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三角格紋
Author:
Lin Ching Chieh
GeoGebra
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三半圓間的相切圓(Codex╱2026.10.07)
幾何作圖題：切三圓（題目）
國旗 (作圖步驟直接餵給 Claude)
世界平面地圖 (Codex╱2026.10.07)
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弦中點的軌跡
X^3 vs 3^X
三個硬幣的正面數
Sangaku
旋轉橢圓
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Quadratic Equations
Bar Chart or Bar Graph
Constructions
Square
Histogram