#11274: Cholesky matrix decomposition breaks over the rationals
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Reporter: rbeezer | Owner: jason, was
Type: defect | Status: positive_review
Priority: minor | Milestone: sage-5.1
Component: linear algebra | Resolution:
Keywords: sd40.5 | Work issues:
Report Upstream: N/A | Reviewers: Dan Drake
Authors: Rob Beezer | Merged in:
Dependencies: #12966, #13018 | Stopgaps:
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Changes (by ddrake):
* status: needs_review => positive_review
* reviewer: => Dan Drake
Comment:
The exact Cholesky decomposition looks good. The only thing we might want
is to add in the example from the description of the ticket (which now
works) but the documentation is quite thorough, so it seems very unlikely
that the little 2x2 case will fail with the tests we have.
Runtime for random matrices over the rationals is fine; 100x100 matrices
finish in about 6.2 seconds on my machine.
Positive review to trac_11274-exact-cholesky-v1.patch.
Apply trac_11274-cache-indefinite-factors-v1.patch and
trac_11274-exact-cholesky-v1.patch
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11274#comment:4>
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