#17663: clean sparse matrices
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Reporter: | Owner:
vdelecroix | Status: needs_review
Type: | Milestone: sage-6.5
enhancement | Resolution:
Priority: major | Merged in:
Component: | Reviewers: Martin von Gagern
linear algebra | Work issues:
Keywords: | Commit:
Authors: | b52ad708d1190c4b5de75bcbafd4f59c13a5c84b
Vincent Delecroix | Stopgaps:
Report Upstream: N/A |
Branch: |
public/17663 |
Dependencies: |
#17658 |
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Comment (by gagern):
The nonzero doctest has me confused:
{{{
sage: bool(m)
False
sage: m.is_zero() # indirect doctest
True
}}}
Why is the first expected to be false? Shouldn't a zero matrix evaluate as
zero? Isn't one invariant the fact that all entries in the dict must be
non-zero?
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Ticket URL: <http://trac.sagemath.org/ticket/17663#comment:13>
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