permutation

名词 n.
中文释义
英 /ˌpɜː.mjʊˈteɪ.ʃən/|[ˌpɜː.mjʊˈteɪ.ʃn̩]    美 /ˌpɝ.mjʊˈteɪ.ʃ(ə)n/|/ˌpɜː.mjʉˈtæɪ.ʃən/|[ˌpɜː.mjʉˈtæɪ.ʃn̩]

英文释义

名词 n.
  1. One of the ways something exists, or the ways a set of objects can be ordered. countable,uncountable
    — Which permutation for completing our agenda items makes the most sense?
  2. A one-to-one mapping from a finite set to itself. countable,uncountable
    — This permutation takes each element to the one following it, with the last mapped back to the first.
  3. An ordering of a finite set of distinct elements. countable,uncountable
    — There are six permutations of three elements, e.g. {abc, acb, bac, bca, cab, cba}.
  4. A transformation of a set's prime form, by applying one or more of certain operations, specifically, transposition, inversion, and retrograde. countable,uncountable

词形变化

permutations plural

词汇关系

衍生词
multipermutation permutational permutation box permutation group permutation lock simsun permutation subpermutation superpermutation vexillary permutation
相关词
combination

词源

From Middle English permutacioun, permutacyoun, from Old French permutacïon, promutatïon and Medieval Latin permūtātiōnem, accusative of permūtātiō.
Morphologically permute + -ation.
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