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正十二面體
Author:
侯杰材
正十二面體
GeoGebra
New Resources
Earth with coastline
近似值：有效數字
世界平面地圖 (Codex╱2026.10.07)
國旗 (作圖步驟直接餵給 Claude)
美國國旗 (Codex, 2026.10.06)
Discover Resources
圖例
正弦與正切值的大小關係
ghseh 二次函數左右x值差
Space-filling curve
除法Q4
Discover Topics
Geometric Mean
LCM and GCD
Distributions
Rational Numbers
Correlation