Definition of cartesian product Cartesian product

We found 3 definitions of cartesian product from 2 different sources.

What does cartesian product mean?

Noun
cartesian product - the set of elements common to two or more sets; "the set of red hats is the intersection of the set of hats and the set of red things"
		intersection, product, Cartesian product

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cartesian product (Noun)
The set of all possible pairs of elements whose components are members of two sets. Notation: X \times Y = x\in X \land y\in Y\.
cartesian product (Noun)
All possible combinations of rows between all of the tables listed.