#20755: Bug in solve due to a bug in symbolic_expression_from_maxima_string
---------------------------------+------------------------
Reporter: bruno | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-7.3
Component: symbolics | Resolution:
Keywords: maxima, solve | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
---------------------------------+------------------------
Comment (by nbruin):
Well, `multiplicities` is a system variable. See
[http://maxima.sourceforge.net/docs/manual/maxima_20.html]. Who knows when
it gets updated? In particular, the reconstruction of symbolic expressions
from strings might be calling into maxima again.
The quick fix is to get the correct value of `multiplicities` out as soon
as we can, before conversion back.
In the longer run, it would be preferable to do the conversion while
avoiding strings altogether. See `sr_sum` and `sr_limit` etc. for examples
how one can use `sr_to_max` and `max_to_sr` to convert.
--
Ticket URL: <http://trac.sagemath.org/ticket/20755#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at https://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/d/optout.
