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椭圆的离心率

Author:军云

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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

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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

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Surface
Combinatorics
Median Value
Hypergeometric Distribution
Statistics

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