查询词典 rectangular matrix

By using the Euclidean algorithm and invertible linear transformation over an integral ring, the solution of integral indeterminate equations of the first degree was investigated in theory, and its matrix solution based on the elementary matrix transformation was proposed.

用欧几里德算法和整数环上的可逆线性变换，从理论上对整数一次不定方程组的解进行了深入研究，提出了用矩阵的初等变换求解整数一次不定方程组的矩阵解法，并利用MATLAB数学软件开发了相应的计算机程序。

It Includes Determinant, Datrix and its Operations, the Elementary Transformation of Matrix and Linear Equations, Vector Group's linear, Similar Matrix and the Second Type, Linear Space and Linear Transformation.

内容包括行列式，矩阵及其运算，矩阵的初等变换与线性方程组，向量组的线性相关性，相似矩阵及二次型，线性空间和线性变换等。

Ii The problems of optimal control of piecewise linear affine descriptor systems are studied by using some elementary matrix transformations and line matrix inequalities.

二、运用初等矩阵变换和线性矩阵不等式，初步研究了分段线性仿射广义系统的二次最优控制问题，得到了系统二次最优控制的上界、下界，估计成立的条件。

The article by several opposite examples illustrated the former method of finding vector group's maximum linearly independent vector group is imperfect, sometimes even lead to wrong results. The method is that make use of row vector as matrix and then change matrix by performing elementary row operation.

本文通过几个反例说明了在求向量组的极大无关组时，以往普遍使用的以向量为行向量作矩阵，再对矩阵作初等行变换的方法是不完善的，甚至会导致错误的结果。

In addition,in the elementary theory of number through making use of primary transformation of matrix the quetient and remainder of first-degree.polynomial could be caculatedand this method should be spread applied to mth-degree polynomial,at last,the application of primary transformation would be spreaded in block matrix,here are the instances and explanation.

另外，在初等数论中，还可以用矩阵的初等变换来求一次带余除法的商及余式，并将其推广到一般除式为次多项式。最后把初等变换在分块矩阵中进行推广，并举例说明。

The mass matrix and the stiffness matrix of the elements are derived with energy method.

不必要的振动和噪声会降低结构的使用性能并污染环境，因此，结构的减振降噪问题一直是一个十分重要的课题。

To solve this problem,the equivalence relation of rough set theory is replaced by an asymmetrical similar relation,and from this relation,an asymmetrical similar matrix is defined,then a new heuristic algorithm with less space complexity that require core and knowledge reduction based on asymmetrical similar matrix is proposed,and an example is given to confirm the validity of the algorithm.

用非对称相似关系代替粗糙集理论中的等价关系，定义了非对称相似差别矩阵，提出了基于非对称相似差别矩阵的高效求核和知识约简算法。该算法无需改变初始不完备信息系统的结构，能直接处理缺省数据。实验结果表明，新算法所获得的决策规则简洁、高效，与缺省值无关。

Results The equivalent matrix equation is derived by the matrix transformation method.The parameter iterative algorithm and the sufficient and necessary conditions for the convergence are given.

结果基于矩阵变换方法导出了矩阵方程的等价形式，并构造出参数迭代格式，得到了格式收敛的充要条件。

Solving algorithm of minimum schema matrix relatived to equivalent representation of functional dependency based on schema matrix is discussed.

进而讨论了与函数依赖集等价表示相关的最小模式矩阵求解算法。

In the respect of pseudo dynamic test, the author explained the influencing factors of initial inputting stiffness matrix and the equivalent method of mass matrix of model.

在拟动力试验方面，指出了联机试验中初始刚度矩阵的影响因素，建立了模型质量矩阵的等效方法。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。