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周桂名
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GeoGebra
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中華民國國旗 (Codex╱2026.10.06)
幾何作圖題：切三圓（題目）
直角坐標平面上的旋轉變換
世界平面地圖 (Codex╱2026.10.07)
Nested spiral octagon
Discover Resources
過圓內一點與圓相切的圓
廣義三角函數
Temp file
二維點陣列變化
球體
Discover Topics
Exponential Functions
Cuboid
Difference and Slope
Multiplication
Vectors 3D (Three-Dimensional)