… For n ≧9, the exact value of i n is not known, but approximately, i = 1. When two Latin squares of degree n are stacked together to obtain all n 2 combinations of symbols, the two squares are said to be orthogonal, and the resulting square is called an Euler square or Greco-Latin square. Figure 2 shows examples of cubic and quartic Euler squares. … *Some of the terminology explanations that mention "Euler square" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…n≧9のとき,inの正確な値は知られていないが,近似的には,となる。n次のラテン方陣を2個重ねてn2通りのすべての記号の組合せが得られるとき,この2個の方陣は直交するといい,できた方陣をオイラー方陣またはグレコ・ラテン方格という。図2は三次と四次のオイラー方陣の例である。… ※「オイラー方陣」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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