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Author:
黃斌
GeoGebra
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撒针估算面积实验
龙形曲线-分形龙2
直線的斜率
垂直線的斜率
圓的切線方程
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F5 rev exercise Q16b
二次曲線的準線與焦點
旁心
正十二面體裁邊 (Chamfered Dodecahedron)
绘本1-平面直角坐标系复习
Discover Topics
Cosine
Functions
Cube
Curve Sketching
Rhombus