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第四冊4-2橢圓的伸縮
Author:
chenzenyi
GeoGebra
New Resources
正方形雪花图案
第八周作业2
平行線的判定
斐波那契螺旋弧线（表格法-可动态调节）
双心四边形
Discover Resources
拼出三角形
七巧板
man1
y=Sin(x)伸縮平移
正多边形内接迭代的副本
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Matrices
Power Functions
Arithmetic
Planes
Area