In this paper,two theorems on chord at contact equation of a nonsingular conic have been proved.

證明了非退化二次曲線切點(diǎn)弦方程的兩個定理。

Improvement of designing flat gauge of quadratic aspherical surface;

二次曲線非球面片狀樣板設(shè)計方法的改進(jìn)

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.

用射影齊次坐標(biāo)研究了二次曲線退化的代數(shù)條件，從而進(jìn)一步討論了退化二次曲線上的奇異點(diǎn)。

The circular points are really a degenerate conic.

虛圓點(diǎn)實(shí)際上是一退化的二次曲線。

MAC Backoff Algorithm for WLAN Based on Quadratic Curve

基于二次曲線的無線局域網(wǎng)MAC退避算法

Ways for the Simplification and Drawing of the Binary Curve Equation;

二次曲線方程化簡與作圖的簡易方法

The Classification and Simplification of the Conic Equation by Using Square Formulation;

用配方法對二次曲線方程分類與化簡

conjugate lines in a conic

二次曲線的共軛直線

conic self-programming controller

二次曲線自編程控器

diauxic growth curve

二次[兩期]生長曲線

conjugate diameters of a conic

二次曲線的共軛直徑

family of confocal centred conics

共焦有心二次曲線族

conjugate lines in a quadric

二次曲面的共軛直線

tangent-cone of a qualric

二次曲面的切線錐面

Parameterized Drawing of quadric intersection in AutoCAD;

在AutoCAD中實(shí)現(xiàn)二次曲面交線的參數(shù)化繪制

Curvature monotony condition Tor the quadratic rational B spline curves.

二次有理B樣條曲線曲率單調(diào)條件

the curve structure and projective structure of the normal quadric surface;

常態(tài)二次曲面的曲線結(jié)構(gòu)和射影結(jié)構(gòu)

Determination of critical edge pressure and plastic zone for subsoil considering quadratic curve as mohr envelop

二次曲線作為Mohr包線時的地基塑性區(qū)

Fitting Conic to Scattered Data in a Plane

平面上散亂數(shù)據(jù)點(diǎn)的二次曲線擬合

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線或表面。