Polymake 3.4

Release dates:

• 3.4: April 15th, 2019

– interfaces –

• TOSimplex: Add interface to MILP solver
• jreality: support for java 12
• Fix bookmarks to external software in documentation

– general –

• several improvements for x3d visualization (e.g. via blender)
• fix callable library path deduction (thanks Antonio Rojas)
• various improvements in ipynb tutorials

– common –

• all_subsets_of_k: c++ function now accessible from perl
• polydb
  • support subobject arrays
  • add aggregate function

– fan –

• PolyhedralFan: fix in visualization method
• SubdivisionOfVectors: add property ALTSCHULER_DET

– polytope –

• refactor MILP solvers to provide generic interface solve_MILP
• Polytope: add property SPANNING, a polytope is spanning if the lattice points generate the lattice
• PointConfiguration: add property MASSIVE_GKZ_VECTOR for triangulation subobject
• rand_sphere: can sample rational points from the unit sphere
• n_triangulations: Renamed to n_fine_triangulations, documentation adapted accordingly

– tropical –

• add functions: tregular, stregular, tsgn
• Hypersurface: fix DOME for polynomials with only one term
• Hypersurface: improve documentation concerning required homogenization
• Hypersurface: add property DUAL_SUBDIVISION