椭圆的第二定义及其轨迹演示
2020-03-10 00:38
本GeoGebra范例动态演示了椭圆的第二定义（焦点-准线定义）。通过构造焦点、准线以及动点到焦点与准线的距离之比，利用轨迹命令生成椭圆曲线。范例直观展示了当动点到定点的距离与到定直线的距离之比为小于1的常数时，其运动轨迹形成椭圆的几何过程，帮助学习者深入理解圆锥曲线的统一定义及离心率的几何意义。
所属专题
中职数学GeoGebra互动教学资源库
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