2 date: Tue Jun 29 13:18:52 CEST 2010
4 - use isl for argument parsing
5 - minor compilation fixes
6 - drop bernstein library in favor of isl implementation
7 - drop Omega calculator
8 - the Omega submodule is no longer compiled by default
9 - improved isl based calculator
10 - drop barvinok_enumerate_pip_with_options
13 date: Wed Mar 10 18:10:33 CET 2010
15 - add isl interface and new isl based calculator
16 - barvinok_enumerate now returns NaN on infinite problems
17 - minor compilation and bug fixes
18 - support newer versions of TOPCOM
21 date: Wed Jul 22 15:14:01 CEST 2009
23 - new version of Laurent expansion based exact summation
24 - minor compilation and bug fixes
25 - add semigroup_holes application
26 - add vector_partition_chambers application
29 date: Thu Oct 16 21:56:01 CEST 2008
31 - add omega as submodule
32 - minor compilation and bug fixes
35 date: Sun May 4 23:42:49 CEST 2008
37 - add Parker's library for DFA based counting
38 - support nested sums based exact summation
39 - support Laurent expansion based exact summation
40 - handle equalities and factors in summation
41 - support range propagation for computing bounds
42 - support computation of exact bound through iteration
43 - fix conversion from GiNaC's numeric to Values
46 date: Wed Jan 16 23:45:17 CET 2008
48 - support computation of generating functions in barvinok_enumerate_e
49 - support polymake 2.3
50 - support GiNaC 1.3.8 and newer
51 - support summation using Bernoulli formula
52 - add and use zsolve from 4ti2 for computing Hilbert bases of cones
53 - support use of piplib for solving LPs
54 - add polyhedron_integer_hull and polytope_minimize
55 - add polytope_lattice_width for computing the lattice widths of polytopes
58 date: Tue Sep 11 22:02:22 CEST 2007
60 - add PolyLib and piplib as submodules
61 - remove compatibility with old versions of PolyLib and piplib
62 - support use of piplib for basis reduction
63 - support summation using local Euler-Maclaurin formula for 2D polytopes
64 - support TOPCOM based chamber decompositions
65 - simplify primal decomposition
68 date: Sat Jun 30 23:37:31 CEST 2007
70 - support exponential (Todd) substitution for non-parametric problems
71 - support primal and stopped decomposition on parametric problems
72 - support nested sums polynomial approximation of quasi-polynomials
73 - add barvinok_summate for summating a polynomial over a polytope
74 - speed improvements in barvinok_count and polyhedron_sample
77 date: Sat Apr 28 20:10:35 CEST 2007
79 - use arpg for argument parsing in most commands
81 support polynomial approximations of quasi-polynomials, including
82 volume computation, Meister's method and replacing fractional parts
84 - add barvinok_maximize for computing upper (and lower) bounds
85 - support non-parametric primal and stopped Barvinok decomposition
86 - periodic number representation now run-time configurable
87 - drop support for ancient PolyLib versions
88 - simplified partitioning of chamber complex
89 - add evalue_eval, an exact version of copmute_evalue
90 - improved handling of large generating functions
91 - integrate barvinok_series functionality into barvinok_enumerate
92 - support use of cdd for solving LPs in basis reduction
93 - initial support for computing bounds over quasi-polynomials
94 - recursive Bernstein expansion
95 - corrections and improvements of lexmin
96 - optionally print quasi-polynomial as list of polynomials
97 - add some documentation
100 date: Tue Oct 31 23:15:15 CET 2006
102 - include bernstein library with interface to barvinok and occ
104 - barvinok_count now only returns -1 for unbounded polyhedra with integer points
105 - preliminary implementation of projection via neighborhood complexes
106 - implement generalized basis reduction
107 - add polyhedron_sample
110 - some internal reorganization
111 - some gen_fun clean-ups and optimizations
112 - plug some memory leaks
113 - fix some corner cases
114 - shared libraries are no longer built by default
115 - introduce barvinok_options to pass to functions instead of just MaxRays
116 - use same LLL reduction parameter that LattE uses
117 - add some documentation
120 date: Thu Jun 22 20:49:11 CEST 2006
122 - add some documentation
123 - add barvinok_ehrhart
124 - add h_star_vector polymake client
125 - fix some corner cases
126 - more experimental support for enumerating unions of polytopes
127 - rename cdd2polylib.pl to latte2polylib.pl
130 date: Wed Feb 22 12:01:23 CET 2006
132 - fix PIP-based reduction by removing some code and assuming a recent PIP
