I try by strict Math, the anwser should be between 78 and 81

来源: jinjing 于 2012-01-03 12:09:54 [档案] [旧帖] [给我悄悄话] 本文已被阅读：次 (155 bytes)

回答: 有没有好办法？由 cma 于 2012-01-01 09:00:01

the back times are longer.Cs we have to use small number in the dinominatod the error is big. If the anwser is 81,we also can't use your formula....

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