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Addition of Directed numbers
Author:
chisunch1
GeoGebra
New Resources
斐波那契螺旋弧线（表格法-可动态调节）
斐波那契螺旋弧线（表格法）
折扣
龙形曲线-分形龙2
平行線的判定
Discover Resources
趙庭浩的GGB電子書
優質教育基金計劃中期分享會 (26/6/2015)
幾何鋪磚 3, 4, 6 邊形
旋轉體：8y² = x²(1 - x²)
鏡頭控制
Discover Topics
Sine
Integers
Cylinder
Arithmetic Operations
Symmetry