英和和英

語源

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

発音

• (英国発音) IPA: /ˌpɜː.mjʊˈteɪ.ʃən/, [ˌpɜː.mjʊˈteɪ.ʃn̩]
• (米国発音) IPA: /ˌpɝ.mjʊˈteɪ.ʃ(ə)n/
• (General Australian) IPA: /ˌpɜː.mjʉˈtæɪ.ʃən/, [ˌpɜː.mjʉˈtæɪ.ʃn̩]
• ハイフネーション: per‧mu‧ta‧tion
• 韻: -eɪʃən

名詞

permutation (countable and uncountable, plural permutations)

1. One of the ways something exists, or the ways a set of objects can be ordered.

   Which permutation for completing our agenda items makes the most sense?

2. (mathematics) A one-to-one mapping from a finite set to itself.

   This permutation takes each element to the one following it, with the last mapped back to the first.

3. (mathematics, combinatorics) An ordering of a finite set of distinct elements.

   There are six permutations of three elements, e.g. {abc, acb, bac, bca, cab, cba}.

4. (music) A transformation of a set's prime form, by applying one or more of certain operations, specifically, transposition, inversion, and retrograde.

派生語

参考

• (combinatorics): combination

アナグラム

• importunate, premutation