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２つの正三角形

Author:Tsuyoshi Yamamoto

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二次曲線と離心率
standingwave-plus
斜めドップラー
フーリエ級数展開
対数螺旋

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２次関数の決定２
点の存在範囲（0≤c≤2）
z=x^3+y^3+xy
動的数学ソフトウェア GeoGebra 入門
回転体2

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Interest Calculation
Angles
Surface
Arithmetic
Piecewise Functions

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