Jisho

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Noun
1. look-up table; LUTComputing
Wikipedia definition
2. Lookup tableIn computer science, a lookup table is a data structure, usually an array or associative array, often used to replace a runtime computation with a simpler array indexing operation. The savings in terms of processing time can be significant, since retrieving a value from memory is often faster than undergoing an 'expensive' computation or input/output operation.
Read “Lookup table” on English Wikipedia
Read “ルックアップテーブル” on Japanese Wikipedia
Read “Lookup table” on DBpedia
Other forms
ルックアップ・テーブル

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