正弦波のスケーリング、ストレッチ、シフト
この記事では、標準的な正弦波 sin(x) の振幅、周波数、位相シフトを調整する方法を簡潔に解説する。具体的には、一般関数 s(x) = A・sin(w・x + θ) において、パラメータ A、w、θ を変更した際にグラフがどのように変化するかを説明する。
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