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雙曲線之極偶 / polarity for hyperbola
Author:
XIE Yuheng
GeoGebra
New Resources
畫出對稱圖形
異分母分數減法
兩位數除以一位數（一）
直角坐標平面上的旋轉變換
兩位數除以一位數（二）
Discover Resources
時間參數跳躍函數與向量搭配
Form 2 (中二）
分數約分
時距計算機 (時針改變)
自製工具：CurveFit, Bezier
Discover Topics
Linear Functions
LCM and GCD
Bar Chart or Bar Graph
Geometric Mean
Sequences and Series