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椭圆画法1--参数方程法
Author:
冯伟冀
GeoGebra
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龙形曲线-分形龙
第八周的作业
球体的截面
椭圆内切圆链
第八周作业
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微積分基本定理
旋轉的概念
Parallel lines
分页显示及分步显示
Degrés vers radians
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Rectangle
Dilation
LCM and GCD
Angles
Fractions