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Author:
蘇溥鈞
GeoGebra
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撒针估算面积实验
盈利與虧蝕
比較五件物件的重量
中华人民共和国国旗
龙形曲线-分形龙
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MFS Pyth Thm 1
找找看三角形外接圓的圓心在哪？
Tangent to circle
Pyth. theorem
C60足球模型展开（单色版）
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Arithmetic
Complex Numbers
Differential Calculus
Geometric Transformations
Rotation