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 牢記 以10為底的對(duì)數(shù),叫做常用對(duì)數(shù).log10N通常寫作lgN.以無(wú)理數(shù)e=2.718281828…為底的對(duì)數(shù),叫做自然對(duì)數(shù).logeN通常寫作lnN. (共 77 字) [閱讀本文] >>