2 date: Wed Jan 16 23:45:17 CET 2008
4 - support computation of generating functions in barvinok_enumerate_e
6 - support GiNaC 1.3.8 and newer
7 - support summation using Bernoulli formula
8 - add and use zsolve from 4ti2 for computing Hilbert bases of cones
9 - support use of piplib for solving LPs
10 - add polyhedron_integer_hull and polytope_minimize
11 - add polytope_lattice_width for computing the lattice widths of polytopes
14 date: Tue Sep 11 22:02:22 CEST 2007
16 - add PolyLib and piplib as submodules
17 - remove compatibility with old versions of PolyLib and piplib
18 - support use of piplib for basis reduction
19 - support summation using local Euler-Maclaurin formula for 2D polytopes
20 - support TOPCOM based chamber decompositions
21 - simplify primal decomposition
24 date: Sat Jun 30 23:37:31 CEST 2007
26 - support exponential (Todd) substitution for non-parametric problems
27 - support primal and stopped decomposition on parametric problems
28 - support nested sums polynomial approximation of quasi-polynomials
29 - add barvinok_summate for summating a polynomial over a polytope
30 - speed improvements in barvinok_count and polyhedron_sample
33 date: Sat Apr 28 20:10:35 CEST 2007
35 - use arpg for argument parsing in most commands
37 support polynomial approximations of quasi-polynomials, including
38 volume computation, Meister's method and replacing fractional parts
40 - add barvinok_maximize for computing upper (and lower) bounds
41 - support non-parametric primal and stopped Barvinok decomposition
42 - periodic number representation now run-time configurable
43 - drop support for ancient PolyLib versions
44 - simplified partitioning of chamber complex
45 - add evalue_eval, an exact version of copmute_evalue
46 - improved handling of large generating functions
47 - integrate barvinok_series functionality into barvinok_enumerate
48 - support use of cdd for solving LPs in basis reduction
49 - initial support for computing bounds over quasi-polynomials
50 - recursive Bernstein expansion
51 - corrections and improvements of lexmin
52 - optionally print quasi-polynomial as list of polynomials
53 - add some documentation
56 date: Tue Oct 31 23:15:15 CET 2006
58 - include bernstein library with interface to barvinok and occ
60 - barvinok_count now only returns -1 for unbounded polyhedra with integer points
61 - preliminary implementation of projection via neighborhood complexes
62 - implement generalized basis reduction
63 - add polyhedron_sample
66 - some internal reorganization
67 - some gen_fun clean-ups and optimizations
68 - plug some memory leaks
69 - fix some corner cases
70 - shared libraries are no longer built by default
71 - introduce barvinok_options to pass to functions instead of just MaxRays
72 - use same LLL reduction parameter that LattE uses
73 - add some documentation
76 date: Thu Jun 22 20:49:11 CEST 2006
78 - add some documentation
79 - add barvinok_ehrhart
80 - add h_star_vector polymake client
81 - fix some corner cases
82 - more experimental support for enumerating unions of polytopes
83 - rename cdd2polylib.pl to latte2polylib.pl
86 date: Wed Feb 22 12:01:23 CET 2006
88 - fix PIP-based reduction by removing some code and assuming a recent PIP
89 - some memory leaks plugged
90 - optionally use Omega as a preprocessor in barvinok_enumerate_e
91 - integrate verif_ehrhart_e into barvinok_enumerate_e
92 - barvinok_series handles more problem with equalities
93 - add gen_fun::Hadamard_product
94 - experimental support for enumerating unions of polytopes
97 date: Fri Jan 20 22:14:44 CET 2006
99 - include Omega Calculator interface occ
100 - print_enode creates parameter names if none are provided
101 - only use PIP to project out some variables
102 - some header file fixes
106 date: Thu Sep 15 11:27:19 CEST 2005
108 - factor polyhedra into independent parts before enumeration
109 - make "random vector" specialization more robust
