An n-tuple is a tuple of n elements, where n is a non-negative integer. There is only one 0-tuple, called the empty tuple. A 1-tuple and a 2-tuple are...

theory, a prime k-tuple is a finite collection of values representing a repeatable pattern of differences between prime numbers. For a k-tuple (a, b, …), the...

A tuple space is an implementation of the associative memory paradigm for parallel/distributed computing. It provides a repository of tuples that can be...

Tuple-versioning (also called point-in-time) is a mechanism used in a relational database management system to store past states of a relation. Normally...

operators. New tuples can supply explicit values or be derived from a query. Similarly, queries identify tuples for updating or deleting. Tuples by definition...

In a relational database, a row or "record" or "tuple", represents a single, implicitly structured data item in a table. A database table can be thought...

Tuple calculus is a calculus that was created and introduced by Edgar F. Codd as part of the relational model, in order to provide a declarative database-query...

database theory, a relation, as originally defined by E. F. Codd, is a set of tuples (d1,d2,...,dn), where each element dj is a member of Dj, a data domain....

mathematics, a circular shift is the operation of rearranging the entries in a tuple, either by moving the final entry to the first position, while shifting...

The expression of an instance of a product type will be a tuple, and is called a "tuple type" of expression. A product of types is a direct product...

represented by an n-dimensional array, where each element is an n-tuple. An ordered pair is a 2-tuple or couple. More generally still, one can define the Cartesian...

computer scientist Edgar F. Codd, where all data are represented in terms of tuples, grouped into relations. A database organized in terms of the relational...

existence of a tuple in the database, then the database could be in two different states with respect to that tuple—the first state contains the tuple, while...

Essential tuple normal form (ETNF) is a normal form used in database normalization. It lies strictly between fourth normal form (4NF) and fifth normal...

in Python). Tuples, written as (1, 2, 3), are immutable and thus can be used as the keys of dictionaries, provided that all of the tuple's elements are...

In relational database theory, a tuple-generating dependency (TGD) is a certain kind of constraint on a relational database. It is a subclass of the class...

and tuple type: The depth attribute defines the number of channels in the image, such as 1 for greyscale images and 3 for RGB images. The tuple type...

truth-valued function – is the set of tuples of values that, used as arguments, satisfy the predicate. Such a set of tuples is a relation. For example, the...

sees any evidence of an attack. A TCP connection is identified by a four-tuple of the source address, source port, destination address, and destination...

QUEL is a relational database query language, based on tuple relational calculus, with some similarities to SQL. It was created as a part of the Ingres...

Once the radius is fixed, the three coordinates (r, θ, φ), known as a 3-tuple, provide a coordinate system on a sphere, typically called the spherical...

some contexts, for tuples, which are finite sequences (of numbers or other objects) of a fixed length. Both geometric vectors and tuples can be added and...

significant, and they are sometimes identified by their position in an ordered tuple and sometimes by a letter, as in "the x-coordinate". The coordinates are...

This is an incomplete list of football clubs that have won four or more trophies in a single season. In a football season, clubs typically compete in many...

conjecture on prime k-tuples, and the first violation is expected to likely occur for very large values of x. For example, an admissible k-tuple (or prime constellation)...

In mathematics, especially order theory, a partial order on a set is an arrangement such that, for certain pairs of elements, one precedes the other. The...

a result, TUPLE [A, B, C] conforms to (may be assigned to) TUPLE [A, B], to TUPLE [A] and to TUPLE (without parameters), the topmost tuple type to which...

bringing many language additions like tuples in rest parameters and spread expressions, rest parameters with tuple types, generic rest parameters and so...

⁠ above. The fully general first Hardy–Littlewood conjecture on prime k-tuples (not given here) implies that the second Hardy–Littlewood conjecture is...

all tuples found in either relation (union), removing tuples from the first relation found in the second relation (difference), extending the tuples of...