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the definition of ellipse
Author:
丁明智
GeoGebra
New Resources
撒针估算面积实验
第八周作业3
三角函数 的副本
第八周作业
中华人民共和国国旗
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九點圓 (9-Point Circle)
Mean of a Large Set of Data 大量數據的平均數
黎曼和
與三半圓相切的圓
畫圓周範例檔
Discover Topics
Cube
Quadratic Functions
Isosceles Triangles
Trigonometric Functions
Ellipse