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圓錐曲線的光學性質
Author:
陳隆期
GeoGebra
New Resources
錐體建築師
找出對稱軸
畫出對稱圖形
拼砌四邊形
【案例】圆柱体内放置一个大球六个小球
Discover Resources
百分數：買賣問題（Java 版）
常態分配
Number of solutions of two straight lines
我的第一个GGB绘本
约瑟夫问题
Discover Topics
Geometric Transformations
Parabola
Diagrams
Isosceles Triangles
Curve Sketching