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Author:
Kojiro Shojima, Ph.D.
GeoGebra
New Resources
standingwave
standingwave-reflection
サイクロイド
平均変化率
正17角形 作図 regular 17-gon
Discover Resources
Ex_58
錯視2
ex20170209
追跡線と疾走線
Secret Star
Discover Topics
Conditional Probability
Isosceles Triangles
Perimeter
Hyperbola
Tangent Function