#12290: Fix the hash of matrix spaces and improve its performance
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Reporter: SimonKing | Owner: jason, was
Type: defect | Status: needs_work
Priority: critical | Milestone: sage-5.0
Component: linear algebra | Keywords: hash matrix space
Work_issues: | Upstream: N/A
Reviewer: | Author: Simon King
Merged: | Dependencies:
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Comment(by SimonKing):
The problem could be fixed by turning matrix spaces into unique parents
(which would be the straight-forward thing to do).
I just asked [http://groups.google.com/group/sage-
devel/browse_thread/thread/958cb2d828daf0c5 sage-devel] for permission to
make matrix spaces unique. Adding a dense and a sparse matrix would not be
a problem for the coercion model.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12290#comment:4>
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