A central arrangement is a finite set of linear hyperplanes. In other words, each hyperplane passes through the origin.
The object CentralArrangement is a type, with ancestor classes Arrangement < HashTable < Thing.
The source of this document is in /build/reproducible-path/macaulay2-1.25.05+ds/M2/Macaulay2/packages/HyperplaneArrangements.m2:1099:0.