two-variable matrix

According to the elastic catenary theory, the spatial catenary cable element used for finite element analysis of the structure is derived from the exact analytical expression. The precise expression of two-node cable element tangent stiffness matrix and the tension of cable end are educed.

根据弹性悬链线的理论解析解推导出适用于导线结构有限元分析的空间悬链线单元，得到了两节点索单元的切线刚度矩阵和索端张力的精确表达式。

In this paper, the authors give a representation of the relation matrix of the cardinal product of two partial ordered sets by the tensor product of their relation matrices, which helps to obtain a kind of method to check the associative law of binary operation.

利用矩阵的张量积给出了偏序集基数积的一种矩阵表示，得到了检验有限集合上的代数运算满足结合律的一种方法。

Two problem of the numerical radius on tensor power of matrix

关于矩阵张量积数值半径的两个问题

Representation of Factoring Theory by Matrix and the Calculation of Two Terminal Reliability of a Network

因子定理的矩阵表示及网络两终端可靠度的计算

Based on the matrix method, two mathematical models influenced by each extraction steam pressure loss and terminal temperature difference on thermal economy of unit are established.

本文基于矩阵法，分别建立了定流量条件下抽汽压损、加热器端差对机组热经济性影响的数学模型。