The new criteria for the uniqueness of limit cycles of the quadratic systems have been given by using the quadratic curve without contact.
借助于一个变换和一条无切二次曲线,研究一般的二次系统极限环的唯一性,得到若干新的判别 法,它们分别用于判定单个奇点外围的极限环的唯一性、两个奇点外围极限环的同时唯一性、两 奇点外围的极限环不能同时多于一个。
The resonance characteristics of a set of pri nt ed loop antennas are analyzed by means of a superquadric representation for clos ed curves.
本文基于环形几何上的超二次曲线表示 ,分析一组印刷环天线的谐振特性。
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
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
C~1 Blending Interpolation and Blending Surfaces for Quadratic Function;
二次函数C~1超限插值与曲面拼接
Reconstruction of Superquadric 3D Models Based on Superquadric Projection Rim
基于投影边缘的超二次曲面三维建模
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。
The circular points are really a degenerate conic.
虚圆点实际上是一退化的二次曲线。
The Equivalence of Discrete Logarithms between Elliptic Curve and Real Quadratic Function Field;
椭圆曲线与实二次函数域的DLP等价
Determining Three-Dimensional Motion of Rigid Object from Image Sequence Using Correspondences of Conic Curves;
利用二次曲线对应确定刚体三维运动
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