zhyby - 2013/1/23 15:56:00
数字修约的规则á àµSDbbs.3c3t.com;´N~òø
1、á àµSDbbs.3c3t.com;´N~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 àµSDbbs.3c3t.com;´N~òø
2、á àµSDbbs.3c3t.com;´N~òø
数字修约的进舍规则á àµSDbbs.3c3t.com;´N~òø
(1)拟舍弃数字最左一位数小于5时,则舍去,即4舍5入。á àµSDbbs.3c3t.com;´N~òø
例如:13.2476(0.1)→13.2á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
13.2476(0.01)→13.25á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
13.2476(1)→13á àµSDbbs.3c3t.com;´N~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1)á àµSDbbs.3c3t.com;´N~òø
例如:1167(100)→1200á àµSDbbs.3c3t.com;´N~òø
12*102á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
1167(10)→1170á àµSDbbs.3c3t.com;´N~òø
117*10á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
10.502(1)→11á àµSDbbs.3c3t.com;´N~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(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。á àµSDbbs.3c3t.com;´N~òø
例如:2.050(0.1)→2.0á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
0.150(0.1)→0.2á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
1350(100)→1400á àµSDbbs.3c3t.com;´N~òø
14*102á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
0.0345(保留2位有效)0.034á àµSDbbs.3c3t.com;´N~òø
(4)负数修约同前á àµSDbbs.3c3t.com;´N~òø
(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。á àµSDbbs.3c3t.com;´N~òø
Aá àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
2Aá àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
24(1)á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
A的修约值á àµSDbbs.3c3t.com;´N~òø
50.25á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
100.5á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
100á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
50.0(0.5)á àµSDbbs.3c3t.com;´N~òø
50.38á àµSDbbs.3c3t.com;´N~òø
100.76á àµSDbbs.3c3t.com;´N~òø
101á àµSDbbs.3c3t.com;´N~òø
50.5á àµSDbbs.3c3t.com;´N~òø
(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。á àµSDbbs.3c3t.com;´N~òø
例如:将下列数修约到百位数0.2个单位(修约间隔20)á àµSDbbs.3c3t.com;´N~òø
Aá àµSDbbs.3c3t.com;´N~òø
5Aá àµSDbbs.3c3t.com;´N~òø
5A的修约值(100) á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
A的修约值(20)á àµSDbbs.3c3t.com;´N~òø
830á àµSDbbs.3c3t.com;´N~òø
4150á àµSDbbs.3c3t.com;´N~òø
4200á àµSDbbs.3c3t.com;´N~òø
840á àµSDbbs.3c3t.com;´N~òø
842á àµSDbbs.3c3t.com;´N~òø
4210á àµSDbbs.3c3t.com;´N~òø
4200á àµSDbbs.3c3t.com;´N~òø
840á àµSDbbs.3c3t.com;´N~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 àµSDbbs.3c3t.com;´N~òø
Aá àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
A/5á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
A/5(1)á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
A(5)á àµSDbbs.3c3t.com;´N~òø
442.5á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
88.5á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
88á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
440á àµSDbbs.3c3t.com;´N~òø
442.52á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
88.504á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
89á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
445á àµSDbbs.3c3t.com;´N~òø
541.9á àµSDbbs.3c3t.com;´N~òø
108.38á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
108á àµSDbbs.3c3t.com;´N~òø
á àµSDbbs.3c3t.com;´N~òø
540á àµSDbbs.3c3t.com;´N~òø
243.5á àµSDbbs.3c3t.com;´N~òø
48.72á àµSDbbs.3c3t.com;´N~òø
49á àµSDbbs.3c3t.com;´N~òø
245á àµSDbbs.3c3t.com;´N~òø
347.5á àµSDbbs.3c3t.com;´N~òø
69.50á àµSDbbs.3c3t.com;´N~òø
70á àµSDbbs.3c3t.com;´N~òø
350á àµSDbbs.3c3t.com;´N~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 àµSDbbs.3c3t.com;´N~òø
jutte - 2013/3/4 15:49:00
数据计算法则依据标准是哪个á àµSDbbs.3c3t.com;´N~òø
dutuntun - 2013/3/24 9:06:00
进来看看á àµSDbbs.3c3t.com;´N~òø
zhyby - 2013/3/24 9:33:00
依据标准是GB/T 8170—2008á àµSDbbs.3c3t.com;´N~òø