Pi根本不是與圓形有關的自然數???----- of cos, pi =\ 自然數.

來源: T10 於 2011-07-01 13:24:37 [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.