heteromecic - Weblio 英和・和英辞典 (original) (raw)

単語を追加

× この辞書を今後表示しない

※辞書の非表示は、設定画面から変更可能

heteromecic

出典:『Wiktionary』 (2026/03/14 20:36 UTC 版)

形容詞

heteromecic (not comparable)

1. (mathematics) Being the product of two consecutive integers.
   Synonym: pronic
   • 1952 [c. 100], Nicomachus of Gerasa, translated by Martin Luther D’Ooge, edited by Robert Maynard Hutchins, Mortimer J. Adler, and Wallace Brockway, Introduction to Arithmetic II (Great Books Of The Western World; 11), William Benton (Encyclopædia Britannica, Inc.), page 838:
     [1] Again, then, to take a fresh start, a number is called heteromecic if its representation, when graphically described in a plane, is quadrilateral and quadrangular, to be sure, but the sides are not equal to one another, nor is the length equal to the breadth, but they differ by 1. Examples are 2, 6, 12, 20, 30, 42, and so on, for if one represents them graphically he will always construct them thus: 1 times 2 equals 2, 2 times 3 equals 6, 3 times 4 equals 12, and the succeeding ones similarly, 4 times 5, 5 times 6, 6 times 7, 7 times 8, and thus indefinitely, provided only that one side is greater than the other by 1 and by no other number.

参考

• oblong number
• rectangular number

heteromecicのページの著作権
英和・和英辞典 情報提供元は参加元一覧 にて確認できます。

| ピン留めアイコンをクリックすると単語とその意味を画面の右側に残しておくことができます。 | | | ------------------------------------------- | |