Commutative

[kə'mjuːtətɪv;'kɒmjʊ,tətɪv] or [kə'mjutətɪv]

解释:

(adj.) (of a binary operation) independent of order; as in e.g. 'a x b = b x a' .

乔伊手打--From WordNet

解释:

(a.) Relative to exchange; interchangeable; reciprocal.

杰罗姆录入