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Changelog
=== Polymake 3.2r4 ===
-- distribution --
* several small bug fixes
* support for lrslib 070
* fix order in config.ninja for reproducibility
-- graph --
* fix edge number of permuted graphs
-- polytope --
* vertex_figure: correct intermediate LP
* BOUNDED_COMPLEX: correct ADJACENCY
* normaliz interface: two minor fixes
* Cone-VISUAL: fix incidences
* tensor: dont compare example output
(order depends on cdd version)
=== Polymake 3.2r3 ===
-- distribution --
* small bug fixes
* threejs is the default viewer if jreality is not configured
* support for java 10
* adapt to changes in boost 1.67
* fix for JuPyMake support on Mac OS X
* removed fink as the default package manager for Mac OS X
* included support for the brew package manager on Mac OS X
=== Polymake 3.2r2 ===
-- distribution --
* several improvements for polymake-in-container
* improve JuPyMake support for Mac OS X
* preliminary support for clang 6 and gcc 8
* improvements in java build/install process
* improve callable library file structure
* include INSTALL and COPYING in tarball again
=== Polymake 3.2r1 ===
-- distribution --
* fix JuPyMake installation for python3 older than 3.5
=== Polymake 3.2 ===
-- distribution --
* build system changed to ninja
* support gcc 7 and clang 5
* support for perl 5.26 and blead up to 5.27.7
* tutorials available as jupyter notebooks
-- interfaces --
* new python interface to callable library (thanks Sebastian Gutsche)
* new jupyter-kernel interface (thanks Sebastian Gutsche)
- threejs visualization now working again in jupyter
* libnormaliz:
- update bundled version to 3.5.0
- support preexisting installation (version >= 3.1.0)
* cdd and lrs: support debugging output
* lrs: fix segfault with non-quiet lrslib
* ppl: requires version >= 1.2
* soplex: requires version >= 2.2.1
* callable library: major improvements for emulating command line
-- general --
* fixes and improvements for various visualization methods
-- common --
* many improvements in polyDB interface including new database format
* new substitute method for polynomials
* replace rgb.txt by perl optional module Graphics::ColorNames
- polymake includes a short list of fallback colors now
* induced group actions on arbitrary containers
-- fan --
* rename SymmetricFan to PolyhedralFan and incorporate SymmetricFan's properties there
* fixes in regularity checks
* new property PSEUDO_REGULAR
-- graph --
* several fixes for props::Graph
-- group --
* fixes for linear_symmetries
* improved support of matrix group actions
* rename MATRIX_GROUP_ACTION and MatrixGroupAction to MATRIX_ACTION and matrix_action, respectively
-- polytope --
* fixed parser for LP file format
* new property MAHLER_VOLUME for Polytope
* new client for reduced 3-polytopes
* user method Polytope::VISUAL now takes Transformation and Offset as optional arguments
* zero vectors in input properties throw an exception
* major refactoring of VoronoiDiagram
* groups added to several basic constructions
* improved support for root systems
* beneath_beyond support for non-full-dim / non-pointed cases
-- topaz --
* new big object type HyperbolicSurface
- encoded via an doubly connected edge list
-- tropical --
* tropical double description method
* feasibility check for tropical linear inequality systems
* several improvements to and refactoring of basic clients
=== Polymake 3.1 ===
-- distribution --
* polymake now requires C++ 14 to compile, in particular we need gcc >= 5 or clang >= 3.4 and perl >= 5.16.
* support for perl 5.24.
* fix endianness issue and update struct magic_state (thanks Jerry James)
* support for gcc 6 and clang up to 4.0.
* workaround for compile error under clang 3.8 / xcode 7.3.
* fix incompatibility of the Integer type with libnormaliz on 32bit platforms.
* fix several other minor compilation issues.
