翻訳と辞書
Words near each other
・ big gray wall
・ big iron
・ big red switch
・ big room
・ big win
・ big-endian
・ big-lan
・ bigloo
・ bignum
・ bigot
bijection
・ bill gates
・ bill joy
・ binaries
・ binary
・ binary coded decimal
・ binary compatibility standard
・ binary counter
・ binary data
・ binary exponential backoff


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

bijection : FOLDOC
bijection
A function is bijective or a bijection or a one-to-one correspondence if it is both injective (no two values map to the same value) and surjective (for every element of the codomain there is some element of the domain which maps to it). I.e. there is exactly one element of the domain which maps to each element of the codomain.
For a general bijection f from the set A to the set B:
f'(f(a)) = a where a is in A and f(f'(b)) = b where b is in B.
A and B could be disjoint sets.
See also injection, surjection, isomorphism, permutation.
(2001-05-10)



スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.