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三角函數圖形
Author:
刘护灵
GeoGebra
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直線的斜率：水平變化 & 鉛垂變化
折扣
斐波那契螺旋弧线（表格法-可动态调节）
撒针估算面积实验
第八周作业1
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i love you
Circumcentre
勝者即正義
test1
一位数加减法运算自我测评
Discover Topics
Integral Calculus
Optimization Problems
Equilateral Triangles
Square
Complex Numbers