#10752: Matrix pivots are cached, should be immutable
------------------------------+---------------------------------------------
Reporter: rbeezer | Owner: jason, was
Type: defect | Status: positive_review
Priority: minor | Milestone: sage-4.7
Component: linear algebra | Keywords: matrix pivots
Author: John Palmieri | Upstream: N/A
Reviewer: Rob Beezer | Merged:
Work_issues: |
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Changes (by rbeezer):
* status: needs_review => positive_review
* reviewer: => Rob Beezer
Comment:
Replying to [comment:8 jhpalmieri]:
> try doing {{{a = tuple(range(1000)); timeit('tuple(a)')}}}.)
{{{
625 loops, best of 3: 193 ns per loop
}}}
Looks really good, John. Passes long tests and I also did a survey on the
patched code with {{{search_src('cache', 'pivot')}}} and didn't see
anything that was missed (including row pivots).
Should improve the reliability of matrix code, or at least lessen the
potential for new bugs. Positive review.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10752#comment:9>
Sage <http://www.sagemath.org>
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