Source: wikibot/wythoff-symbol

= Wythoff symbol
{wiki=Wythoff_symbol}

The Wythoff symbol is a notation used in the field of polyhedra and tilings, particularly in the context of regular and semi-regular polychora (four-dimensional analogs of polyhedra). It provides a way to describe the symmetry and structure of these geometric shapes. The notation typically consists of two numbers separated by a vertical bar, and sometimes additional information is included. The two numbers represent the arrangement of vertex angles or the types of faces around a vertex.