#7392: RDF/CDF matrices should call scipy for rank
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Reporter: jason | Owner: was
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-4.6.2
Component: linear algebra | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by rbeezer):
As a precursor to computing rank, I've written a short routine to get
singular values and conveniently work with deciding the cutoff for zero
values. At #10802. I'll get to this ticket
next.
I think a QR decomposition can be less expensive to compute, but a bit
less reliable. And I've got good advice on how to make an automated
decision on "zero" entries with the SVD.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7392#comment:3>
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