有效数的英文

effective number

significance

significand

significant digit

+更多解释...

significant figure

• 有效:    effective; valid; ...
• 数:    frequently; repeat ...
• 有效数据:    data valid; valid ...

例句与用法

1. The state is now home to an estimated 252 wolves
   州政府现在估计其有效数为252只。
2. Effective byte location
   有效数元组位置
3. The mean number of alleles per locus ( a ) is 1 . 8 , and the effective number per locus ( ae ) is 1 . 13
   8个，平均每个位点的等位基因有效数为ae = 1 . 13 。
4. All sse single - precision operations will , however , use a 24 - bit significand 8 - bit exponent , and sse2 double - precision operations will use a 53 - bit significand 11 - bit exponent
   但是，所有sse单精度运算都将使用24位有效数/ 8位指数，而sse2双精度运算将使用53位有效数/ 11位指数。
5. To modify the fp control word , then the run - time startup code will set the x87 fpu control word precision - control field to 53 - bits , so all float and double operations within an expression will occur with 53 - bit significand and 15 - bit exponent
   修改fp控制字，则运行库启动代码会将x87 fpu控制字精度控制字段设置为53位，这样，表达式内的所有浮点运算和双精度运算都以53位有效数和15位指数进行。