查询词典 triangular form

In Chapter three, by constructing a special partitioned matrix and studying the fast triangular factorization of its inverse matrix, we respectively give fast algorithms for the minimal norm least squares solutions of linear equations which coefficient matrices are n×m Toeplitz type matrices and Vandermonde-Loewner type matrices with full column rank.

第三章通过构造特殊分块矩阵并研究其逆矩阵的快速三角分解，分别给出了求以秩为m的n×m阶Toeplitz型矩阵和Vandermonde-Loewner型矩阵为系数阵的线性方程组极小范数最小二乘解的快速算法，并通过算例将新算法与已有的法方程组的方法和正交化方法作了比较。

Fast algorithm of minimal norm least square solution for Cauchy linear system;2. For the m×n Cauchy-type matrix with full column rank,the fast algorithm of the minimal norm least square solution to the linear system Cx=b was obtained by construction of a special block matrix and study of the triangular decomposition.

对于秩为n的m×n阶Cauchy型矩阵C，通过构造特殊分块矩阵并研究其三角分解，进而得到了线性方程组C x=b的极小范数最小二乘解的快速算法，所需运算量为O+O(n2)，而通常构造法方程组的方法所需运算量为O(m n2)+O(n3)，用正交化法虽然避免了构造法方程组，但所需的运算量更大些。

As an application, we also describe the Jordan automorphisms of the algebra of upper triangular matrices over commutative rings, and give a sufficient and necessary condition for a commutative ring being connected.

作为应用，我们还刻划了交换环上的上三角矩阵代数的Jordan自同构，并给出了一个交换环是连通环的充要条件。

Related models of its and operation and compositor of triangular fuzzy number are introduced.

建立了它的模型以及三角模糊数的排序、运算，用类似于解决前一种模型的方法进行转化和求解。

Based on conformal mapping and differential geometry theory,a triangular mesh parametrization method by optimizing deformation energy is proposed in the paper.

本文首先基于保形映射和微分几何相关理论，定义了一种统一衡量参数化的角度变形和面积变形的变形能量。

In this paper a method of automatic mesh generation of triangular element is presented by using subdomain structure and isoparametric coordinate transformations for two-dimensional complex connected domain with multidielectric.

本文采用子区域结构，等参坐标变换方法，对具有多种介质的二维复连通区域，给出一种三角形单元的网格自动剖分方法。

At the first step, the predicted value is solved, which is a constant function on each triangular element.

第一步是求出单元常值近似的预估值，第二步是求Galerkin近似的修正值。

Because of the lot being of triangular shape located in a corner, the legal edification lines left the constructible area in the center, a steep incline of 40%, and finally, sun exposure and views towards the valley.

这个三角形地块位于一个角落，远离整个规划社区的中心，在它的北侧是一个坡度为40%的峭壁，当然它还拥有充足的阳光和优美的山谷景致。

A discrete method for contouring of high order triangular elements is presented in this paper.

该文提出一种画高次三角形单元等值线的离散方法。

This paper studies the mesh morphing in two aspects, one is the morphing algorithm of planar triangular mesh based on the convex combination.

另一种是基于角度插值的三角网格变形算法，这是一种仅通过插值角度来实现任意网格变形的方法。

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。