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Author:
zhujianpeng
GeoGebra
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龙形曲线-分形龙
盈利與虧蝕
异形操场
双心四边形
常见四边形是否是双心四边形
Discover Resources
二次函数的条件最值
均分除法（分數÷整數）
倍數的判別
數學電腦繪圖與解題
三角函數的描點與圖形
Discover Topics
Upper and Lower Sum or Riemann Sum
Inequalities
Polynomial Functions
Numbers
Quadrilaterals