#20664: MixedIntegerLinearProgram/MIPVariable API cleanup
---------------------------+----------------------------
   Reporter:  mkoeppe      |            Owner:
       Type:  enhancement  |           Status:  new
   Priority:  major        |        Milestone:  sage-7.3
  Component:  numerical    |         Keywords:  lp
  Merged in:               |          Authors:
  Reviewers:               |  Report Upstream:  N/A
Work issues:               |           Branch:
     Commit:               |     Dependencies:  #20462
   Stopgaps:               |
---------------------------+----------------------------
 Follow-up on #20462:

  - Why does a `MIPVariable` only have `set_max`, but no `get_max`?

  - Why does `MixedIntegerLinearProgram.set_max` delegate to a
 `MIPVariable` method of the same name, when  other
 `MixedIntegerLinearProgram` methods such as `set_integer` etc. just do
 everything directly, and no corresponding `MIPVariable` methods exist?

  - Actually these things should properly be referred to as `lower_bound`
 and `upper_bound` rather than `min` and `max`. Some deprecation fun to be
 had.

  - Why is there no way to query the values of the components of the
 `_default_mipvariable`?

--
Ticket URL: <http://trac.sagemath.org/ticket/20664>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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