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旋轉矩陣
Author:
楊澤璿
GeoGebra
New Resources
活动三：应用性质
平行線的判定
异形操场
折扣
斐波那契螺旋弧线（表格法）
Discover Resources
面積相關問題(Area)
GGB風雲榜
轴对称
折三角形
存款模擬程式
Discover Topics
Vectors 3D (Three-Dimensional)
Sine
Distributions
Geometric Transformations
Fractions