Opened 9 years ago

Last modified 6 years ago

#14540 closed defect

MILP constraints are silently misunderstood — at Initial Version

Reported by: ncohen Owned by: ncohen
Priority: major Milestone: sage-7.2
Component: linear programming Keywords:
Cc: vbraun, dimpase, mkoeppe, vdelecroix, tscrim Merged in:
Authors: Reviewers:
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

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sage: p = MixedIntegerLinearProgram()
sage: b = p.new_variable()
sage: p.add_constraint(int(1) <= b[0] + b[1] + b[2] <= int(2))
  x_0 + x_1 + x_2 <= 2.0
  x_0 is a continuous variable (min=0.0, max=+oo)
  x_1 is a continuous variable (min=0.0, max=+oo)
  x_2 is a continuous variable (min=0.0, max=+oo)

The code above works on the command-line. In a script, you can do without the int().


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