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GeoGebra
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sin(弳)
Author:
陳柄何
GeoGebra
New Resources
折扣
平行線的判定
龙形曲线-分形龙
百分數及其應用
直線的斜率:水平變化 & 鉛垂變化
Discover Resources
拋物線
三圓相切
Ambiguous Cylinder illusion
試算表應用
Copy of 劉徽的「割圓術」
Discover Topics
Symmetry
Histogram
Parallelogram
Cone
Calculus