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割圓
Author:
Wong Yiu Ming
GeoGebra
New Resources
龙形曲线-分形龙
讀磅
正方形雪花图案
圓周公式的應用
祖冲之的期望：内棋与外棋
Discover Resources
平行綫的斜率
proof 64 潘研
滑桿動態指令(動畫根本指令-用sequence)
circuit
巴拉拉能量
Discover Topics
Parametric Curves
Trigonometry
Means
Sphere
Power Functions