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Ebbinghaus illusion
Author:
yiyi
GeoGebra
New Resources
斐波那契螺旋弧线（表格法）
平行線的判定
直線的斜率：水平變化 & 鉛垂變化
科赫雪花
第八周作业
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三棱锥的三视图
不規則圖形的周界(雙L)
S4 Quadratic Function
Copy of 用 Geogebra 模擬日照、影長變換
S2 Chapter11.2 選擇適當的三角比
Discover Topics
Sine
Vectors 3D (Three-Dimensional)
Addition
Numbers
Linear Functions