查询词典 eigenvalue

In the final stage of the algorithm, the real and imaginary parts of the ith eigenvalue of a matrix are one-to-one related respectively to the direction cosines of the ith source relative to the x and y-axes.

在算法最后阶段构造一个矩阵，其第i个特征值的实部和虚部分别与第i个信号源相对X轴和Y轴的方向余弦一一对应。

Stabilizing control scheme for 2-D polynomial nonlinear systems is considered based on negative eigenvalue placement, which has potential value for back-stepping control development.

我们还给出了基于特征根负定配置的二维多项式非线性系统镇定控制，给后推法控制器设计带来潜在价值。

By using eigenvalue method and Bessel functions, the closed solutions of 3D transient temperature field in each layer of the cylinder were deduced.

利用特征值法和Bessel函数，导出了各层柱体中三维瞬态温度场的封闭解析解。

To match the boundary conditions, the modified Bessel functions are expanded to the planar wave in the interface. Then the eigenvalue equations of different polarizations are obtained by scalar approximation. At last, the relations between propagation losses and the states of polarizations, the geometric structures of the fiber, the refractive index and thickness of the polymer are calculated.

论文首先给出其等效折射率数学模型，在纤芯和包层中，光场用贝塞尔函数及虚宗量贝塞尔函数的求和表示，在聚合物和金属中用指数函数的求和表示，交界面上采用将虚宗量贝塞尔函数用平面波展开的方法匹配边界条件，然后利用标量近似求出极化D型光纤不同偏振态光场模式的本征值方程，最后通过数值计算得到光纤的传输损耗与抛磨平面和纤芯之间的距离，聚合物粘接材料的折射率和厚度，以及偏振态之间的关系。

Eigenvalue analyses, time domain simulations, and analyses compared with the conventional design for fixed-gain excitation controllers are all performed in order that the excellent performances in damping synchronous machine oscillations can be demonstrated.

为验证所提方法的有效性，特徵值分析，时域模拟分析及与传统设计固定式激磁控制器方法间的比较分析均将在文中一一地被加以执行。

Taking a single disk rotor with hinged ends as research object, to a different forward and backward whirling type the effect and its innate laws of the magnitude and acting direction of the constant torque on the stability are proposed by means of the eigenvalue theory of real linear systems.

以两端简支的单圆盘转子为对象，利用非线性振动理论的多尺度方法，研究了简谐扭矩作用下具有时变参数激励系统的近似解，指出系统出现不稳定组合式共振的可能性并给出了定常扭矩、简谐扭矩、外阻尼对不稳定区域边界条件的影响。

For high rank matrix,very hard directness get hold of their eigenvalue,and then,it is one important task that appraise cost with eigenvalues of digraphs,this text withal put up research.

对于高阶矩阵，很难直接求出它们的特征值，于是，对有向图的特征值的估值是1个重要的课题，本文对此进行了研究。

For high rank matrix,very hard directness get hold of their eigenvalue,and then,it is one important task that appraise cost with eigenvalues of digraphs,this text withal put up research.

对于高阶矩阵，很难直接求出它们的特征值，于是，对有向图的特征值的估值是一个重要的课题，本文对此进行了研究。

In this paper, the sparse approximation inverses and eigenvalue translation based preconditioners for Krylov subspace methods are thoroughly researched by situation of research at home and abroad, their internal mechanism are studied also.

本文在国内外关于Krylov子空间方法的稀疏近似逆和基于特征值转换的预处理方法研究状况的基础上，对它们进行了进一步研究，探讨了它们的内部机理。

Through comparing a lot of algorithm used in the matrices' eigenvalue calculations, we obtained the best algorithm for large scale sparse matrice.

通过比较一系列的用于矩阵本征值计算的方法，得到了用于大规模稀疏矩阵本征值计算的最好算法。

The use of the web to spread fears that flicking the switch on the LHC could create a Black Hole that could swallow up the Earth particularly concerned him, he said.

他说，使用互联网散布恐慌说启动LHC会生成一个可能吞噬地球的黑洞的做法让他感到忧虑。

Not a single word have I written down.

我一个字也没有写下来。