Matthias Köppe's Mathematical Software and Data
(see also GitHub)
 A program to compute the Primitive Partition
Identities (19981999, 2002); now part of 4ti2.
 A table of the Primitive Partition Identities up to
a largest part of 27 (1999)
 Tables of the irreducible
solutions to cyclic group equations (with M. Jach and
R. Weismantel, 2004)
 CPLEXglue,
an interface that makes the ILOG CPLEX Callable Library
accessible from Guile (a Scheme implementation) and Allegro Common
Lisp (with U.U. Haus, 2001)
 CDDglue,
an interface that makes Komei Fukuda's cddlib available from the
Scheme implementation Guile (20042005)
 GYWOPT, an interactive
system for exploring primal reformulations of integer linear
programs, containing an implementation of the Integral Basis
Method (with U.U. Haus, 20002005)
 LattE macchiato, an improved version of
LattE, containing new irrational primal decomposition
algorithms for counting lattice points in polytopes, and more
(20062010); superseded by LattE integrale.
 4ti2, a software package for
algebraic, geometric and combinatorial problems on linear spaces
(with R. Hemmecke, R. Hemmecke, P. Malkin,
M. Walter, 2008)
 Tables of
matroids
and the Ehrhart polynomials and h^{*}vectors of
their base polytopes (with J. De Loera and
D. Haws, 2008)
 Maple programs for
integrating polynomials over simplices (with V. Baldoni,
N. Berline, J. De Loera, and M. Vergne, 20082009); superseded
by LattE integrale.
 LattE integrale, an
improved version of LattE macchiato, which adds integration and
volume computation methods, and computes the highest coefficients of
weighted Ehrhart quasipolynomials (with V. Baldoni, N. Berline,
J. De Loera, B. Dutra, M. Vergne and several
contributing students, 2006)

Sage
program for computation and experimentation with the
1row Gomoryâ€“Johnson infinite group problem (with
C. Y. Hong and Y. Zhou, 2014)
Matthias Koeppe