特征值

In particular,the phase function of the disturbance wave system is solved by uting the characteristic theory of partial differential equation and an expan sion of Orr-sommerfeld eigenvalue problem,insteade of using the disturbance model which was given previously.

其特点是。应用偏微分方程特征理论以及O－S方程特征值的展开，求解扰动波的相函数而不是预先给定扰动波的波动形式。

The stability condition of the steady-state motion is got from the roots of the characteristic equation.

并指出多数情况下还要借助数值方法来讨论有关特征方程的特征值问题。

Based on the atomic characteristic value, a novel group distance parameter and connectivity indexX were set up.

利用原子特征值建构一种新的基团距离参数和连接性指数X。

The results show that K-L transformation is an effective means to attenuate noise and improve signal noise ratio, and the effect of inhibition of the noise with K-L transformation is associated with the number of characteristic value.

结果表明，K-L变换可压制噪声提高信噪比，去噪的效果与所选取的特征值的个数有关。

The method in this paper has been applied in pipe network calculations of Beijing outer hoop. The results indicate that the calculated precision of characteristic number in pipe pressure drop has been increased by about 10%.

并首次用于北京外环管网计算中，结果表明采用本文的方法使管道压降特征值的计算精度提高约 10%。

Similar matrices have the same characteristic polynomial , thus they have the same eigenvalues .

相似矩阵有相同的特征多项式，从而有相同的特征值。

To solve the characteristic polynomial and the eigenvalues of square matrices with higher order normally is not an easy way.

1引言在高等代数中，求一个n阶方阵A的特征值时，常用的方法是求解A的特征多项式|λE-A|的根。

Then the methods for solving the characteristic polynomial and the eigenvalues of square matrices using similar transactions are showed, and several examples are given.

然后指出了利用相似变换在求方阵的特征多项式以及特征值时的方法，并列举若干实例给予了说明。

Traditional ways of characteristic extraction often choose a certain number of the best character by intuition, physical meaning of characteristic root or predecessor's experience .

传统的特征选取方法，很多情况下都是凭直觉、特征值的物理意义或前人的经验来选出若干最好的特征，而本文采用解析的方法来指(来源：A2c1cBc1C论文网www.abclunwen.com)导特征的选取，更具有说服力。

Based on the e-mail,we propose a method of characteristic value extraction in this paper.

利用电子邮件的特点提出了一种面向电子邮件分类处理的特征值提取方法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。