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  • Committer: Bazaar Package Importer
  • Author(s): Rafael Laboissiere
  • Date: 2009-02-24 11:08:12 UTC
  • mfrom: (7.2.2 sid)
  • Revision ID: james.westby@ubuntu.com-20090224110812-hawvr3dh5kjbvlae
debian/control: Add an epoch to the version number of
libsuitesparse-3.0.2 in replaces/conflicts for libcolamd-3.2.0
(really, closes: #516725)

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{\tt U} with a structurally zero-free diagonal.
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Unless the matrix ill-conditioned or
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poorly scaled, factorizing {\tt A'} in this case will guarantee that both
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factors will have zero-free diagonals.  Note that there is no guarantee
 
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factors will have zero-free diagonals (in the structural sense; they may
 
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be numerically zero).  Note that there is no guarantee
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as to the size of the diagonal entries of {\tt U}; UMFPACK does not do a
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rank-revealing factorization.  Here's how you can factorize {\tt A'}
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and get the factors of {\tt A} instead: