当年牛顿(和宿敌莱布尼兹)发明积分时也是诉诸【海量微分】得渺小单元、再累加

来源: 沁文----古来客于 2020-09-04 22:25:47 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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