#10341: make MIP backend interface more Python-ic
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Reporter: malb | Owner: ncohen
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.6.1
Component: linear programming | Keywords: LP, MIP
Author: Martin Albrecht | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Sage 4.6.1 will contain a new set of backend classes for mixed integer
programming, which will make it easier to write interfaces for other
solvers. There has been some off-list discussion about this interface and
the follow changes were agreed upon:
* :func: `add_linear_constraint` should allow ``lb`` and ``ub`` instead
of direction and one bound, it's more expressive.
* :func:`add_variable` should return the index of the newly created
variable instead of the next index.
* change :func:`add_linear_constraint` to accept any iterable of the
form`` [(c,v) ...]``
* ``min`` and ``max`` should be lower bound (or ``lb``) and upper bound
(or ``ub``) to conform to MIP conventions
* allow parameters in :func:`add_variable`
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10341>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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