In this paper,two theorems on chord at contact equation of a nonsingular conic have been proved.
证明了非退化二次曲线切点弦方程的两个定理。
Improvement of designing flat gauge of quadratic aspherical surface;
二次曲线非球面片状样板设计方法的改进
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。
The circular points are really a degenerate conic.
虚圆点实际上是一退化的二次曲线。
MAC Backoff Algorithm for WLAN Based on Quadratic Curve
基于二次曲线的无线局域网MAC退避算法
Ways for the Simplification and Drawing of the Binary Curve Equation;
二次曲线方程化简与作图的简易方法
The Classification and Simplification of the Conic Equation by Using Square Formulation;
用配方法对二次曲线方程分类与化简
conjugate lines in a conic
二次曲线的共轭直线
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
Parameterized Drawing of quadric intersection in AutoCAD;
在AutoCAD中实现二次曲面交线的参数化绘制
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
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
Determination of critical edge pressure and plastic zone for subsoil considering quadratic curve as mohr envelop
二次曲线作为Mohr包线时的地基塑性区
Fitting Conic to Scattered Data in a Plane
平面上散乱数据点的二次曲线拟合
a curve or surface whose equation (in Cartesian coordinates) is of the second degree.
方程式是二次方程式的曲线或表面。
