#18734: Construct an interactive_simplex_method.LPDictionary from a
MixedIntegerLinearProgram
-------------------------------------+-------------------------------------
Reporter: mkoeppe | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-7.2
Component: numerical | Resolution:
Keywords: lp | Merged in:
Authors: Aedi Wang, | Reviewers:
Matthias Koeppe | Work issues:
Report Upstream: N/A | Commit:
Branch: | b17dd3a6524557b668870c60820c49443bdf44e6
u/mkoeppe/construct_an_interactive_simplex_method_lpdictionary_from_a_mixedintegerlinearprogram|
Stopgaps:
Dependencies: #18685, #18732 |
-------------------------------------+-------------------------------------
Comment (by dimpase):
you don't seem to need `slack_names` if `form is None`, why would you
always create them?
{{{
+ # Construct slack names
+ slack_names = [format(back_end.row_name(i), 'w', i) for i in
range(back_end.nrows())]
+
+ A = coef_matrix
+ b = upper_bound_vector
+ c = objective_coefs_vector
+ x = var_names
+ w = slack_names
+
+ if form is None:
+ from sage.numerical.interactive_simplex_method import
InteractiveLPProblem
+ return InteractiveLPProblem(A, b, c, x), None
+ elif form == 'standard' or form == 'std':
+ from sage.numerical.interactive_simplex_method import
InteractiveLPProblemStandardForm
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/18734#comment:46>
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