大家說說他怎麽有名了？我大學學了那麽多數學，怎麽都不知道他？我就知道拉格朗日。。。

來源: miamiman 於 2012-06-24 08:26:24 [舊帖] [給我悄悄話] 本文已被閱讀：次

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