基本解释：阶层曲线
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Based on the infinitely straight line,this thesis discusses the concepts of curve of second order s center,diameter,advance gradually in the line.以无穷远直线为基础讨论二阶曲线的中心、直径、渐近线等几个仿射概念,并联系解析几何中的有关性质,深入讨论它们之间的一致性。
On the other hand,the curve of second order composed with those points accord with above-mentioned factor is sure to an ellipse.运用高等几何中二次曲线的度量理论证明了椭圆的一个基本性质:椭圆上的任一点到两焦点的距离之和为定长;反之满足这一条件的点所构成的二阶曲线一定是椭圆。
This Paper introduces three methods that have never appeared in the ordinary textbooks to solve the asymptotic equation of normalcy curve of second order: using two conjugate drams, involutory correspondence and trangent passing the center.本文介绍一般教课书里不曾介绍的常态二阶曲线渐近线方程的三种求法 :利用两直径共轭求法、利用对合对应求法及利用过中心的切线求
It is a new development in historic linguistics to judge the genetic relation of languages by the Curve theory of Ranks put up by Prof.用核心词的阶曲线来判定语源关系,是陈保亚对历史语言学研究的最新发展。
The Simplification Problem About Equtionof Curve of Order 2 on Projective Plane;射影平面上二阶曲线方程的化简问题
Several Methods to Solve Asymptotic Line of Curve of Second Order on the Projective Plane;射影平面上二阶曲线渐近线的几种求法
Equivalence of the Geometric Definition and the Algebraic Definition for the Second Order Curves;二阶曲线的几何定义与代数定义的等价性
The Sufficient and Essential Condition of Collinearity of Diagonal Points of a Complete Six-Point Shape Inscribed in the Curve of Second Order;内接于二阶曲线的完全六点形对边点共线的充要条件
A Adjoint Point of a Quadratic Curve Which Contact Three Side of a Fixed Trangle and Its Distribution相切于定三角形三边的二阶曲线的伴随点及其分布
The butlerfly law of the circle is applied to the quadratic curve and a simple demonstative method is also given.将圆上的蝴蝶定理推广到二阶曲线上，并给出解几“名题”一种简易的证明方法.
Exact Observability for Second Order Quasilinear Hyperbolic Equations二阶拟线性双曲型方程的精确能观性
The Solving Theorem of Second Order Linear Hyperbolic Equation;二阶线性双曲型方程利用线性变换求解定理
The Application of Differential Equation of Second Order in the Irrelative Path s Curvilinear Integral;二阶微分方程与路径无关的曲线积分的解
Simulate to single and double-order systems with foxpro2.5;在Foxpro2.5中仿真自控一、二阶系统的响应曲线
Exact Boundary Controllability for Second Order Quasilinear Hyperbolic Equations二阶拟线性双曲型方程的精确边界能控性
Feature Extraction of Sectional Curve in Reverse Engineering Based on Two Orders Discrete Curvature基于二阶离散曲率的截面线特征提取算法
conjugate lines in a conic二次曲线的共轭直线
Study and Application of C-Bézier Curves and Surfaces of Degree n;高阶C-Bézier曲线曲面性质研究及其应用
Degree Reduction of the Said-Ball Curves and Surfaces;Said-Ball曲线曲面的降阶逼近
Research on Approximate Degree Reduction for Interval Rational Bezier Curves and Surfaces;区间有理Bezier曲线、曲面的降阶逼近研究
The Study of Degree Reduction Approximation Algorithm for Wang-ball Curves and SurfacesWang-ball曲线、曲面的降阶逼近算法的研究
conic self-programming controller二次曲线自编程控器
