Three expressions of conic section and central force problem

Magnetic Field Intensity Distribution in the Space Surrounding a Conic Section Carrying Current

载流圆锥曲线空间磁场的分布

Determining the parameters of quadratic surface or conic section by optimization

用最优化方法确定二次曲面和曲线的参数

A Note on A Method of Reducing Equation of Conic Section

《化简圆锥曲线方程的一种方法》的注记

Research on Conic Section Comparison Integral Interpolation Algorithm of Numerical Control System

数控系统二次曲线比较积分插补算法研究二次采油体积波及系数

Conic section road border model put forward to the form characteristic of the border of road, the ones that have realized to identification line of lane which are followed in real time.

针对道路边界的形状特征提出的二次曲线道路边界模型，实现了对车道标识线的实时跟踪。

To Classify the Conic Section with Primary Alternation; A branch and bound algorithm for a kind of indefinite quadratic programming

浅谈用初等变换对二次曲线进行分类一类不定二次规划问题的分枝定界法

A curve or surface whose equation ( in Cartesian coordinates) is of the second degree. The circular points are really a degenerate conic.

方程式是二次方程式的曲线或表面。虚圆点实际上是一退化的二次曲线。

Locus of central point of the conic sections' segmental tangent line

圆锥曲线的切线段的中点轨迹

The Defect of Linear Congruent Generator and Improvement on It

线性同余发生器的缺陷及其改进

For given congruent real symmetric matrices A and B of n-th-order, the author gives here the general form of their complex congruent transformation.

对给定的合同的实对称n阶阵A和B，给出其复合同变换的一般表示形式。

Some Special Matrices Congruent with Diagonal Matrices

几类特殊矩阵与对角矩阵的合同

The relationship within non-degenerate linear substitutions which changes quadratic forms into gauge forms over real number field or complex number field and introduction the result into congruent matrices are discussed in this paper.

本文探讨了把实数域或复数域上的二次型化为规范形所采用的非退化线性替换之间的关系，并引入到矩阵的合同关系中。

Abstract: This paper discusses the relation between congruent matrices and similar matrices in linear algebra and their use in geometry

本文讨论了线性代数中合同与相似之间的关系及在几何中的应用

General Form of the Change of Matrix in Congruent Matrices

关于合同变换矩阵的一般形式

Both congruent and similarity of matrix are equivalence relations.

矩阵的合同关系、相似关系都是等价关系。

The Similar Transformation and Congruent Transformation of Block Matrix

分块矩阵的相似变换和合同变换

By means of congruent transformation in matrix, the method of transforming real quadratic form into standard form and the method of normal orthogonal basis are given in this paper.

借助矩阵的合同变换法，给出了化实二次型为标准形的方法、求标准正交基的方法，并给出了正定二次型判定定理的新证明。

A new concept of congruent matrix is introduced in the paper and its equivalent transformations are discussed.

本文引进了同馀矩阵的新概念，并讨论了它的等价变换。

Butterfly Mechanism consists of two congruent equilateral triangles.

蝶形单元是由两个全等的三角形组成。

Exploring the Best Method of Testifying the Congruent Right Triangles

探索直角三角形全等的最佳途径