#12208: LU decomposition gives wrong results on cyclotomic matrices (MacOSX-
specific)
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Reporter: dimpase | Owner: jason, was
Type: defect | Status: positive_review
Priority: major | Milestone: sage-4.8
Component: linear algebra | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author: Rob Beezer
Merged: | Dependencies:
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Changes (by dimpase):
* status: needs_review => positive_review
Comment:
Replying to [comment:12 rbeezer]:
> Patch takes absolute value of initial maximum column value before
searching for a bigger entry, thus creating objects of the same type for
subsequent comparisons.
>
> (a) Used the {{{abs()}}} function, since that was used in the prior test
for its use being possible.
>
> (b) Added Dima's character table example as a test in the docstring.
>
> Passes tests in sage/matrix on 4.8.alpha3 on Linux.
OK, works on MacOSX too. Good.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12208#comment:13>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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