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1972年12月1日

1分鐘閱讀

數學遊戲，1972年12月

關於雙孔環面的棘手問題，以及上個月密碼的解答

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. 227 No. 6 (December 1972), p. 102
doi:10.1038/scientificamerican1272-102

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