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1978年5月1日

1分鐘閱讀

數學遊戲，1978年5月

貝爾數：多功能的數字，可以計算集合的劃分、素數甚至押韻

作者：馬丁·加德納

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This article was originally published with the title “Mathematical Games” in 大眾科學 Magazine Vol. 238 No. 5 (May 1978), p. 24
doi:10.1038/scientificamerican0578-24

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