110 - speed up verif_ehrhart by only checking inside the context
111 - remove {Param,}Polyhedron_Reduce
112 - rename triangularize_cone to triangulate_cone
113 - generalize computation of lexmin/max using PIP
114 - compute the number of lexsmaller elements using PolyLib's LexSmaller
117 date: Mon Aug 1 12:23:50 CEST 2005
119 - fix some configuration problems
120 - include minimal polymake client
123 date: Thu Jun 30 12:10:29 CEST 2005
125 - implement "breadth-first" incremental specialization
126 - implement non-incremental version for series computation
127 - make non-incremental specialization the default again
128 - check for bad PolyLib version at runtime
129 - compiles on Windows (mingw32)
131 - allow crosscompilation
132 - compute the coefficients of an Ehrhart series
133 - fix conversion of PIP output to polyhedra
134 - allow direct verification of Ehrhart series
137 date: Sun Dec 12 23:00:40 CET 2004
139 - export Polyhedron_Project
140 - allow verification of step-functions computed from Ehrhart series
141 - optionally compute step-functions incrementally
142 - disable possibly incorrect optimization
143 - minor optimizations in Ehrhart series computations
146 date: Wed Nov 17 19:22:23 CET 2004
148 - use code for computing series to count non-parametric polytopes
149 - add conversion from series to explicit function
150 - fix removal of redundant equalities
153 date: Sat Oct 16 12:13:30 CEST 2004
155 - use slightly larger random numbers
156 - change basis to remove existential variable
157 - fix bug in reduction
158 - handle empty PIP solution
159 - add utility to remove equalities
162 date: Sun Oct 3 20:47:11 CEST 2004
164 - reduce memory requirements
166 - add patch for NTL 5.3.2
167 - experimental support for Ehrhart series
168 - compile fix on systems that lack <getopt.h>
171 date: Sat Sep 18 14:49:40 CEST 2004
174 - find and use PIP if available
175 - don't overallocate matrices on newer PolyLibs
176 - verification program for enumeration of integer projections
177 - summation of enumerations
179 - support older versions of GMP
182 date: Tue Jul 6 22:09:11 CEST 2004
184 - install header files
185 - modulo representation changed to fractionals
186 - perform some simplifications on the modulo representation
187 - barvinok_enumerate returns a malloc'ed evalue
188 - a few bugs in barvinok_enumerate_e removed
189 - optionally print an indication of the size of an enumeration
191 - bug in triangularization fixed
192 - bug in polyhedron reduction fixed
193 - verif_ehrhart.c should compile on C89 systems again
197 - bug in polyhedron reduction fixed
200 date: Sun Feb 22 21:15:00 CET 2004
202 - remove remaining part of Kristof's Ehrhart manipulation code
203 - optimize modulo expression based on validity domain
204 - support partition evalues
205 - factor out 1D polytopes
206 - validity domains can now be unions of polytopes
207 - optionally convert modulo representation to lookup-table
208 - rename indicator to relation
213 - support "indicator" evalues
214 - support equalities for modulo representation
218 - remove part of Kristof's Ehrhart manipulation code
219 - partial support for modulo representation
220 - support cvs version of PolyLib
223 date: Thu Nov 27 13:35:59 CET 2003
226 include code from Kristof Beyls for manipulating Ehrhart
229 implement barvinok_enumerate for constructing Ehrhart
230 polynomials using barvinok's algorithm
233 date: Thu Nov 6 01:36:25 CET 2003
236 allow specification of max #constraints
237 for those without automatically growing chernikova tables
238 - fix a few small bugs
239 - some minor optimizations
242 date: Mon Nov 3 16:35:57 CET 2003
244 - fix a number of bugs
248 date: Mon Oct 20 14:15:45 CEST 2003
250 - change name from count to barvinok_count
251 - return -1 if polyhedron is unbounded
252 - trivially optimize counting in presence of some independent constraints