Point
The point (also called monad or monon[1]). is the only possible 0-polytope or polyon. If the nullitope is not considered, this is the simplest possible polytope overall, as it has no other lower-dimensional elements. It appears as the vertices in all higher polytopes.
Point | |
---|---|
Rank | 0 |
Type | Regular |
Space | Spherical |
Notation | |
Bowers style acronym | Point |
Coxeter diagram | |
Elements | |
Vertex figure | Nullitope |
Measures (edge length 1) | |
Central density | 1 |
Number of external pieces | 1 |
Level of complexity | 1 |
Related polytopes | |
Army | Point |
Dual | Point |
Conjugate | None |
Abstract & topological properties | |
Flag count | 1 |
Euler characteristic | 0 |
Orientable | Yes |
Properties | |
Symmetry | A0, order 1 |
Convex | Yes |
Nature | Tame |
A point is simultaneously a 0-simplex, a 0-hypercube, and a 0-orthoplex. Furthermore, a point is the pyramid of the nullitope.
Somewhat contrary to intuition, the point is technically asymmetrical, as its only automorphism is trivial.
Vertex coordinatesEdit
Coordinates for a point are simply:
- .
ReferencesEdit
- ↑ Inchbald, Guy. http://www.steelpillow.com/polyhedra/ditela.html
External linksEdit
- Bowers, Jonathan. "Zero Dimensional Shapes".
- Wikipedia Contributors. "Point (geometry)".