TABLE LOOKUP Meaning and
Definition
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Table lookup refers to a technique used in computer programming and data processing, where a table or an array is created to store pre-calculated data values or mappings. This allows quick and efficient retrieval of information based on an input or key without the need for complex calculations or repetitive computations.
In the context of computer programming, the table lookup method involves building a lookup table that contains a set of pre-calculated results, formulas, or mappings. Each entry in the table typically consists of a key or index and its corresponding value. When a program needs to fetch a value, it simply searches the table for the specified key and retrieves the associated value. This helps minimize computational overhead by avoiding unnecessary calculations, as the desired result can be obtained directly.
Table lookup provides a significant advantage in terms of speed and efficiency, particularly when dealing with large datasets or complex calculations. This technique is commonly used in various applications, such as database systems, computer graphics, encryption algorithms, and network protocols. It is particularly beneficial in situations where real-time performance or frequent data retrieval is required.
Table lookup can also offer flexibility and simplicity in programming, as updates or modifications to the data can be easily managed by manipulating the table entries, rather than modifying the code itself. Additionally, it enables code reusability, as the same lookup table can be applied across multiple instances or functions within a program.
Common Misspellings for TABLE LOOKUP
- rable lookup
- fable lookup
- gable lookup
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- 6able lookup
- 5able lookup
- tzble lookup
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Etymology of TABLE LOOKUP
The word "table lookup" has its origins in the field of computer science.
The term "table" refers to a data structure used to store and organize information. In computer science, a table is often represented as a collection of rows and columns, similar to a table in a spreadsheet.
The word "lookup" means to search or find something in a given set of data. In the context of computer science, a lookup operation entails searching for a specific value in a table and retrieving the corresponding information associated with it.
Together, "table lookup" refers to the process of searching for a particular value or information in a table data structure. This term is commonly used in various computing applications, particularly in databases, where tables are commonly used to store and retrieve data efficiently.
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