查询词典 difference equation

The method of moments is an integral equation based numerical technique is to reduce the formal problem to a set of linear equations that can be solved by matrix inversion.

作为一种基于数字技术的积分方程，矩量方法用来将传统的问题简化为可以用矩阵转换来解决的一系列方程集。

Spinor matrix equation is a dynamical method that represents the spinor in classical mechanics by matrix form.

旋量—矩阵方程是将经典力学中的旋量概念以矩阵形式表示的一种动力学方法。

And then, the change of elastoplastic matrix, parameters of material mechanics performance with temperature were considered, from thermal elastoplastic constitutive relation and applying the theory of thermal elastoplastic increment, the theoretical finite element equation was established.

考虑了弹塑性矩阵、材料的力学性能参数随温度变化的因素，从热弹塑性本构理论出发，应用热弹塑性增量理论建立了热弹塑性有限元方程。

The condition of stabilization is given for the systems by using Lyapunov equation method and matrix norm properties, and a decentralized robust stabilization controller is designed.

运用Lyapuonv方程的方法结合矩阵的范数性质得到了系统可镇定的条件，并给出了一种分散鲁棒镇定控制器的设计。

By using algebraic Riccati equation and the matrix norm theory, the problem of fault-tolerant control for continuous systems based on regional pole assignment is studied.

利用代数Riccati方程和矩阵范数理论，研究了连续系统基于区域极点配置的容错控制问题。

Inverse eigenvalue problem; Constrained matrix equation problem; Procrustes problem; Matrix norm; Optimal approximation solution

矩阵逆特征值问题；约束矩阵方程问题； Procrustes问题；矩阵范数；最佳逼近解

The relationship between selecting range of controlled weighted factor and state matrix norm of discrete state equation is proposed when multi-step predictive selftuning control algorithm is adopted.

4提出了多步预测的自校正控制GPC算法控制加权因子的选择范围与离散状态方程状态矩阵范数之间的关系，给出了其它参数的选择方法，通过不同采样周期条件下仿真和实验研究与理论计算结果是一致。

Keywords constrained matrix equation problem;sub matrix constraint problem; matrix norm; optimal approximation solution;least-squares solution

约束矩阵方程问题；子矩阵约束问题；矩阵范数；最佳逼近解；最小二乘解

The new updating method is to minimize the error matrix norm under the condition of a quadratic constraint under which the mode orthogonality should be satisfied and the mass and stiffness matrices should be fitted into the eigen equation.

该方法是在质量矩阵和刚度矩阵满足正交性条件和特征方程的约束下，使修正矩阵的范数最小，将模型修正问题转化为一个带二次约束的最小二乘问题。

The way of solving matrix equation directly with primary transformation method is discussed with the premise of the matrix of coefficients being reversible, which makes the solving procedures more simple.

讨论了在系数矩阵可逆的前提下，如何用初等变换的方法直接求解矩阵方程，使求解过程更简化，同时给出一般线性方程组的初等变换直观解

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This new product will become our best seller.

这个新产品会成为我们最畅销的产品。