单词 | commutative |
释义 | commutative —commutatively, adv. —commutativity, n. /keuh myooh"teuh tiv, kom"yeuh tay'tiv/, adj. 1. of or pertaining to commutation, exchange, substitution, or interchange. 2. Math. a. (of a binary operation) having the property that one term operating on a second is equal to the second operating on the first, as a × b = b × a. b. having reference to this property: commutative law for multiplication. [1525-35; < ML commutativus, equiv. to L commutat(us) (ptp. of commutare; see COMMUTE, -ATE1) + -ivus -IVE] |
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