* ship test-driver to allow example-code to be tested in the distribution
* boost is now required for the polymake core (for permlib)
* perl module Term-ReadKey is now a requirement
-- interfaces --
* include beta jupyter-polymake kernel (thanks: Sebastian Gutsche)
* include nauty interface in minimal tarball.
* warn when neither bliss nor nauty are enabled.
* polydb interface is now in the polymake core
* updated bundled permlib to 0.2.9
* improved interfaces for permlib and sympol:
- both have (experimental) support for using non-bundled installations
- permlib is now a core requirement
- bundled:group disbanded into bundled:sympol / core functionality
- bundled permlib headers are now installed with polymake unless external permlib is used
* improved handling of matrices with zero cols xor zero rows in convex hull interfaces
* improved singular configuration to support pkg-config (e.g. on Ubuntu)
-- general --
* polymake can now generate xml schemes and validate the data files against those
* completely refactored Polynomial related data types:
- rings are now uniquely identified by coefficient type, exponent type and number of variables
- variable names are only used for pretty printing and parsing (and can be customized)
- improved parser for polynomials
- types Monomial, Term and Ring are gone
* improved visualization with graphviz and ThreeJS.
* new and improved visualization client svg.
* basic support for output of 3-polytopes in STL file format (common in 3d printing).
* new mechanism for "twin" properties (such as Matroid.DUAL).
* many more example code fragments, in particular for construction of big object types.
* improvements for map and set types:
- only accept ordered types as keys / elements
* various bugfixes and code optimizations.
* fixes for find_permutation with unordered types
* fixes for the TikZ visualization:
- for drawing PointConfigurations.
- for drawing lattice points in polytopes.
- for drawing subobjects
* fixes in singular value decomposition
-- fan --
* new big object types SubdivisionOfPoints and SubdivisionOfVectors.
* new subobject SubdivisionOfPoints.TIGHT_SPAN with method VISUAL_METRIC_TIGHT_SPAN for metric tight spans.
* new functions metric_extended_tight_span and metric_tight_span
* new client to compute the k-skeleton of a fan
* secondary_cone is now a method of SubdivisionOfVectors.
* improved heuristics for planar nets of 3-polytopes.
* improved visualization for fans
* fix in regularity client (thanks: Sebastian Gutsche).
* another fix in regularity client.
* fixed issues with empty matrices
-- graph --
* completely rewritten and modularized Hasse diagram data types and functions
* new client all_spanningtrees, which finds all spanning trees in a connected graph.
* new properties for bi-,weak and strong connectedness of a (directed) graph.
* new property EIGENVALUES_LAPLACIAN, containing the eigenvalues of the discrete Laplacian of a graph.
* new client for graph homomorphisms
* fixes in hungarian method and tropical::tdet
-- group --
* major refactoring of symmetries on objects:
- new big object types Action, PermutationAction, PermutationActionOnSets, ImplicitActionOnSet, MatrixGroupActionOnVector.
- objects with symmetries now contain multiple subobjects of type Group, which in turn can contain different kinds of Actions as properties.
* boost_dynamic_bitset replaced with polymake Bitset
-- ideal --
* new client pluecker_ideal, computing the Plücker ideal of the Grassmannian.
* new property INITIAL_FORMS in Ideal.
-- matroid --
* refactoring of dual matroids:
- each matroid has a twin property DUAL, which is a matroid again.
- there are various rules, which compute properties in a matroid from its dual.
* new big object type ValuatedMatroid.
* added many new properties to Matroid: AUTOMORPHISM_GROUP, CATENARY_G_INVARIANT, G_INVARIANT, IDENTICALLY_SELF_DUAL, LAMINAR, LATTICE_OF_CYCLIC_FLATS, N_CONNECTED_COMPONENTS, N_CYCLIC_FLATS, N_FLATS, NESTED, SELF_DUAL, SIMPLE, SPLIT, SPLIT_FLACETS, SPARSE_PAVING, TRANSVERSAL, UNIFORM.
* various clients for matroid operations: various lifts and extensions, truncation, union, intersection.
