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奠基
Author:
tan90
奠基
GeoGebra
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中華民國國旗 (Codex╱2026.10.06)
長方體平面投影 (Codex版)
幾何作圖題:切三圓(題目)
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海龍公式與內切圓半徑
證平行四邊形 (對角相等)
o'clcok
各種四邊形
sin的平移與伸縮
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Fractal Geometry
Differential Equation
Circle
Complex Numbers
Histogram