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平四3
Author:
数豆豆
GeoGebra
New Resources
龙形曲线-分形龙
盈利與虧蝕
斐波那契螺旋弧线(表格法)
异形操场
椭圆内切圆链
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三角形面積公式 1/2 bc sinA
偏導數、切平面、梯度
y=a(x-h)²+k
用交轨法求动点的轨迹方程图.许兴华数学
球體
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Inequalities
Median Line
Geometric Mean
Exponential Functions
Boxplot