Sequence指令练习：抛物线包络线
2015-08-14 13:46
本范例演示如何使用GeoGebra的Sequence指令绘制抛物线的包络线。通过线段、垂直平分线和点等几何对象的序列生成，直观展示包络线的形成过程。该动态几何构造有助于理解解析几何中抛物线的切线性质及包络线概念，适合数学教学与探索。
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