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z=x^2-y^2
Author:
user16197
GeoGebra
New Resources
球体的体积推导（优化版）
錐體建築師
兩組對邊相等的四邊形
畫出對稱圖形
判斷球體
Discover Resources
「分點」平行四邊形
向量
纏繞
對數的平移效果
中位线问题
Discover Topics
Subtraction
Rotation
Line Segment
Vectors 2D (Two-Dimensional)
Histogram