释义
adj.
Mathematics involving the condition that a group of quantities connected by operators gives the same result whatever the order of the quantities involved, e.g. a × b = b × a
【数】 交换的(如a × b = b × a)。
rare (generally) relating to or involving substitution or exchange
〈罕〉 (一般)代替的;交换的。
词源
"mid 16th cent. (in the sense ‘relating to transactions between people’): from French commutatif, -ive or medieval Latin commutativus, from commutat- ‘exchanged', from the verb commutare (see COMMUTE)."