椭圆的光学反射性质演示
2017-02-03 13:51
本GeoGebra范例演示了椭圆的光学反射性质。通过构造椭圆的焦点、切线与法线，展示从椭圆一个焦点发出的光线经椭圆边界反射后，必定经过另一个焦点的几何原理。范例结合了向量、切线、正交线及线段等几何对象，直观呈现了入射角与反射角相等的物理与几何规律，适用于解析几何与圆锥曲线光学性质的教学与探索。
所属专题
圆锥曲线
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