抛物线的折纸构造
2016-05-21 01:52
本范例演示通过折纸方法构造抛物线的几何过程。利用焦点与准线性质，作点到焦点线段的中垂线（即折痕），其包络线形成抛物线。构造综合运用了直线、线段、中垂线、正交线及交点等对象，直观展示抛物线的几何定义与轨迹特性。
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