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Pairing function : ウィキペディア英語版 | Pairing function In mathematics a pairing function is a process to uniquely encode two natural numbers into a single natural number. Any pairing function can be used in set theory to prove that integers and rational numbers have the same cardinality as natural numbers. In theoretical computer science they are used to encode a function defined on a vector of natural numbers ''f'':N''k'' → N into a new function ''g'':N → N. ==Definition== A pairing function is a primitive recursive bijection :
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Pairing function」の詳細全文を読む
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