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triDyn
Author:
dxdcn
GeoGebra
New Resources
平行線的判定
龙形曲线-分形龙2
百分數及其應用
异形操场
科赫雪花
Discover Resources
animation for kastin
三角函數角度轉換
GGB9
Copy of 費氏螺旋 (試算表)
圓外切四邊形
Discover Topics
Mathematics
Conic Sections
Parametric Curves
Matrices
Integral Calculus