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GeoGebra
GeoGebra Classroom
GeoGebra
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星罗棋布
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GeoGebra
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双心四边形
第三周作业效果演示
第八周作业
盈利與虧蝕
龙形曲线-分形龙2
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testing
向量合成
畢氏定理完成20170330
放射狀旋轉圖形(1)
Collatz Conjecture 考拉兹猜想
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Optimization Problems
General Quadrilateral
Centroid or Barycenter
Trapezoid
Integers