椭圆的定义与几何作图
2018-05-01 00:21
本范例演示了椭圆的几何定义及其构造过程。通过给定两个定点（焦点）以及利用两个辅助圆的交点，结合垂线和线段构造，最终使用轨迹命令生成椭圆。该动态几何模型直观地展示了椭圆上任意一点到两焦点的距离之和为常数的核心性质，适用于圆锥曲线和解析几何的教学与学习。
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