* replaced client "oxley_matroids" by client "special_matroids", where matroids can be selected by name.
* matroids can now be defined via their flats or cyclic flats.
-- polytope --
* updated bundled extension libnormaliz to version 3.1.3.
* new properties in Polytope for excess vertex and facet degree.
* new client face to create Polytope from a face of a polytope
* new visualization for cones
* revived OrbitPolytope type as object specialization PointOrbit
* improved handling of matrices with zero cols xor zero rows
* improved initial rules for polytopes and cones
* improved computation of separating hyperplanes, which allows for weak separation as well.
* improved computation of whether a point lies in (the interior of) a polytope. In particular, this works now for generic polytopes, not just over the rationals.
* removed Object TightSpan. Functionality is now in fan:
- moved functions min_metric, max_metric, thrackle_metric into application fan.
- splitstree is moved to fan as a userfunction
* fix for degenerate hypersimplices (thanks: Charles Wang).
* fixes for solving LPs with lineality
* fixes in TOPCOM interface.
* fixed loading of old data files with OrbitPolytope and SymmetricPolytope
-- topaz --
* homology can be computed for arbitrary chaincomplexes, represented by their boundary matrices.
* new clients for computing Vietoris-Rips complexes and filtrations.
* new client for computing persistent homology, both over arbitrary fields and the integers.
* new function to compute boundary matrices of simplicial complexes
* new function to compute betti numbers of chaincomplexes and simplicial complexes
* added property VERTEX_MAP for subcomplexes (e.g. BOUNDARY)
* various fixes and improvements regarding subcomplexes
-- tropical --
* renamed tropical::Cone to tropical::Polytope.
* new clients for tropical distance, perimeter, Cramer's rule and variants of the determinant.
* new clients for computing the star of a cycle in bundled extension atint.
* new big object type MatroidRingCycle in bundled extension atint, which represents linear combinations of matroid fans.
* new client for computing tropical linear spaces of arbitrary valuated matroids.
* refactoring of function linear_space
=== Polymake 3.0 ===
-- distribution --
* support for libc++
* better support for compiling on MacOS X
* support compilation with C++11 enabled
* fix for gcc-5.x
* fix rare build issues
* support for perl 5.22
* fix build issue with gmp-6.1
* fixes for build-reproducibility
-- general --
* significant improvement in rule scheduling
* examples for various properties and clients:
- in online help
- in HTML documentation
- focused on application polytope
* various bugfixes and improvements, especially in documentation and visualization
* fixes and improvements in TAB-completion and F1-help
* merge github pull #2 (fix -Werror=format-security issues)
* fix jReality visualization on various Intel HD Graphics (updated jogl)
* fix jReality startup issues
-- common --
* add new coordinate type PuiseuxFraction
* new client for Hermite normal form
* basic numerical linear algebra for double coordinates:
- new client for QR-decomposition
- new client for singular value decomposition
- better solving of linear systems with double coordinates
* improvements for FacetList type
* matrix element access now via ->elem(,)
-- fan --
* new client planar_net, including visualization and flaps generation
* new clients for dual fans of graph associahedra and manipulating tubings
* new objects SubdivisionOfPoints and -Vectors:
- some refactoring of related properties
-- group --
* refactored orbit and group action
* new client for generic orbit computations
* improvements / fixes for linear symmetries computation
-- matroid --
* new client for rank of arbitrary sets
* new client for minimum weight bases
* new client for free extensions
* new property transversal_presentation
* new property splitting_flacets
* fixed bug in check_basis_exchange_axiom
-- polytope --
* clients for all Johnson solids:
- with correct combinatorics
- many with exact QuadraticExtension or Rational coordinates
* clients and wrappers for Platonic, Archimedean and Catalan solids
* new client to count triangulations for 2-dim. point configurations (Alvarez,Seidel)
* new client long_and_winding
