#12834: Modify subs so that it can accept multiple equations just like subs_expr
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Reporter: JoalHeagney | Owner: AlexGhitza
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-5.0
Component: algebra | Resolution:
Keywords: subs algebra solving | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Michael Orlitzky | Merged in:
Dependencies: | Stopgaps:
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Changes (by mjo):
* status: new => needs_review
Comment:
Some Cython limitations made this more of an event than it had to be, but
the patch implements the requested feature and Nils' suggestions from
comment 1.
When you pass `subs()` a list, it's processed recursively, which has the
nice side effect of allowing you to call `solve()` and pass the result to
`subs()` without caring about the form of the return value.
The new `subs()` throws an error on conflicting substitutions... nobody
reads the documentation unless they have to so I think it's better to
alert the user that he's likely making a mistake.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12834#comment:3>
Sage <http://www.sagemath.org>
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