2 date: Mon Dec 3 09:34:27 CET 2012
4 - support fixed power operation in iscc
5 - use isl for codegen operation in iscc
9 date: Sun Dec 18 10:49:36 CET 2011
12 - drop omega submodule
13 - preliminary Python bindings
16 date: Thu Jul 14 12:31:21 CEST 2011
19 - change license to GPLv2+ (from GPLv2)
22 date: Fri Mar 18 17:35:10 CET 2011
24 - add isl_set_apply_pw_qpolynomial
25 - drop piplib submodule
26 - barvinok_bound and barvinok_summate now accept input in isl notation
27 - use isl for more operations
31 date: Mon Sep 13 11:38:47 CEST 2010
33 - fix parameter alignment in iscc
36 date: Fri Sep 10 14:58:48 CEST 2010
38 - support named and nested spaces
39 - support union sets and maps
40 - add isl_map_apply_pw_qpolynomial
41 - use union sets and maps in iscc
42 - support codegen operation in iscc if CLooG is available
45 date: Tue Jun 29 13:18:52 CEST 2010
47 - use isl for argument parsing
48 - minor compilation fixes
49 - drop bernstein library in favor of isl implementation
50 - drop Omega calculator
51 - the Omega submodule is no longer compiled by default
52 - improved isl based calculator
53 - drop barvinok_enumerate_pip_with_options
56 date: Wed Mar 10 18:10:33 CET 2010
58 - add isl interface and new isl based calculator
59 - barvinok_enumerate now returns NaN on infinite problems
60 - minor compilation and bug fixes
61 - support newer versions of TOPCOM
64 date: Wed Jul 22 15:14:01 CEST 2009
66 - new version of Laurent expansion based exact summation
67 - minor compilation and bug fixes
68 - add semigroup_holes application
69 - add vector_partition_chambers application
72 date: Thu Oct 16 21:56:01 CEST 2008
74 - add omega as submodule
75 - minor compilation and bug fixes
78 date: Sun May 4 23:42:49 CEST 2008
80 - add Parker's library for DFA based counting
81 - support nested sums based exact summation
82 - support Laurent expansion based exact summation
83 - handle equalities and factors in summation
84 - support range propagation for computing bounds
85 - support computation of exact bound through iteration
86 - fix conversion from GiNaC's numeric to Values
89 date: Wed Jan 16 23:45:17 CET 2008
91 - support computation of generating functions in barvinok_enumerate_e
92 - support polymake 2.3
93 - support GiNaC 1.3.8 and newer
94 - support summation using Bernoulli formula
95 - add and use zsolve from 4ti2 for computing Hilbert bases of cones
96 - support use of piplib for solving LPs
97 - add polyhedron_integer_hull and polytope_minimize
98 - add polytope_lattice_width for computing the lattice widths of polytopes
101 date: Tue Sep 11 22:02:22 CEST 2007
103 - add PolyLib and piplib as submodules
104 - remove compatibility with old versions of PolyLib and piplib
105 - support use of piplib for basis reduction
106 - support summation using local Euler-Maclaurin formula for 2D polytopes
107 - support TOPCOM based chamber decompositions
108 - simplify primal decomposition
111 date: Sat Jun 30 23:37:31 CEST 2007
113 - support exponential (Todd) substitution for non-parametric problems
114 - support primal and stopped decomposition on parametric problems
115 - support nested sums polynomial approximation of quasi-polynomials
116 - add barvinok_summate for summating a polynomial over a polytope
117 - speed improvements in barvinok_count and polyhedron_sample
120 date: Sat Apr 28 20:10:35 CEST 2007
122 - use arpg for argument parsing in most commands
124 support polynomial approximations of quasi-polynomials, including
125 volume computation, Meister's method and replacing fractional parts
127 - add barvinok_maximize for computing upper (and lower) bounds
128 - support non-parametric primal and stopped Barvinok decomposition
129 - periodic number representation now run-time configurable
130 - drop support for ancient PolyLib versions
131 - simplified partitioning of chamber complex
132 - add evalue_eval, an exact version of copmute_evalue
133 - improved handling of large generating functions
134 - integrate barvinok_series functionality into barvinok_enumerate
135 - support use of cdd for solving LPs in basis reduction
136 - initial support for computing bounds over quasi-polynomials
137 - recursive Bernstein expansion
138 - corrections and improvements of lexmin
139 - optionally print quasi-polynomial as list of polynomials
140 - add some documentation
143 date: Tue Oct 31 23:15:15 CET 2006
145 - include bernstein library with interface to barvinok and occ
147 - barvinok_count now only returns -1 for unbounded polyhedra with integer points
148 - preliminary implementation of projection via neighborhood complexes
149 - implement generalized basis reduction
150 - add polyhedron_sample
153 - some internal reorganization
154 - some gen_fun clean-ups and optimizations
155 - plug some memory leaks
156 - fix some corner cases
157 - shared libraries are no longer built by default
158 - introduce barvinok_options to pass to functions instead of just MaxRays
159 - use same LLL reduction parameter that LattE uses
