椭圆第一定义
2019-07-31 02:57
本范例演示了椭圆的第一定义，即平面上到两个定点（焦点F1和F2）的距离之和等于常数的动点轨迹。通过GeoGebra的几何作图工具，如圆、线段、中垂线和交点，动态展示了椭圆上任意一点到两焦点的距离关系，帮助直观理解圆锥曲线中椭圆的几何性质与轨迹生成过程。
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