On Aug 28, 2:34 am, Nils Bruin <[EMAIL PROTECTED]> wrote:
> Probably something for upstream. Serious error in determinant of an
> integer matrix. Sometimes, 0 is returned for a full rank matrix. This
> is accompanied by some printed error warning, but no exception is
> raised. A bug has been filed:http://sagetrac.org/sage_trac/ticket/498
> but given that this actually makes sage return wrong answers, I
> thought some extra attention might be due.
[I am CCing Clement Pernet directly (despite him being subscribed) and
adjust the subject to catch his attention. Clement, if you were
following this anyway: my bad ;)]
Hello Nils,
a quick grep revealed that this is very likely a problem in LinBox,
specifically somewhere in
linbox/algorithms/rational-reconstruction.h
If LinBox returns an error and if Sage doesn't catch that error I
cannot tell you.
Cheers,
Michael
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