#18764: Add glp_exact to Sage's GLPK bindings
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Reporter: mkoeppe | Owner:
Type: enhancement | Status: new
Priority: minor | Milestone: sage-6.8
Component: numerical | Keywords: lp
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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The function glp_exact provides access to an implementation of the simplex
method in exact rational arithmetic (using GMP).
(The only access to data is via double-precision floats, however. It
reconstructs rationals from doubles and provides results as doubles using
the standard API functions of GLPK. Direct access, using GMP rationals,
would be possible through the header file glpssx.h, which is not a public
header as of GLPK 4.55; see http://lists.gnu.org/archive/html/help-
glpk/2007-10/msg00031.html http://lists.gnu.org/archive/html/help-
glpk/2008-06/msg00006.html http://lists.gnu.org/archive/html/help-
glpk/2013-11/msg00019.html)
(On the Sage side, one could reconstruct the rational solution via
#18735.)
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Ticket URL: <http://trac.sagemath.org/ticket/18764>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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