#13696: process chained equalities with different signs correctly
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Reporter: dimpase | Owner: ncohen
Type: PLEASE CHANGE | Status: new
Priority: major | Milestone: sage-5.5
Component: linear programming | Keywords:
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies: #12091
Stopgaps: |
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we have to deal with what remained from #12091. At least, report errors
for the inputs like the following:
{{{
sage: b[0] <= 555*b[1] >= 2
sage: b[0] <= 555*b[1] == 2
}}}
which even with #12091 are incorrectly processed
{{{
sage: b[0] <= 555*b[1] >= 2
2 <= x_0 <= 555*x_1
sage: b[0] <= 555*b[1] == 2
555*x_1 == 2
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13696>
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