with my patch (i.e., with column permutation) behaves
like [LL,UU] = lu(x) in Matlab, which is supposed to work *without* column
permutation. Are we sure that column permutation is completely disabled in
Matlab?

Marco

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