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Polyabolo
In recreational mathematics, a polyabolo (also known as a polytan) is a shape formed by gluing isosceles right triangles edge-to-edge, making a polyform with the isosceles right triangle as the base form. Polyaboloes were introduced by Martin Gardner in his June 1967 "Mathematical Games column" in ''Scientific American''. Nomenclature The name ''polyabolo'' is a back formation from the juggling object 'diabolo', although the shape formed by joining two triangles at just one vertex is not a proper polyabolo. By false analogy, treating the di- in diabolo as meaning "two", polyaboloes with from 1 to 10 cells are called respectively monaboloes, diaboloes, triaboloes, tetraboloes, pentaboloes, hexaboloes, heptaboloes, octaboloes, enneaboloes, and decaboloes. The name ''polytan'' is derived from Henri Picciotto's name ''tetratan'' and alludes to the ancient Chinese amusement of tangrams. Combinatorial enumeration There are two ways in which a square in a polyabolo can consist of two i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyabolo
In recreational mathematics, a polyabolo (also known as a polytan) is a shape formed by gluing isosceles right triangles edge-to-edge, making a polyform with the isosceles right triangle as the base form. Polyaboloes were introduced by Martin Gardner in his June 1967 "Mathematical Games column" in ''Scientific American''. Nomenclature The name ''polyabolo'' is a back formation from the juggling object 'diabolo', although the shape formed by joining two triangles at just one vertex is not a proper polyabolo. By false analogy, treating the di- in diabolo as meaning "two", polyaboloes with from 1 to 10 cells are called respectively monaboloes, diaboloes, triaboloes, tetraboloes, pentaboloes, hexaboloes, heptaboloes, octaboloes, enneaboloes, and decaboloes. The name ''polytan'' is derived from Henri Picciotto's name ''tetratan'' and alludes to the ancient Chinese amusement of tangrams. Combinatorial enumeration There are two ways in which a square in a polyabolo can consist of two i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |