lookup table

lookup table
A data structure created for the purpose of translating keys into values.

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  • Lookup table — 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 …   Wikipedia

  • Lookup table — Una lookup table (del inglés tabla de consulta ) es, en informática, una estructura de datos, normalmente un arreglo o un arreglo asociativo, que se usa para substituir una rutina de computación con una simple indexación de los arreglos. Son muy… …   Wikipedia Español

  • Color Lookup Table — In der Computergrafik bezeichnet man mit indizierten Farben eine Methode zur Speicherung einer Rastergrafik. Bei indizierten Farben enthält die Datenstruktur jedes Pixels nicht direkt die einzelnen Farbwerte, sondern nur einen Index auf einen… …   Deutsch Wikipedia

  • Shift register lookup table — A shift register lookup table, also shift register LUT or SRL, refers to a component in digital circuitry. It is essentially a shift register of variable length. In addition to a single bit input and a clock, it also has some number of address… …   Wikipedia

  • lookup — look up n. (Computers) an operation that determines whether one or more of a set of items has a specified property; as, they wrote a program to do a table lookup. Syn: search. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • Lookup — In computing, lookup usually refers to searching a data structure for an item that satisfies some specified property . For example, variable lookup performed by a (scripting) language interpreter, virtual machine or other similar engine usually… …   Wikipedia

  • lookup — noun an operation that determines whether one or more of a set of items has a specified property (Freq. 8) they wrote a program to do a table lookup • Syn: ↑search • Hypernyms: ↑operation …   Useful english dictionary

  • table lookup —    Searching for data in a table; commonly used in data entry validation and any operation that must match an item of data with a known set of values …   IT glossary of terms, acronyms and abbreviations

  • Control table — This simple control table directs program flow according to the value of the single input variable. Each table entry holds a possible input value to be tested for equality (implied) and a relevant subroutine to perform in the action column. The… …   Wikipedia

  • Colour Look-Up Table — In der Computergrafik bezeichnet man mit indizierten Farben eine Methode zur Speicherung einer Rastergrafik. Bei indizierten Farben enthält die Datenstruktur jedes Pixels nicht direkt die einzelnen Farbwerte, sondern nur einen Index auf einen… …   Deutsch Wikipedia

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