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Author:
葉天宏
GeoGebra
New Resources
異分母分數減法
兩組對邊相等和有直角的四邊形
直角坐標平面上的旋轉變換
兩位數除以一位數（一）
兩位數加法
Discover Resources
Function3
Percentage Change 百分改變
Arcs and Angles at Centre/ Circumference 弧、圓心角與圓周角
JavaScript to Create Slider
纏繞畫
Discover Topics
Vectors 2D (Two-Dimensional)
Frequency Distribution
Integral Calculus
Special Points
Linear Programming or Linear Optimization