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