查询词典 round off error

Since the encipher process and the decipher process are similar to those of encoding and decoding for error-correction, the Complex-Rotary Code may serve the functiens of both data encryption and error-control, an...

由于加密解密过程和纠错编码译码过程类似，复数旋转码可以同时完成数据加密和差错控制功能，从而能够构造出一种包括数据加密、纠错和调制环节的多功能组合式传输器。

He proved that:if the total moving times of mesh M is a finite number and independent ofΔt andh.the L2-norm error estimate is optimal;if Mh is independent ofΔt and bounded,energy norm error estimate is optimal.

并证明了当网格变动次数M是不依赖于Δt和h的有限数时，近似解与真解的L2误差估计是最优的；当Mh不依赖于Δt且有界时，能量模误差估计最优。

In 10.2.0.4 database alert log the following error appears: ORA-00494: enqueue held for too long (more than 900 seconds) This error can also be accompanied by ORA-600 [2103] which is basically the same problem - a process was unable to obtain the CF enqueue within the specified timeout (default 900 seconds).

ORA-00494或许还会伴随 ORA-600 [2103]错误的出现，这是Oracle10.2.0.4中引入的一个行为改变。在Oracle10.2.0.4中，如果一个进程在指定的时间（默认900秒）内无法获得CF锁，则CF锁的执行进程会被kill。从Metalink上可以发现，CF enqueue相关的bug是相当的多，10.2.0.4这个行为的引入，估计是Oracle视图对这个问题做出解决的一种尝试。

As mentioned earlier, the linear form of a consistent error and the error curve in line with the quadratic equation of the curve, with a predictable size and shape.

如前所述，线性误差具有一致的形式，且误差曲线符合二次方程的曲线，具有可预测的大小和形状。

Secondly, the error equation is equivalent to the discrete switched system related to the hop count of the wireless transmission, and the stability of the error system is proved.

然后将误差方程等效为与无线传输跳数相关的离散切换系统，并证明了误差系统的稳定性。

Besides, a new algorithm is used to draw track error band, which guarantees track error band to parallel with ship's course.

由于原来的船舶航迹控制显示系统为DOS环境下用C语言编程实现的，显示不够美观[1] 。

The simulation data show that the average error of land surface temperature is below 0.5℃, and the error of emissivity in band 11~14 is below 0.007(band 11,12)and 0.006 (band 13,14), respectively.

利用辐射传输模型MODTRAN 4模拟数据进行反演及验证分析，结果表明，神经网络能够提高算法的精度和实用性，反演的地表温度平均误差为0.5 ℃，反演的发射率平均误差分别在0.007(11、12波段)和0.006(13、14波段)以下。

The error threshold becomes a narrow band which broadens and shifts toward large values of error rate with increasing fluctuation.

误差阈变宽，并且在涨落增加时向大的突变率方向移动。

Thirdly, three indexes are given to measure the precision of the line uncertainty based on the e model: the visualization graph, the average error band width and the error band area.

给出了基于该模型衡量线元位置不确定性的三种度量指标：可视化图形、平均误差带宽和误差带的面积。

Secondly, the analytic expressions of the error band boundary line for the s model of line segment are deduced, the parameter equations of the error band boundary are gotten.

考虑实用性和合理性，将线元看成离散点的集合，将线的不确定性看成点的不确定性的聚合体，将线元的位置不确定性模型看成以各点误差椭圆的长半轴E为半径的误差圆的聚合体，建立了以线元上任意点处的误差椭圆的长半轴E为带宽的线元不确定性ε模型。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。