#17958: implement declare_var, deprecate (None)var
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Reporter: rws | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.6
Component: symbolics | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by dimpase):
Replying to [comment:61 was]:
> Replying to [comment:60 dimpase]:
> > Anyhow, I don't understand what `SR` is. It looks as if it is no more
than a hack provided by Sage, no more than that. Documentation says
nothing about it. Perhaps before discussing `var()`, one should provide a
definition. So far I don't understand the difference between symbolic
variables and polynomial ring variables (except that the latter somehow
don't work in `solve()`).
>
> Calculus.
I don't think it's precise enough; for myself I understand `SR` as
sequences of terms subject to certain rewriting rules, but neither what
the term are, nor what the rewriting rules are, is not stated anywhere
except in the source code and in examples...
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Ticket URL: <http://trac.sagemath.org/ticket/17958#comment:65>
Sage <http://www.sagemath.org>
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