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Author:
Kojiro Shojima, Ph.D.
GeoGebra
New Resources
目で見る立方体の2等分
正17角形 作図 regular 17-gon
サイクロイド
対数螺旋
standingwave-reflection-free
Discover Resources
直線のベクトル方程式
seisimentai
単位円とtanのグラフ
一次変換流星群
ラッキー7に近づこう
Discover Topics
Symmetry
Conic Sections
Curve Sketching
Prism
Rotation