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黎曼和(Riemann Sum)
Author:
宋政蒲
Topic:
Upper and Lower Sum or Riemann Sum
GeoGebra
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拼砌四邊形
三位數除以一位數（二）
找出對稱軸
兩組對邊相等和有直角的四邊形
小数 的副本
Discover Resources
物體的體積
圓的軌跡
橢圓
分段函數
(3D) Tasks: Pyramid, Paper folding & Solid of revolution[20170615]
Discover Topics
Real Numbers
Arithmetic Mean
Ellipse
Perimeter
Coordinates