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数学史：毕达哥拉斯树
Author:
代国兴 田立新
GeoGebra
New Resources
中華民國國旗 (Codex╱2026.10.06)
找出對稱軸
Earth with coastline
近似值：有效數字
世界平面地圖 (Codex╱2026.10.07)
Discover Resources
蝴蝶線ggb
四角柱
貝式曲線 (Bezier Curve)
Graph of Sine Function 正弦函數圖像
繪畫正方形
Discover Topics
LCM and GCD
Coordinates
Similar Triangles
Linear Equations
Planes