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分形几何欣赏初步：树型图
Author:
王俊辉
按逆时针方向，点选直角三角形直角边两点，构建新的图形。
GeoGebra
New Resources
美國國旗 (Codex 版)
Nested spiral octagon
Earth with coastline
國旗 (作圖步驟直接餵給 Claude)
世界平面地圖 (Codex╱2026.10.07)
Discover Resources
Locus of mid-point of a variable chord of a circle.
繪製平行四邊形
q5-11
梯形的面積
矩形等距曲線
Discover Topics
Arithmetic Operations
Ellipse
Logarithmic Functions
Bar Chart or Bar Graph
Cone