Adjective:

पेंटागॉन,

heptagonal's Usage Examples:

are the reflection domains for the (2,3,n) triangle groups – for the heptagonal tiling, the important (2,3,7) triangle group.

In geometry, the order-4 heptagonal tiling is a regular tiling of the hyperbolic plane.

(sequence A002413 in the OEIS) The nth heptagonal number can be calculated by adding up the first n heptagonal numbers, or more directly by using the formula.

The n-th heptagonal number is given by the formula.

geometry, the order-3 snub heptagonal tiling is a semiregular tiling of the hyperbolic plane.

In geometry, the truncated order-4 heptagonal tiling is a uniform tiling of the hyperbolic plane.

In geometry, the truncated order-7 heptagonal tiling is a uniform tiling of the hyperbolic plane.

A heptagonal number is a figurate number that is constructed by combining heptagons with ascending size.

A formula for the sum of the reciprocals of the heptagonal numbers is given by: ∑ n 1 ∞ 2 n ( 5 n − 3 ) 1.

centered Centered triangular Centered square Centered pentagonal Centered hexagonal Centered heptagonal Centered octagonal Centered nonagonal Centered.

mathematics, a heptagonal pyramidal number is a figurate number representing the number of dots in a three-dimensional pattern in the shape of a heptagonal pyramid.

heptagonal trapezohedron or deltohedron is the fifth in an infinite series of trapezohedra which are dual polyhedron to the antiprisms.

numbers Centered pentagonal numbers Centered hexagonal numbers Centered heptagonal numbers Centered octagonal numbers Centered nonagonal numbers Centered.