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橢圓動畫
Author:
chen mingchuan
GeoGebra
New Resources
三位數除以一位數（二）
球體建築師
兩組對邊相等的四邊形
算柱 (兩位數)
錐體建築師
Discover Resources
整數的減法
探索三角形外角定理
指數函數與多項式函數
十分逼近法
Mathematics and Optics (and their applications)
Discover Topics
Arithmetic Mean
Cosine
Solids or 3D Shapes
Complex Numbers
Differential Calculus