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圓的切線方程
正方形雪花图案
百分數及其應用
龙形曲线-分形龙2
盈利與虧蝕
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國中數學
包絡橢圓
Copy of 固定面積的圖形的周界變化
任務2的副本
Reuleaux triangle 掃地機器人v1.0
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Subtraction
Natural Numbers
Random Experiments
Combinatorics
Linear Regression