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動圓的圓心軌跡為橢圓
Author:
Ho-Kai Chen
Topic:
Ellipse
拉動大圓上的N點, 觀察圖形的變化!
GeoGebra
New Resources
Earth with coastline
Fibonacci Clock
國旗 (Claude 版)
近似值：有效數字
第八周作业
Discover Resources
Rectangle_05
test
Epicycloid
Tangent of circle
旋转的线段组成面
Discover Topics
Right Triangles
Dilation
Similarity Transformation or Similarity
Linear Programming or Linear Optimization
Square