133 - some memory leaks plugged
134 - optionally use Omega as a preprocessor in barvinok_enumerate_e
135 - integrate verif_ehrhart_e into barvinok_enumerate_e
136 - barvinok_series handles more problem with equalities
137 - add gen_fun::Hadamard_product
138 - experimental support for enumerating unions of polytopes
141 date: Fri Jan 20 22:14:44 CET 2006
143 - include Omega Calculator interface occ
144 - print_enode creates parameter names if none are provided
145 - only use PIP to project out some variables
146 - some header file fixes
150 date: Thu Sep 15 11:27:19 CEST 2005
152 - factor polyhedra into independent parts before enumeration
153 - make "random vector" specialization more robust
154 - speed up verif_ehrhart by only checking inside the context
155 - remove {Param,}Polyhedron_Reduce
156 - rename triangularize_cone to triangulate_cone
157 - generalize computation of lexmin/max using PIP
158 - compute the number of lexsmaller elements using PolyLib's LexSmaller
161 date: Mon Aug 1 12:23:50 CEST 2005
163 - fix some configuration problems
164 - include minimal polymake client
167 date: Thu Jun 30 12:10:29 CEST 2005
169 - implement "breadth-first" incremental specialization
170 - implement non-incremental version for series computation
171 - make non-incremental specialization the default again
172 - check for bad PolyLib version at runtime
173 - compiles on Windows (mingw32)
175 - allow crosscompilation
176 - compute the coefficients of an Ehrhart series
177 - fix conversion of PIP output to polyhedra
178 - allow direct verification of Ehrhart series
181 date: Sun Dec 12 23:00:40 CET 2004
183 - export Polyhedron_Project
184 - allow verification of step-functions computed from Ehrhart series
185 - optionally compute step-functions incrementally
186 - disable possibly incorrect optimization
187 - minor optimizations in Ehrhart series computations
190 date: Wed Nov 17 19:22:23 CET 2004
192 - use code for computing series to count non-parametric polytopes
193 - add conversion from series to explicit function
194 - fix removal of redundant equalities
197 date: Sat Oct 16 12:13:30 CEST 2004
199 - use slightly larger random numbers
200 - change basis to remove existential variable
201 - fix bug in reduction
202 - handle empty PIP solution
203 - add utility to remove equalities
206 date: Sun Oct 3 20:47:11 CEST 2004
208 - reduce memory requirements
210 - add patch for NTL 5.3.2
211 - experimental support for Ehrhart series
212 - compile fix on systems that lack <getopt.h>
215 date: Sat Sep 18 14:49:40 CEST 2004
218 - find and use PIP if available
219 - don't overallocate matrices on newer PolyLibs
220 - verification program for enumeration of integer projections
221 - summation of enumerations
223 - support older versions of GMP
226 date: Tue Jul 6 22:09:11 CEST 2004
228 - install header files
229 - modulo representation changed to fractionals
230 - perform some simplifications on the modulo representation
231 - barvinok_enumerate returns a malloc'ed evalue
232 - a few bugs in barvinok_enumerate_e removed
233 - optionally print an indication of the size of an enumeration
235 - bug in triangularization fixed
236 - bug in polyhedron reduction fixed
237 - verif_ehrhart.c should compile on C89 systems again
241 - bug in polyhedron reduction fixed
244 date: Sun Feb 22 21:15:00 CET 2004
246 - remove remaining part of Kristof's Ehrhart manipulation code
247 - optimize modulo expression based on validity domain
248 - support partition evalues
249 - factor out 1D polytopes
250 - validity domains can now be unions of polytopes
251 - optionally convert modulo representation to lookup-table
252 - rename indicator to relation
257 - support "indicator" evalues
258 - support equalities for modulo representation
262 - remove part of Kristof's Ehrhart manipulation code
263 - partial support for modulo representation
264 - support cvs version of PolyLib
267 date: Thu Nov 27 13:35:59 CET 2003
270 include code from Kristof Beyls for manipulating Ehrhart
273 implement barvinok_enumerate for constructing Ehrhart
274 polynomials using barvinok's algorithm
277 date: Thu Nov 6 01:36:25 CET 2003
280 allow specification of max #constraints
281 for those without automatically growing chernikova tables
282 - fix a few small bugs
283 - some minor optimizations
286 date: Mon Nov 3 16:35:57 CET 2003
288 - fix a number of bugs
292 date: Mon Oct 20 14:15:45 CEST 2003
294 - change name from count to barvinok_count
295 - return -1 if polyhedron is unbounded
296 - trivially optimize counting in presence of some independent constraints