対訳 ルックアップ テーブル
出典:Wikipedia
出典:『Wikipedia』 (2011/06/22 19:27 UTC 版)
In 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. The tables may be precalculated and stored in static program storage or calculated (or "pre-fetched") as part of a programs initialization phase (memoization). Lookup tables are also used extensively to validate input values by matching against a list of valid (or invalid) items in an array and, in some programming languages, may include pointer functions (or offsets to labels) to process the matching input.
the aforementioned chart
take the top of the table
the table below
underneath the table
Please see the table below.
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