#12809: Solve does not give consistent results when a dummy variable is involved
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Reporter: afleckenstein | Owner: burcin
Type: defect | Status: new
Priority: minor | Milestone: sage-5.0
Component: symbolics | Resolution:
Keywords: solve | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by nbruin):
Replying to [comment:6 mjo]:
> I implemented `MaximaLibElement.nicedummies()`, but it seems that once
you make the round-trip through sage, the information that zXX is a dummy
is lost
This is mainly for documentation and sufficient cross linking. In
[https://groups.google.com/group/sage-devel/msg/62404b9d395cce94?hl=en
this sage-devel thread] the cause is described: maxima's `%z2` gets
translated to `z2` in sage and then to `z2` in maxima, so the variables
get renamed.
See `nicedummies` in maxima's `share/contrib/topoly.lisp` to see how
"dummies" get recognized (it's a property hanging off the symbol, not the
name of the symbol)
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12809#comment:7>
Sage <http://www.sagemath.org>
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