会犯错误
发表于 2025-3-23 09:54:04
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云状
发表于 2025-3-23 16:56:39
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符合国情
发表于 2025-3-23 20:10:46
Introduction,A . is a square divided into a square number of cells in which natural numbers, all different, are arranged in such a way that the same sum is found in each horizontal row, each vertical row, and each of the two main diagonals.
Free-Radical
发表于 2025-3-24 01:53:35
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水槽
发表于 2025-3-24 05:43:18
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Daily-Value
发表于 2025-3-24 06:56:31
Magic squares with non-consecutive numbers,The study of such cases is old: it is the subject of the last section of Ab¯u’l-Waf¯a’ B¯uzj¯an¯ı’s 10th-century treatise. He first considers the simple case in which all the numbers to be arranged form one arithmetical progression, then that in which they form . progressions (with . the order of the square) all with the same constant difference.
Harrowing
发表于 2025-3-24 13:38:32
https://doi.org/10.1007/978-3-030-17993-9diagonal placing; method of the cross; composite magic squares; method of Stifel; magic triangles; magic
DNR215
发表于 2025-3-24 18:27:34
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石墨
发表于 2025-3-24 21:46:14
Sources and Studies in the History of Mathematics and Physical Scienceshttp://image.papertrans.cn/m/image/621153.jpg
公理
发表于 2025-3-25 02:07:37
6楼