摘要
论述用平方变换的方法求具有公共对称轴线的二圆锥曲线的交点问题。
The mexthod of square transformation to obtain the intersection points of two conical sections that are of the common axis of symmetry is discussed.
关键词
平方变换
二圆锥曲线
交点
square transformation
projective correspondence
perspective correspondence
perspective axis
geomettric transformation
