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二次函数(y=ax²+bx+c)
Author:
杨秀芬
GeoGebra
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斐波那契螺旋弧线(表格法)
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镂空正方体案例对比
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龍騰4_1-1課例5
空間向量
堆朵
Copy of 劉徽的「割圓術」
定积分