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Author:
chengshihfeng
GeoGebra
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三半圓間的相切圓(Codex╱2026.10.07)
近似值：有效數字
美國國旗 (Codex 版)
國旗 (作圖步驟直接餵給 Claude)
Claude 解幾何題
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拋物線
小四平面圖形學習單
分段函數
雙曲線的幾何性質
诱导公式六（90°-α）
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Vectors 2D (Two-Dimensional)
Distributions
Sequences and Series
Sphere
Natural Numbers