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Rank in the J programming language has several different meanings. In general, the concept of ''rank'' is used to treat an orthogonal array in terms of its sub-arrays. For instance, a two-dimensional array may be dealt with at rank 2 as the entire matrix, or at rank 1 to work with its implicit one-dimensional columns or rows, or at rank 0 to work at the level of its individual atoms. ; Noun rank : The rank of a noun is a non-negative integer. ; Verb rank : The rank of a verb is a list of three integers. ; The rank conjunction : The rank conjunction (") is used to derive a verb with a specific rank. == Noun rank == Nouns, in J, are arrays. The rank of a noun is the number of dimensions of that array. The derived verb #@$ determines the rank of a noun. 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「Rank (J programming language)」の詳細全文を読む スポンサード リンク
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