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- Mathematics
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- Fields of mathematics
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- Combinatorics
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- Magic shapes

- Mathematics
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- Fields of mathematics
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- Magic shapes

Magic circle (mathematics)

Magic circles were invented by the Song dynasty (960–1279) Chinese mathematician Yang Hui (c. 1238–1298). It is the arrangement of natural numbers on circles where the sum of the numbers on each circl

Magic triangle (mathematics)

A magic triangle is an magic arrangement of the integers from 1 to n to triangular figure.

Magic hexagon

A magic hexagon of order n is an arrangement of numbers in a centered hexagonal pattern with n cells on each edge, in such a way that the numbers in each row, in all three directions, sum to the same

Magic graph

A magic graph is a graph whose edges are labelled by the first q positive integers, where q is the number of edges, so that the sum over the edges incident with any vertex is the same, independent of

Magic hexagram

A magic hexagram of order 2 is an arrangement of numbers in a hexagram with triangular cells with 2 cells on each edge, in such a way that the numbers in each row, in all three directions, sum to the

Magic polygon

A magic polygon is a polygonal magic graph with integers on its vertices.

Magic star

An n-pointed magic star is a star polygon with Schläfli symbol {n/2} in which numbers are placed at each of the n vertices and n intersections, such that the four numbers on each line sum to the same

Hexagonal tortoise problem

The hexagonal tortoise problem (Korean: 지수귀문도; Hanja: 地數龜文圖; RR: jisugwimundo) was invented by Korean aristocrat and mathematician Choi Seok-jeong, who lived from 1646 to 1715. It is a mathematical pr

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