Opened 4 years ago

Last modified 4 years ago

## #20331 new enhancement

# MIPVariable misreports its dimension (always 1) — at Initial Version

Reported by: | mkoeppe | Owned by: | |
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Priority: | major | Milestone: | sage-7.2 |

Component: | numerical | Keywords: | lp |

Cc: | dimpase, vdelecroix, jdemeyer | Merged in: | |

Authors: | Reviewers: | ||

Report Upstream: | N/A | Work issues: | |

Branch: | Commit: | ||

Dependencies: | Stopgaps: |

### Description

sage: p = MixedIntegerLinearProgram(solver="glpk") sage: bar = p.new_variable(name="bar") sage: bar MIPVariable of dimension 1 sage: bar[0] x_0 sage: bar MIPVariable of dimension 1 sage: bar[1] x_1 sage: bar MIPVariable of dimension 1 sage: p.solve() 0.0 sage: bar.values() [x_0, x_1] sage: p.get p.get_backend p.get_min p.get_relative_objective_gap p.get_max p.get_objective_value p.get_values sage: p.get_values(bar) {0: 0.0, 1: 0.0}

I think the print method should also print some useful information, such as the name of the variable.

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