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waaachen
Author:
陳兪宏
偷懶版本~~~
GeoGebra
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兩位數除以一位數(二)
斜率的值
空间中两直线的位置关系
祖冲之的期望:内棋与外棋
讀磅
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數學4其他圖
小学奥数
函数积分
四次函數
双动点求三角形最大面积演示
Discover Topics
Fractal Geometry
Curve Sketching
General Quadrilateral
Coordinates
Cuboid