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Author:嶋津恒彦

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目で見る立方体の2等分
standingwave
二次曲線と離心率
直線の軌跡
正１７角形　作図　regular 17-gon 2

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figure_HS_204_1
Pythagorasの証明
固有ベクトル
シムソン線の包絡線
正四面体の切断面

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Pie Chart or Circle Chart
Ellipse
Isosceles Triangles
Sphere
Normal Distribution

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