Hendecagram

Hendecagram
The four regular hendecagram forms
Edges and vertices	11
Schläfli symbol	{11/2}, {11/3} {11/4}, {11/5}

A hendecagram is a star polygon that has eleven vertices. There are 4 regular forms: {11/2}, {11/3}, {11/4}, {11/5}.

Symbolism

• The {11/2} star polygon is used as a symbol for the Aleister Crowley Foundation.^{[citation needed]}
• {11/3} Hendecagrams are on the Dome of the tomb of Shah Ne'emat Ollah-e-Vali, Mahan, Iran.^{[citation needed]}

Popular culture

• Hendecagram is the most frequently used symbol in album cover arts of the Swedish symphonic metal band, Therion.
• The {11/4} hendecagram appears upon the cover of Swedish black metal band Dissection's final album, Reinkaos.

Graph

The regular hendecagon and hendecagrams combine together to represent a complete graph with 11 vertices. This is also the graph of the 10-simplex, in a skew orthogonal projection.

10-simplex (10D)

See also

• Stellation#Stellated polygons
• List of regular polytopes#Two Dimensions 2

References

• Grünbaum, B. and G.C. Shephard; Tilings and Patterns, New York: W. H. Freeman & Co., (1987), ISBN 0-7167-1193-1.
• Grünbaum, B.; Polyhedra with Hollow Faces, Proc of NATO-ASI Conference on Polytopes ... etc. (Toronto 1993), ed T. Bisztriczky et al., Kluwer Academic (1994) pp. 43–70.