Conics Projective Geometry and Application of the Nature of the Discussion
射影二次曲线的几何性质讨论及应用——二元二次多项式因式分解的理论
the curve structure and projective structure of the normal quadric surface;
常态二次曲面的曲线结构和射影结构
Projection Classifly the Conics at Projective Space of Dimension 2;
二维射影空间的二级曲线的射影分类
This paper studies the algebraic condition of degenerate conic with ray homogeneous coordinates. Based on the study, the singular point of degrnerate conic is further discussed.
用射影齐次坐标研究了二次曲线退化的代数条件，从而进一步讨论了退化二次曲线上的奇异点。
Conic sections of different kind are projection graph, in which there are possibility to set perspective construction.
所有二次曲线皆为射影形,它们之间存在建立透射结构的可能性。
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
Application of conic perspective transformation in engineering plot
二次曲线透射变换在工程图学中的应用
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
conjugate lines in a conic
二次曲线的共轭直线
Based on the principle of polar transformation in projective geometry, the authorproposes and proves that two conics on any quadrics are perspective corresponding to each other.
根据射影几何学中的配极对应原理，提出并证明了任意一个二次曲面上的两条二次曲线为透视对应。
conic self-programming controller
二次曲线自编程控器
diauxic growth curve
二次[两期]生长曲线
conjugate diameters of a conic
二次曲线的共轭直径
family of confocal centred conics
共焦有心二次曲线族
conjugate lines in a quadric
二次曲面的共轭直线
tangent-cone of a qualric
二次曲面的切线锥面
Curvature monotony condition Tor the quadratic rational B spline curves.
二次有理B样条曲线曲率单调条件
Classification of Points in Special Position with Respect to Low Degree Curves on Projective Plane;
射影平面上关于低次曲线位置特殊的点集的分类