#20433: InteractiveLPBackend: Implement set_verbosity
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Reporter: mkoeppe | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-7.2
Component: numerical | Resolution:
Keywords: lp | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by mkoeppe):
Replying to [comment:5 novoselt]:
> In that case you actually want things to be printed on every step, not
in an assembled form.
Yes.
> I would be also curious what can possibly go wrong as long as you stay
with exact rings - theory suggests that simplex method will terminate
sooner or later ;-)
Well, it could be cycling, unless your code implements a non-cycling pivot
rule (I didn't look).
It could actually be a nice exercise to implement the lexicographic
simplex method by allowing the right-hand-side values to come from an
ordered module over the base ring.
> With inexact rings everything can go wrong in this backend and that's
more of a feature.
Probably the code should signal an error or warning when a problem is set
up with an inexact field...
--
Ticket URL: <http://trac.sagemath.org/ticket/20433#comment:6>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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