天气预报 > 教育 > 四舍五入怎么算
四舍五入怎么算
更新时间: 2021-05-21 18:01:37  

1、例如6.56,保留一位小数就是6.6,而6.54保留一位小数就是6.5。

2、在取小数近似数的时候,如果尾数的最高位数字是四或者比四小,就把尾数去掉。

3、如果尾数的最高位数是五或者比五大,就把尾数舍去,并且在前一位进1。

4、这种取近似数的方法叫做四舍五入法,四舍五入就是比保留的位数要多看一位。

关键词: 四舍五入 怎么

四舍五入怎么算相关经验

天气预报

最新推荐

页面:/news/view-458823/ | 耗时:0.0298 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=458823 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=458823 LIMIT 0,1
select * from tbl_Articles_sphinx where id=458823 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(404405,472246,1073970,641029,1054487,532517,364650,3308520,483388,497350,532310,513791,410462,436672,510899,415176,1107333,197559,450248,387484,509503,443369,400140,467078,373913,86104,513183,433326,3493048,451322) ORDER BY field (ArticleID,404405,472246,1073970,641029,1054487,532517,364650,3308520,483388,497350,532310,513791,410462,436672,510899,415176,1107333,197559,450248,387484,509503,443369,400140,467078,373913,86104,513183,433326,3493048,451322)