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In general, an arrangement of objects is simply a grouping of them. The number of ``arrangements'' of $n$ items is given either by a Combination (order is ignored) or Permutation (order is significant).

The division of Space into cells by a collection of Hyperplanes is also called an arrangement.

See also Combination, Cutting, Hyperplane, Ordering, Permutation

© 1996-9 Eric W. Weisstein