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Openai/680d4429-3bec-800d-a287-a56ca7e245b1
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===== - フィボナッチ数列じゃなくても、直前の2つを足すルールなら黄金比に収束する ===== * ルーカス数列もその一種 * 最初の数字は関係ない。大事なのは「成長パターン（ルール）」 * もっと一般化すると「線形漸化式」という数学の世界に入る もし興味があったら、さらに * なぜこのルールで黄金比に収束するのか？（簡単な数学証明できる） * フィボナッチ数列や黄金比が登場する超意外な例（金融マーケット、DNAの構造、台風の渦とか） みたいな話もできるよ！ どこまで深掘りしたい？ （このまま数学オタクモードでいこうか？笑）
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