In computer science, a lookup table (LUT) is an array that replaces runtime computation of a mathematical function with a simpler array indexing operation...

In the film and graphics industries, 3D lookup tables (3D LUTs) are used for color grading and for mapping one color space to another. They are commonly...

Table-lookup synthesis (or Wavetable-lookup synthesis) (Roads 1996) is a class of sound synthesis methods using the waveform tables by table-lookup,...

standard table-based approach would require an inconveniently large 65536-entry table. As mentioned in § Generating the lookup table, CRC tables have the...

well-dimensioned hash table, the average time complexity for each lookup is independent of the number of elements stored in the table. Many hash table designs also...

others it is dynamic, typically implemented via a color lookup table (CLUT), a correspondence table in which selected colors from a certain color space's...

halftone image. The lookup table provides a continuous-tone value for a given pixel and its distribution. The corresponding lookup table is obtained before...

The bagua (Chinese: 八卦; pinyin: bāguà; lit. 'eight trigrams') is a set of symbols from China intended to illustrate the nature of reality as being composed...

The I Ching book consists of 64 hexagrams. A hexagram in this context is a figure composed of six stacked horizontal lines (爻 yáo), where each line is...

A CUSIP (/ˈkjuːsɪp/) is a nine-character numeric or alphanumeric code that uniquely identifies a North American financial security for the purposes of...

operations, like traversing iterable data structures (e.g. strings, lookup tables, control tables, linked lists, and tree structures). In particular, it is often...

implement a lookup table with constant worst-case access time. A perfect hash function can, as any hash function, be used to implement hash tables, with the...

though it is never used in queries or reports; it is done by creating a lookup table that contains the warehouse surrogate key and the originating key. This...

Sequential Access Method (ISAM), used for indexing data for fast retrieval Lookup table, a data structure used to store precomputed information Site map, or...

11.2 and GNU use a variant lookup table. Instead of 32-bit integers, 64-bit integers are used in the symbol lookup tables. The string "/SYM64/" instead...

common situation is an algorithm involving a lookup table: an implementation can include the entire table, which reduces computing time, but increases...

used to "drive" the logic of the program. A simple example might be a lookup table containing a range of possible input values and a function pointer to...

against their corresponding denoted sequence, using a lookup table. In the original paper, this lookup table is encoded and stored alongside the compressed text...

of one-item chains, the lookup is very fast, but the table is very big. Once chains get longer, the lookup slows, but the table size goes down. Simple...

return 1 [by the convention that 0! = 1] else if n is in lookup-table then return lookup-table-value-for-n else let x = factorial(n – 1) times n [recursively...

The Rijndael S-box is a substitution box (lookup table) used in the Rijndael cipher, on which the Advanced Encryption Standard (AES) cryptographic algorithm...

are allowed as values in the lookup table. In other languages, it is also possible to assign functions as lookup table values, gaining the same flexibility...

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...

via a lookup table. On-the-other-hand, a variable-width encoding is more complex to decode since it cannot be decoded via a single lookup table and must...

{\displaystyle c_{0}} and c 1 {\displaystyle c_{1}} , and a 4×4 two-bit lookup table. If c 0 > c 1 {\displaystyle c_{0}>c_{1}} (compare these colors by interpreting...

perpetual calendars require no calculation by the user, and are essentially lookup tables. A typical application is to calculate the day of the week on which...

multiplication. The system used a combination of mechanical cams as lookup tables and mechanical addition to sum pseudo-logarithmic indices to produce...

result is stored in a lookup table that is indexed by the values of those parameters; the next time the function is called, the table is consulted to determine...

arrays of addresses to functions as used in branch tables Indirect branch Lookup table an array of items to be matched, sometimes holding pre-calculated results...

Its implementation requires only a few instructions, plus a 256-byte lookup table containing a permutation of the values 0 through 255. This hash function...