英语词汇“identity element”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	identity element
释义	identity element n. The element of a set of numbers that when combined with another number in a particular operation leaves that number unchanged. For example, 0 is the identity element under addition for the real numbers, since if a is any real number, a + 0 = 0 + a = a. Similarly, 1 is the identity element under multiplication for the real numbers, since a × 1 = 1 × a = a. Also called unity.
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