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積分
Author:
chen mingchuan
GeoGebra
New Resources
直線的斜率：水平變化 & 鉛垂變化
龙形曲线-分形龙
常见四边形是否是双心四边形
平行線的判定
盈利與虧蝕
Discover Resources
雙曲線
tan graph 變換
正方形推垛
同心圓
拼出三角形的副本
Discover Topics
Circumcircle or Circumscribed Circle
Conic Sections
Geometric Transformations
Sine
Arithmetic