Quincunx (disambiguation)

A quincunx originally meant a 5/12 fraction of something, but most modern uses involve patterns of five points. "Quincunx" or "quincuncial" may in particular refer to

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Derived from original meaning

Geometric patterns of points
  • Quincunx, five points, four in a square with one more in the middle of the square.
  • An orchard planted in a square lattice aligned diagonally to the surrounding plot of land
  • 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
  • Rhombic lattice, the points of intersection of two families of equally spaced parallel lines, called a quincunx In 19th-century mathematics

Literature
  • The Garden of Cyrus or The Quincunciall Lozenge, a 1658 philosophical treatise by Sir Thomas Browne concerning interconnections in art and science involving the number five and the quincunx pattern
  • Mistress Masham's Repose, a 1946 novel by T. H. White in which a lake in the grounds of Maria's estate is called the Quincunx
  • The Quincunx of Time, 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, 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, a 1989 novel by Charles Palliser that traces five related families over five generations
  • The Quincunx Cycle, a series of novels begun in 2014 written by Canadian author André Alexis

Biology
  • Quincuncial aestivation, an arrangement of five parts of a flower bud prior to opening found in some plants
  • Quincuncina, a genus of freshwater mussels named for the pattern of nodules on its shells
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