#18979: avoid Maxima on creation of symbolic matrices
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Reporter: rws | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.9
Component: linear algebra | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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People have no idea what they ask for when they write `if ex != 0:` with
`ex` possibly(!) a symbolic expression. E.g. this happens to trigger in
`matrix/*` the full blown procedure of starting Maxima with its limited
deductive armament trying to prove that `ex` is nonzero. This when all was
wanted was that it not be a "numeric" zero.
This ticket replaces the two instances in `matrix/` where such behaviour
was triggered in doctests. Speedups are expected.
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Ticket URL: <http://trac.sagemath.org/ticket/18979>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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