#11259: LU decomposition for matrices with exact base rings
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Reporter: rbeezer | Owner: jason, was
Type: enhancement | Status: needs_work
Priority: minor | Milestone: sage-4.7.2
Component: linear algebra | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author: Rob Beezer
Merged: | Dependencies:
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Comment(by rbeezer):
Replying to [comment:5 mraum]:
> 2. the caching is utterly inefficient, when it comes to 'auto'. In case
you deal with 'auto' pivots, would you mind to first convert it to either
of the two normal values and than call fetch()? This won't cost much time,
but it can save space and also prevents you from computing the same thing
twice.
OK, I see now. Pretty bad. ;-) I am thinking to replace 'auto' by None,
and early on decide which strategy to employ, then check the cache.
Thanks for catching this one.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11259#comment:8>
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