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no13
Author:
iclntnu
GeoGebra
New Resources
斐波那契螺旋弧线（表格法-可动态调节）
折扣
撒针估算面积实验
直線的斜率：水平變化 & 鉛垂變化
双心四边形
Discover Resources
數列與級數
P53_3c
勒洛三角形(方型鑽子模型)
hello
百度
Discover Topics
Linear Programming or Linear Optimization
Mathematics
Means
Plane Figures or Shapes
Integers