# Tuple Definition

to͝opəl, tŭpəl

tuples

noun

A generalization of ordered pairs, such as (-3, 4), and ordered triples, such as (0, -3, 5), in any dimension. An

*n*-tuple is an ordered list of*n*numbers and can represent a point in*n*-dimensional space.American Heritage

A tuple is not merely a totally-ordered set because the same element can appear more than once in a tuple: for example, qualifies as a 3-tuple whereas it would not qualify as a totally-ordered set (of cardinality 3), because the set would be where and so that ; i.e., it would actually be a one-element set, not even just two-element.

If commutativity were added to a

**tuple**, it would turn into a multiset or "bag". For example, words (of some alphabetic language) can be considered to be**tuples**of letters. If the ordering requirement on those letters were lifted, then the word would become a multiset of letters equivalent to those of its anagrams.Wiktionary

(computing) A single row in a relational database.

Wiktionary

(computing) In some programming languages, a data type which is similar but distinct from the list data type, whose instances are characterized by having a rather fixed arity, and the elements of which instances can differ from each other by data type. (*Note*: this definition may overlap with the previous one.)

Both Python and Haskell have a

**tuple**data type as well as a list data type.Unlike lists,

**tuples**are not formed by consing.Wiktionary

suffix

(mathematics) A tuple containing the specified number of terms.

A 20-tuple.

Wiktionary

## Other Word Forms of Tuple

### Noun

Singular:

tuple
Plural:

tuples## Find Similar Words

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