160 - add some documentation
163 date: Thu Jun 22 20:49:11 CEST 2006
165 - add some documentation
166 - add barvinok_ehrhart
167 - add h_star_vector polymake client
168 - fix some corner cases
169 - more experimental support for enumerating unions of polytopes
170 - rename cdd2polylib.pl to latte2polylib.pl
173 date: Wed Feb 22 12:01:23 CET 2006
175 - fix PIP-based reduction by removing some code and assuming a recent PIP
176 - some memory leaks plugged
177 - optionally use Omega as a preprocessor in barvinok_enumerate_e
178 - integrate verif_ehrhart_e into barvinok_enumerate_e
179 - barvinok_series handles more problem with equalities
180 - add gen_fun::Hadamard_product
181 - experimental support for enumerating unions of polytopes
184 date: Fri Jan 20 22:14:44 CET 2006
186 - include Omega Calculator interface occ
187 - print_enode creates parameter names if none are provided
188 - only use PIP to project out some variables
189 - some header file fixes
193 date: Thu Sep 15 11:27:19 CEST 2005
195 - factor polyhedra into independent parts before enumeration
196 - make "random vector" specialization more robust
197 - speed up verif_ehrhart by only checking inside the context
198 - remove {Param,}Polyhedron_Reduce
199 - rename triangularize_cone to triangulate_cone
200 - generalize computation of lexmin/max using PIP
201 - compute the number of lexsmaller elements using PolyLib's LexSmaller
204 date: Mon Aug 1 12:23:50 CEST 2005
206 - fix some configuration problems
207 - include minimal polymake client
210 date: Thu Jun 30 12:10:29 CEST 2005
212 - implement "breadth-first" incremental specialization
213 - implement non-incremental version for series computation
214 - make non-incremental specialization the default again
215 - check for bad PolyLib version at runtime
216 - compiles on Windows (mingw32)
218 - allow crosscompilation
219 - compute the coefficients of an Ehrhart series
220 - fix conversion of PIP output to polyhedra
221 - allow direct verification of Ehrhart series
224 date: Sun Dec 12 23:00:40 CET 2004
226 - export Polyhedron_Project
227 - allow verification of step-functions computed from Ehrhart series
228 - optionally compute step-functions incrementally
229 - disable possibly incorrect optimization
230 - minor optimizations in Ehrhart series computations
233 date: Wed Nov 17 19:22:23 CET 2004
235 - use code for computing series to count non-parametric polytopes
236 - add conversion from series to explicit function
237 - fix removal of redundant equalities
240 date: Sat Oct 16 12:13:30 CEST 2004
242 - use slightly larger random numbers
243 - change basis to remove existential variable
244 - fix bug in reduction
245 - handle empty PIP solution
246 - add utility to remove equalities
249 date: Sun Oct 3 20:47:11 CEST 2004
251 - reduce memory requirements
253 - add patch for NTL 5.3.2
254 - experimental support for Ehrhart series
255 - compile fix on systems that lack <getopt.h>
258 date: Sat Sep 18 14:49:40 CEST 2004
261 - find and use PIP if available
262 - don't overallocate matrices on newer PolyLibs
263 - verification program for enumeration of integer projections
264 - summation of enumerations
266 - support older versions of GMP
269 date: Tue Jul 6 22:09:11 CEST 2004
271 - install header files
272 - modulo representation changed to fractionals
273 - perform some simplifications on the modulo representation
274 - barvinok_enumerate returns a malloc'ed evalue
275 - a few bugs in barvinok_enumerate_e removed
276 - optionally print an indication of the size of an enumeration
278 - bug in triangularization fixed
279 - bug in polyhedron reduction fixed
280 - verif_ehrhart.c should compile on C89 systems again
284 - bug in polyhedron reduction fixed
287 date: Sun Feb 22 21:15:00 CET 2004
289 - remove remaining part of Kristof's Ehrhart manipulation code
290 - optimize modulo expression based on validity domain
291 - support partition evalues
292 - factor out 1D polytopes
293 - validity domains can now be unions of polytopes
294 - optionally convert modulo representation to lookup-table
295 - rename indicator to relation
300 - support "indicator" evalues
301 - support equalities for modulo representation
305 - remove part of Kristof's Ehrhart manipulation code
306 - partial support for modulo representation
307 - support cvs version of PolyLib
310 date: Thu Nov 27 13:35:59 CET 2003
313 include code from Kristof Beyls for manipulating Ehrhart
316 implement barvinok_enumerate for constructing Ehrhart
317 polynomials using barvinok's algorithm
320 date: Thu Nov 6 01:36:25 CET 2003
323 allow specification of max #constraints
324 for those without automatically growing chernikova tables
325 - fix a few small bugs
326 - some minor optimizations
329 date: Mon Nov 3 16:35:57 CET 2003
331 - fix a number of bugs
335 date: Mon Oct 20 14:15:45 CEST 2003
337 - change name from count to barvinok_count
338 - return -1 if polyhedron is unbounded
339 - trivially optimize counting in presence of some independent constraints