Conics is a difficult section in the Analytic Geometry for senior high school students.
圆锥曲线是高中生解析几何学习中的一个难点。
High School: Algebra, Geometry, Advanced Algebra, Trigonometry, Pre-Calculus (conics and limits)?
高中：代数，几何，高等代数，三角学，？(圆锥和极限)？
This paper deals with the graphics of the intersections and common tangents of two conics according to projective geometry .
在射影几何的范畴内，全面地论述了两二次曲线的公有点和公切线的图解问题。
Apply the theory of pencil of conics to reveal the geometric significance of simultaneous equations of second degree with two unknows.
应用二次曲线束理论揭示解二元二次方程组的几何意义。
In this paper, instead of corresponding image points which are widely used in the literature, corresponding image conics are used to calibrate a rotating camera.
研究探讨了一种基于平面二次曲线的纯旋转摄像机自标定方法。
The parallel-connection and variable-speed operation characters of the centrifugal pump groups are studied by conics fitting of the character curves in the high efficiency area.
通过对离心式水泵高效工作区的性能曲线进行二次拟合，分析了离心式水泵机组并联调速运行特性。
The parallel-connection and variable-speed operation characters of the centrifugal pump groups are studied by conics fitting of the character curves in the high efficiency area.
通过对离心式水泵高效工作区的性能曲线进行二次拟合，分析了离心式水泵机组并联调速运行特性。
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