…Euler proved that a unilinear circuit can be drawn only when there are two or no odd points. Figure 17-a is a problem found in W. Ahrens' Mathematical Games, Vol. 2 (1918), and although it looks quite complicated, if you confirm that only points A and B are odd points, you can easily obtain the solution shown in Figure 17-b. A topology puzzle similar to a unilinear circuit is the Hamiltonian circuit problem. … *Some of the terminology that mentions "Ahrens, W." is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…オイラーは奇数の点が2個か1個もない場合だけ一筆書きができることを証明した。図17‐aはアーレンスW.Ahrens著の《数学遊戯》第2巻(1918)にある問題で,かなり複雑そうに見えるけれども,A点とB点だけが奇数の点であることを確認すれば図17‐bのような解が簡単に得られる。一筆書きと似たトポロジーパズルにハミルトン閉路の問題がある。… ※「アーレンス,W.」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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