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橢圓軌跡
Author:
賴詩唐
GeoGebra
New Resources
圓的基本性質
撒针估算面积实验
祖冲之的期望：内棋与外棋
龙形曲线-分形龙
圓周公式的應用
Discover Resources
特製的門
GGB動畫
angle sum of triangle
基础知识
包含除法（1 ÷分數）的副本
Discover Topics
Curve Sketching
Stochastic Process or Random Process
Ratios
Addition
Polynomial Functions