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