In geometry

Geometry

Geometry arose as the field of knowledge dealing with spatial relationships. Geometry was one of the two fields of pre-modern mathematics, the other being the study of numbers ....

, an octagram is an eight-sided star polygon.

Geometry

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

Polygon

In geometry a polygon is a flat shape consisting of straight lines that are joined to form a closed chain orcircuit.A polygon is traditionally a plane figure that is bounded by a closed path, composed of a finite sequence of straight line segments...

).

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

Square (geometry)

In geometry, a square is a regular quadrilateral. This means that it has four equal sides and four equal angles...

, called the Star of Lakshmi.

The symbol Rub el Hizb

Rub El Hizb

The Rub el Hizb is a Muslim symbol, represented as two overlapping squares, which is found on a number of emblems and flags. In Arabic, Rubʻ means "one fourth, quarter", while Hizb means a group or party...

 is a Unicode

Unicode

Unicode is a computing industry standard for the consistent encoding, representation and handling of text expressed in most of the world's writing systems...

 glyph ۞ at U+06DE.

Usage

• Auseklis
  Auseklis
  Auseklis was a Latvian god, and the personification of the celestial body Venus...
  
   – usage of regular octagram by Latvians
• Selburose
  Selburose
  A selburose or is a knitted rose pattern from Selbu in Norway in the shape of a regular octagram. It is a traditional pattern used for winter clothing. Perhaps the most typical garment is the Selbu mitten, selbuvott...
  
   – usage of regular octagram in Norwegian design

Stars generally

• Star (symbol)
  Star (symbol)
  A star is an ideograph whose outer edge forms a symmetrical polygon whose vertices alternate between joining outward- and inward-pointing pairs of edges. The figure may be the border or interior of the polygon, or one or more closed polygonal paths that include all of the border and also have some...
  
  
• Stellation#Stellated polygons
• List of regular polytopes#Two Dimensions 2