Schläfli symbol
English
editEtymology
editFrom Schläfli (“a surname”) + symbol, after 19th-century Swiss mathematician Ludwig Schläfli (1814–1895).
Noun
editSchläfli symbol (plural Schläfli symbols)
- (geometry) A notation that recursively encodes certain properties of a specified regular polytope or tessellation.
- 1995, Unnamed translator, E. B. Vinberg, Polynomial Group, article in M. Hazewinkel (editor), Encyclopaedia of Mathematics, Volume 4: Monge–Ampère Equation — Rings and Algebras, 2013, International Edition, page 481,
- The three-dimensional regular polytopes (Platonic solids) have the following Schläfli symbols: the tetrahedron — {3, 3}, the cube — {4, 3}, the octahedron — {3, 4} — the dodecahedron — {5, 3}, and the icosahedron — {3, 5}.
- 2007, Michael E. Mortenson, chapter L, in Geometric Transformations for 3D Modeling[1], page 248:
- For the regular tiling of squares the Schläfli symbol is {4,4}, indicating that there are four squares surrounding each vertex. And for the regular tiling of hexagons the Schläfli symbol is {6,3}, indicating that there are three hexagons surrounding each vertex.
- 2012, John Barnes, Gems of Geometry, 2nd edition, page 79:
- The 24-cell has has 24 octahedral cells, 24 vertices, 96 triangular faces and 96 edges. Its Schläfli symbol is {3, 4, 3} from which we see that the vertex figure is a cube.
- 1995, Unnamed translator, E. B. Vinberg, Polynomial Group, article in M. Hazewinkel (editor), Encyclopaedia of Mathematics, Volume 4: Monge–Ampère Equation — Rings and Algebras, 2013, International Edition, page 481,
Synonyms
edit- (notation encoding certain properties of a regular polytope or tessellation): Schläfli notation
Translations
editnotation encoding certain properties of a regular polytope or tessellation
|