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sin函數
Author:
陳品瑄
GeoGebra
f(x)=asin(tx-h)+k
a：振幅 t：伸縮 （h, k）：平移
New Resources
近似值：有效數字
畫出對稱圖形
Nested spiral octagon
美國國旗 (Codex 版)
兩組對邊相等和有直角的四邊形
Discover Resources
Sequence指令練習(包絡線：橢圓)
相机光圈模拟（3D）
面積
旋轉的副本
GeoGebra 检测教程
Discover Topics
Area
Histogram
Set Theory
Difference and Slope
Parabola