Polymake 4.15

Release dates:

• 4.15: September 30th, 2025

– graph –

• graphviz: use pdf instead of ps

– fan –

• check_fan: fix ray identification
• cone: fix incidences in some special cases
• HyperplaneArrangement: fix bugs for single cells

– polytope –

• MILP: allow non-rational coordinates

– topaz –

• unimodular: improvements, allow non-full-dimensional

– tropical –

• covectors: various fixes