* new client goldfarb_sit
* new client for lattice width
* new client for decomposing a polytope into direct summands
* LatticePolytope is now a specialization of Polytope instead of a separate type
* renamed several integer programming related clients to fractional_
* fixed some problems with Minkowski sum client
* wythoff client now produces maximally symmetric polytopes whenever possible, i.e. except for G2
* fixes for h^*-vector and Ehrhart polynomial computation
-- topaz --
* new client random_discrete_morse, used for improved heuristic sphere recognition
* new header tools for dealing with posets (construction, homomorphisms, etc)
* new properties UNIMODULAR and N_UNIMODULAR for GeomertricSimplicialComplex
* renamed P_sum_triangulation client to sum_triangulation and improved functionality
* new auxiliary clients for supporting sum-triangulations
-- tropical --
* Major refactoring:
- new object type Cycle, based on polyhedral complex
- templated hypersurface client for Min/Max
- renamed TropicalPolytope to Cone
* added atint as a bundled extension for tropical intersection theory
* added support for infinite coordinates
* new client covector
* new data type CovectorLattice
* cleanup of obsolete functionality
-- interfaces --
* new interface to LP-solver SoPlex 2.2.0
* update lrs to 6.0
* update cdd to 094h
* update nauty to 2.5r9
* update libnormaliz to 3.0.90
* update threejs to 73
* singular:
- division of polynomials by ideals
- contains monomial test
- access to singular polynomials as matrix / vector pair
* sympol:
- convex hull computation up to symmetry now supports ppl
* improvements in TOPCOM interface
* normaliz2 file based interface removed
=== Polymake 2.14 ===
-- General --
* support for perl 5.20
* support for MacOS 10.10 (Bundle)
* utf-8 encoding for java build recipes (merges github pull request #1)
* libpolymake improvements
* fixed equal_bases (thanks to ChoF @polymake-forum)
* new client for hadamard product of matrices
* many minor bugfixes and improvements
* documentation improvements
* substantial further modularization of configuration and installation
-- fan --
* new client for product of fans
* new client for mixed subidivions
* proper handling of empty and trivial fans
-- graph --
* new client for Johnson graphs
* new client for the complement of graphs
-- group --
* new client for converting action on columns to action on rows
-- matroid --
* new properties for matroids
* renaming of some properties (e.g. POINTS is now called VECTORS)
* lattice of flats
* improvements on basis exchange test
* new client for direct and 2-sum
* new client for parallel and series extensions
* new client for lexicographic extensions
* new client for modular cut check
* computation of circuits via 4ti2
-- polytope --
* added vector configurations
* lp2poly returns a polytope with rational coordinates by default instead of float coordinates
* new client for cayley embeddings
* new client for regular simplex and fano simplex
* new client for weighted digraph polyhedron
* new client for archimedian solids
* new client for quotient of triangulations
* new client for del Pezzo and pseudo del Pezzo polytopes
* corrected handling of COORDINATE_LABELS in print_constraints
* added flag for computing the outer normal cone
* added combinatorial versions of product and join
* added E6 and E7 to wythoff client
* new script for converting boolean circuits to polytopes
* new script 'analyze_this'. Creates a .tex file with basic information about a polytope
-- topaz --
* new client for calculating a P-Sum-Triangulation
* new client for independence complex of a matroid
-- tropical --
* new coordinate type TropicalNumber
-- visualization --
* new visualization backend: ThreeJS (view in browser)
* improvements in TikZ and Sketch interfaces
* TikZ supports face lattices (it is the new default)
* visualization for unbounded polyhedra
* fixes in fan visualization
-- interfaces --
* singular interface:
- compatibility
- support for more term orders
* libnormaliz interface updated to v2.12.2
* TOSimplex: OpenMP support and other improvements
* interfaces of cdd and lrs:
- moved to bundled extensions
- support for external cdd and lrs installations
=== older versions ===
see http://polymake.org/doku.php/news
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