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橢圓之極偶 / polarity for ellipse
Author:
XIE Yuheng
GeoGebra
New Resources
找出對稱軸
判斷球體
兩位數除以一位數(二)
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
Discover Resources
填滿與旋轉
幾何作圖 根號 螺線圖
Temp file
string art
y=a(x-h)²+k的副本
Discover Topics
Mathematics
Solids or 3D Shapes
Cosine
Orthocenter
Logarithmic Functions