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A quincunx is a geometric pattern consisting of five points, four in a square with one more in the middle of the square. Quincunx may also refer to: *Quincunx matrix, a 2×2 Hadamard matrix that generates points in a diagonal lattice pattern *Bean machine, also called a quincunx, a machine designed by Sir Francis Galton to demonstrate normal distributions, consisting of an array of pins in a diagonal lattice pattern *Quincuncial map, a method of mapping the globe onto a square so that the poles map to the five points of a quincunx *Place des Quinconces, a city square in Bordeaux, France, named for the quincunx pattern in which its trees were planted *In 19th-century mathematics, "quincunx" was used to describe a rhombic lattice, the points of intersection of two families of equally spaced parallel lines Quincunxes in literature include: *''The Garden of Cyrus or The Quincunciall Lozenge'' is a 1658 philosophical treatise by Sir Thomas Browne concerning interconnections in art and science involving the number five and the quincunx pattern *Quincunx is a lake with an island containing ''Mistress Masham's Repose'' in the 1946 novel of that name by T. H. White *''The Quincunx of Time'' is a 1973 science fiction novel by James Blish. The title refers to an orchard in the Academy of Plato, planted in a quincunx pattern *''The Avignon Quintet'' is a set of five novels that its author, Lawrence Durrell, described as forming a quincunx. The fifth, ''Quinx'' (1985), has a plot that includes the discovery of a stone quincunx pattern *''The Quincunx'' is a 1989 novel by Charles Palliser that traces five related families over five generations In biology, "quincuncial" has multiple meanings but does not generally refer to the five-point quincunx pattern: *Quincuncial aestivation is an arrangement of the parts of a flower bud prior to opening found in some plants *Quincuncina is a genus of freshwater mussels named for the pattern of nodules on its shells The following uses relate to the original meaning of a quincunx as a 5/12 fraction rather than to the geometric pattern: *Quincunx (Roman coin), a bronze coin with the value of 5/12 of an as *Quincunx (astrology), an angle of 150°, 5/12 of a complete circle 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Quincunx (disambiguation)」の詳細全文を読む スポンサード リンク
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