Formula of an element in the shift and rotation matrix. Simplicity and compactness are clearly visible.
转换旋转矩阵中要素的公式，这里我们可以发现简洁和紧促清晰可见。
The method for handling the singularity of the self-impedance element in MoM matrix is also presented.
对矩量法矩阵中自阻抗元素的奇异性处理方法也作了详细介绍。
In the third part, the concept of coupling element is derived from the vibration analysis of a four-degree spring-oscillator system, and a whole transfer matrix method is developed on the basis of it.
第三章从一个四自由度弹簧振子的振动分析问题提出耦合单元的概念，建立了多转子系统振动分析的整体传递矩阵法；
Method for computing the element restoring force, rather than the stiffness matrix, is the most important factor that determines the accuracy of a geometric nonlinear finite element problem.
几何非线性单元的精度主要决定于单元恢复力的计算方法，刚度矩阵对单元精度的影响很小。
Two approaches to reduce the element value and condition number of matrix are proposed.
本文还提出降低矩阵元素值大小和矩阵条件数的两种方法。
How do I randomly pick an element in each column of a matrix in MATLAB?
我随机选择一个元素如何在MATLAB矩阵的每一列吗？
The matching process is mapped onto a matrix, where each element represents a pair of possible matching pixels.
该方法将匹配问题映射为一个矩阵，其元素代表可能匹配的像点。
A stiffness matrix of simple rectangular plate bending element with 12 parameters expressed in explicit form is derived.
推导了以显式表示的12个自由度的简单矩形板弯曲元素刚度矩阵。
The precise tangent stiffness matrix of space cable element is derived in this paper by using equilibrium equation.
本文采用状态平衡方程推导出用超越函数表示的空间索单元切线刚度矩阵的精确表达式。
By using the moment-curvature relationships of the member section, the inelastic element stiffness matrix is derived directly from the slope-deflection equation of clastic member.
利用杆件截面的弯矩—曲率关系，可以直接由弹性杆件的转角—位移方程建立单元的非线性刚度矩阵。
The stiffness matrix of synthetic dual plate-spring interlayer element is deduced.
导出了双层板―性夹层的综合单元刚度矩阵。
The interference effects of matrix element Fe and high concentration elements Nd, Dy, Co, B on impurity elements were studied.
研究了基体元素铁、主量元素钕、镝、钴、硼对杂质元素的光谱干扰情况；
The super element stiffness matrix and the stiffness contribution of substructures to the whole structure are developed.
推导了超级元刚度矩阵及子结构参与协同承载时对整体结构的刚度贡献。
It can automatically search the node of the new boundary through symbolic matrix, and calculate the unloading of the node by stress of element.
通过标志矩阵自动搜索新的开挖边界节点，并由单元应力计算出节点的卸荷荷载。
According to section stiffness matrix and available displacement mode, element stiffness matrix of elastoplastic stage was derived in this paper.
可基于截面刚度矩阵以及现有的位移模式推导出弹塑性阶段的单元刚度矩阵。
On the basis of force density matrix of cable element, a force density matrix of triangle membrane element is introduced.
本文在已有的索单元力密度矩阵的基础上推导了三角形膜单元的力密度矩阵。
It is proved in a complicated optical system that the diffraction integration in terms of ray matrix element is the right solution 'for paraxial equation.
对复杂光学系统证明了光线矩阵元表达的衍射积分是旁轴波动方程的准确解。
The maximum matrix element principle of fuzzy cluster analysis is combined with the fuzzy ISODATA cluster analysis in this paper, thus a fuzzy mixed cluster method is established.
本文将模糊聚类最大矩阵元原理与基于数据迭代为基础的模糊ISODATA聚类分析相结合，形成模糊混合聚类法。
The influence coefficient matrix of the linear axisymmetric triangular element and the input vector expression are derived.
推导了轴对称线性三角形元的影响系数矩阵和输入向量公式；
Based on the thermal balance equation of heater element, the matrix for the cyclic functional method is established and the rules to fill this matrix are represented detailedly in this paper.
基于循环函数法的主导思想，通过对“加热单元”列能量平衡方程，构建了循环函数法的矩阵表达式，并对矩阵填写规则进行了详细阐述。
In this paper, a improved geometric stiffness matrix of a column element considering axial force-lateral displacement effects is derived.
本文推导了柱单元受大轴力和单元变形过大两种情况下的单元几何刚度矩阵。
The exact transfer matrix formulae of element and node are derived and the formulae of statics analysis for bars are obtained according to transfer matrix principle.
文中导出了单元和节点的正确传递矩阵公式并根据传递矩阵原理获得了杆件静力分析的公式。
Both the general spring coefficient matrix of flexible connector and the mass matrix of discrete element are off-diagonal.
推导出一般情形下柔性连接元的广义弹簧系数矩阵和刚体元的质量矩阵都是非对角的。
According to the perturbation theory, a distribution law of matrix element in secular equation is discovered in degenerate state and wave function property of the hydrogen atom.
根据简并态微扰理论和氢原子波函数的性质，得到久期方程中微扰矩阵元的分布规律。
The finite element method is used to analyze the relationship between strength and stress of the particle reinforced iron matrix composites and the shapes, sizes and fraction volume of the particles.
采用有限元方法分析了颗粒增强铁基复合材料强度和应力与颗粒形状、尺寸以及体积分数的关系。
The algorithm relaxed the restricted conditions by fuzzing the element of partition matrix in the iterative process.
算法将迭代过程中的分区矩阵“元素化”放宽了限制条件。
Based on the theory of the bending of non-prismatic beam, the paper has derived a rigidity matrix and the equivalent node load of the rigid-frame element with variable sections.
本文从非棱柱形梁的弯曲理论出发，推导出了变截面刚架元的单元刚度矩阵和等效结点载荷。
Every storey with a same section is taken as a calculation element. The element matrix, section matrix and transfer matrix of every element are derived by the differential equations.
根据变截面框筒结构的截面沿高度为阶形变化的特点，以每个相同截面的层作为一个计算单元，每个单元由微分方程组导出其单元矩阵、截面矩阵和传递矩阵。
Every storey with a same section is taken as a calculation element. The element matrix, section matrix and transfer matrix of every element are derived by the differential equations.
根据变截面框筒结构的截面沿高度为阶形变化的特点，以每个相同截面的层作为一个计算单元，每个单元由微分方程组导出其单元矩阵、截面矩阵和传递矩阵。
应用推荐