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切線性質
Author:
Y.W. Liu
GeoGebra
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國旗 (作圖步驟直接餵給 Claude)
伊朗國旗 (Codex╱2026.10.07)
近似值：有效數字
Claude 解幾何題
世界平面地圖 (Codex╱2026.10.07)
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簡單的回饋「笑臉」與「哭臉」
二次函數的平移(基本)
Billiard Ball
Drag A or X
平面向量的三點共線定理
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Parabola
Median Value