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椭圆的离心率
Author:
军云
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數加法
【案例】2013年安徽高考15题
第八周作业
畫出對稱圖形
Discover Resources
已知橢圓 x^2/a^2+y^2/b^2=1 (a>b>0)
Riemann Sums
旋轉動畫
圓錐曲線
任务1:一次、二次函数的绘画
Discover Topics
Surface
Combinatorics
Median Value
Hypergeometric Distribution
Statistics