Octagram

Octagram
A regular octagram
Edges and vertices	8
Schläfli symbol	{8/3}

Lengths in a regular {8/3} octagram

Star figure |8/2| or 2{4}, Star of Lakshmi

In geometry, an octagram is an eight-sided star polygon.

Geometry

In general, an octagram is any self-intersecting octagon (8-sided polygon).

The regular octagram is labeled by the Schläfli symbol {8/3}, which means an 8-sided star, connected by every 3rd point.

There is one compound star figure, {8/2}, composed of two squares, called the Star of Lakshmi.

The symbol Rub el Hizb is a Unicode glyph ۞ at U+06DE.

See also

Usage

• Auseklis – usage of regular octagram by Latvians
• Selburose – usage of regular octagram in Norwegian design

Stars generally

• Star (symbol)
• 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.

External links

• Weisstein, Eric W., "Octagram" from MathWorld.

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