#20303: Fixes for add_variables in CVXOPT, PPL, GLPK MIP backends and
add_linear_constraints in CVXOPT
-------------------------------------+-------------------------------------
Reporter: mkoeppe | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-7.2
Component: numerical | Resolution:
Keywords: lp, CVXOPT, PPL, | Merged in:
GLPK | Reviewers:
Authors: Matthias Koeppe | Work issues:
Report Upstream: N/A | Commit:
Branch: | e47b608c20f5bc1157e15fd796e85e8ce0c86833
u/mkoeppe/fixes_for_the_cvxopt_mip_backend| Stopgaps:
Dependencies: |
-------------------------------------+-------------------------------------
Description changed by mkoeppe:
Old description:
> The `add_variables` method had defects for the CVXOPT, PPL, GLPK.
> Also, `add_linear_constraints` had a defect for CVXOPT.
> See new tests added in this ticket.
>
> I first noticed it with the CVXOPT backend. Then, by copying the same
> doctests to the other doctests, I found more errors in PPL, GLPK
> backends.
> (See #20302 for a discussion regarding doctests for the backends -- there
> should be a better way than relying on copy-paste discipline.)
>
> Note, I have copied the doctests to the CPLEX or Gurobi backends but am
> currently not able to run them.
New description:
The `add_variables` method had defects for the CVXOPT, PPL, GLPK.
Also, `add_linear_constraints` had a defect for CVXOPT.
See new tests added in this ticket.
I first noticed it with the CVXOPT backend. Then, by copying the same
doctests to the other doctests, I found more errors in the PPL, GLPK
backends.
(See #20302 for a discussion regarding doctests for the backends -- there
should be a better way than relying on copy-paste discipline.)
Note, I have copied the doctests to the CPLEX and Gurobi backends but am
currently not able to run them.
--
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Ticket URL: <http://trac.sagemath.org/ticket/20303#comment:11>
Sage <http://www.sagemath.org>
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