#18979: avoid Maxima on creation of symbolic matrices
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Reporter: rws | Owner:
Type: defect | Status: needs_work
Priority: major | Milestone: sage-6.9
Component: linear algebra | Resolution:
Keywords: | Merged in:
Authors: Ralf Stephan | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/rws/avoid_maxima_on_creation_of_symbolic_matrices|
75e679c687019c9657188003306bbd08314919a5
Dependencies: | Stopgaps:
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Comment (by rws):
Replying to [comment:5 vdelecroix]:
> You should find a better way to do this test without having to care
whether the input is symbolic. If each ring needs a specialized treatment
it will become a complete nightmare.
Agreed. The easiest way would be `bool(x1!=x2)` to mean
`(x1-x2).is_trivial_zero()` for symbolic `x` and to provide a different
interface for cases requiring simplification/proof. This would have some
rerpercussions in symbolic and will take long to review so...
> In this very particular case of matrices, there is a simpler way to fix
the issue. You can just avoid testing anything.
Will do that.
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Ticket URL: <http://trac.sagemath.org/ticket/18979#comment:6>
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