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虹が見えるのはなぜ?
Author:
yoshiyuki ishitsuka
GeoGebra
New Resources
standingwave-reflection
sine-wave
目で見る立方体の2等分
直線の軌跡
カージオイド
Discover Resources
再生、停止、反復ボタン
行列の意味
1-3
ParaBora
Theo Jansen テオヤンセン
Discover Topics
Vectors
Angles
Optimization Problems
Distributions
Confidence Interval