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zhyby - 2013/1/23 15:56:00
数字修约的规则á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
1、á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
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。á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
2、á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
数字修约的进舍规则á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
1)拟舍弃数字最左一位数小于5时,则舍去,即45入。á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
例如:13.24760.1)→13.2á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
13.2476
0.01)→13.25á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
13.2476
1)→13á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
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1á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
例如:1167100)→1200á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
12*102
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
1167
10)→1170á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
117*10
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
10.502
1)→11á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
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(13579)则进一,为偶数(24680)则舍弃,即奇进偶不进。á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
例如:2.0500.1)→2.0á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
0.150
0.1)→0.2á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
1350
100)→1400á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
14*102
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
0.0345
(保留2位有效)0.034á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
4)负数修约同前á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
50.5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2á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
Aá àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
2Aá àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
24
1á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
A
的修约值á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
50.25á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
100.5á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
100á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
50.0
0.5á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
50.38á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
100.76á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
101á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
50.5
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
60.2单位修约时,先乘5,再除以5。同上。方法:小数间隔,先乘后除。á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
例如:将下列数修约到百位数0.2个单位(修约间隔20á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
Aá àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
5Aá àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
5A
的修约值(100 á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
A
的修约值(20á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
830á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
4150á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
4200á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
840
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
842á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
4210á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
4200á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
840
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
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)á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
Aá àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
A/5á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
A/5
1á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
A
5á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
442.5á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
88.5á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
88á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
440
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
442.52á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
88.504á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
89á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
445
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
541.9á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
108.38á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
108á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
540
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
243.5á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
48.72á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
49á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
245
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
347.5á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
69.50á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
70á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
350
á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
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á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
jutte - 2013/3/4 15:49:00
数据计算法则依据标准是哪个á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
dutuntun - 2013/3/24 9:06:00
进来看看á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
zhyby - 2013/3/24 9:33:00
依据标准是GB/T 8170—2008á àˆµS‹Dbbs.3c3t.com;´Nž~òø‹
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