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海龟爬行
Author:
赵林
GeoGebra
New Resources
判斷球體
四邊形的特性
兩組對邊相等和有直角的四邊形
第八周作业
画直线等分三角形的面积
Discover Resources
圍棋名人賽
Mean of a Large Set of Data 大量數據的平均數
方格纸上画平行线和垂线
boxplots/histogram (Africa and Asia)
半圆面积的微积分动态演示.许兴华数学
Discover Topics
Rotation
Derivative
Fractal Geometry
Optimization Problems
Means