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圆锥曲线的生成
Author:
孟宝兴
GeoGebra
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畫出對稱圖形
美國國旗 (Codex 版)
Earth with coastline
世界平面地圖 (Codex╱2026.10.07)
四邊形的特性
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Scientific Notation 科學記數法
Light reflected in hyperbola
尺規作圖2
摺正三角形
尺规作图得到黄金三角形和黄金矩形
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Statistical Characteristics
Means
Parametric Curves
Ratios
Quadrilaterals