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Author:
Chan Yip-Cheung
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第八周作业
近似值：有效數字
算柱 (兩位數)
長方體平面投影 (Codex版)
判斷球體
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Locus 軌跡(3T)
测试 = =
ghseh 二次函數動畫左右平移
Multiplication of Polynomials (多項式的乘法 2)
劉徽的「割圓術」的副本
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Geometric Mean
Subtraction
Quadratic Equations
Real Numbers
Symmetry