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模擬圓規
Author:
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
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算柱 (兩位數)
畫出對稱圖形
世界平面地圖 (Codex╱2026.10.07)
Nested spiral octagon
美國國旗 (Codex, 2026.10.06)
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模版
多重刻度磅
邊長與三角形
直角坐標的旋轉變換
几何概型
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Set Theory
Upper and Lower Sum or Riemann Sum
Function Graph
Orthocenter
Dilation