zhyby - 2013/1/23 15:56:00
数字修约的规则ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
1、ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
修约间隔：指确定修约保留位数的一种方式，修约间隔一旦确定后，修约值即为该值的整倍数。ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
2、ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
数字修约的进舍规则ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
（1）拟舍弃数字最左一位数小于5时，则舍去，即4舍5入。ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
例如：13.2476（0.1）→13.2ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
13.2476（0.01）→13.25ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
13.2476（1）→13ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
（2）拟舍弃数字最左一位数≥5时，而且后面的数字并非全部为0时，则进1，（保留末位数加1）ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
例如：1167（100）→1200ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
12*102ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
1167（10）→1170ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
117*10ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
10.502（1）→11ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
（3）似舍弃数字最左一位数为5，而后面无数字或全部为0时，若所保留的末位数为奇数（1、3、5、7、9）则进一，为偶数（2、4、6、8、0）则舍弃，即奇进偶不进。ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
例如：2.050（0.1）→2.0ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
0.150（0.1）→0.2ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
1350（100）→1400ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
14*102ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
0.0345（保留2位有效）0.034ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
（4）负数修约同前ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
（5）0.5单位修约时，将拟修约数乘以2，按指定数位依进舍规则修约，所得数值再除以2。ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
AûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
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2AûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
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ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
24（1）ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
A的修约值ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
50.25ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
100.5ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
100ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
50.0（0.5）ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
50.38ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
100.76ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
101ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
50.5ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
（6）0.2单位修约时，先乘5，再除以5。同上。方法：小数间隔，先乘后除。ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
例如：将下列数修约到百位数0.2个单位（修约间隔20）ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
AûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
5AûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
5A的修约值（100） ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
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ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
A的修约值（20）ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
830ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
4150ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
4200ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
840ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
842ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
4210ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
4200ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
840ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
又例：将下列数修约到个位数的5个单位。方法：整数间隔，先除后乘（钢筋就是这样修约）ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
AûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
A/5ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
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A/5（1）ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
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ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
A（5）ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
442.5ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
88.5ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
88ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
440ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
442.52ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
88.504ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
89ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
445ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
541.9ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
108.38ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
108ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
540ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
243.5ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
48.72ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
49ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
245ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
347.5ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
69.50ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
70ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
350ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
zhyby - 2013/1/23 16:00:00
一些例子编排变形了，，应该是A，2A，2A（1），A的修约值。。其它类推，看得懂的就看吧，大致意思还是清楚ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
jutte - 2013/3/4 15:49:00
数据计算法则依据标准是哪个ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
dutuntun - 2013/3/24 9:06:00
进来看看ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d
zhyby - 2013/3/24 9:33:00
依据标准是GB/T 8170—2008ûÝΩ«gXºÂbbs.3c3t.comê}æy<7}d