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天動説　Ptolemaic theory

Author:holon

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小テスト
standingwave-plus
サイクロイド
standingwave-reflection
sine-wave

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一般角
縦波
Three movements of the Tokyo 2020 Olympic emblem
三平方の定理
楕円におけるSalmonの定理

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Straight Lines
Similar Triangles
Reflection
Trapezium
Polygons

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