椭圆的定义与双圆构造法
2018-05-01 00:23
本范例演示了如何通过几何作图的方法，利用两个圆来构造椭圆并直观展示椭圆的定义。通过构造交点、线段和轨迹，动态展示椭圆上任意一点到两个焦点的距离之和为定值的几何性质。该构造过程涉及圆、圆弧、线段、正交线及轨迹等基础几何对象，是理解圆锥曲线定义和几何作图的优秀互动演示。
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