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基进偶不进是什么意思
更新时间: 2020-08-17 00:00:00  

这是一种求近似数的方法,过去所采用的“四舍五入”的方法是4舍6入5看齐,奇进偶不进的方法。就是说,舍弃数小于5时,均应按四舍五入的方法舍弃,舍弃数大于或等于6时,则应按四舍五入的方法进入,只有舍弃数是5时,则应看其前一位数是奇数还是偶数,如是奇数则进入,如是偶数则舍弃。

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