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斜椭圆
Author:
Xtecrhpht Tim
GeoGebra
New Resources
平行線的判定
中华人民共和国国旗
常见四边形是否是双心四边形
龙形曲线-分形龙2
斐波那契螺旋弧线(表格法)
Discover Resources
擴分和約分
費氏螺旋線
馬奔跑
科學記號
周界平移
Discover Topics
Limits
Planes
Geometric Transformations
Sequences and Series
Line Segment