摘要
用几何画板对一图形进行了探究,此图形不同情形分别得到圆锥曲线中的椭圆、双曲线与抛物线,进而得到其对偶图形,最后给出相应圆锥曲线的方程。
In this paper,a figure is explored with geometric sketchpad.Ellipse,hyperbola and parabola in the conic curve are obtained in different cases,and then the dual figure is obtained.Finally,the corresponding conic curve equation is given.
作者
陈咸存
CHEN Xiancun(Heqin Honors School of Childhood Education,Ningbo Childhood Education College,Ningbo 315336,China)
出处
《宁波教育学院学报》
2020年第6期121-124,共4页
Journal of Ningbo Institute of Education
关键词
几何画板
圆锥曲线
对偶图形
geometry sketchpad
conic curve
dual graphics
