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Cartesian product facts for kids

Kids Encyclopedia Facts

In mathematics, sets can be used to make new sets. Given two sets A and B, the Cartesian product of A with B is written as A × B, and is the set of all ordered pairs whose first element is a member of A, and whose second element is a member of B.

For example, let A = {1, 2, 3} and B = {a, b}. Then:

A \times B = \{(1, a), (1, b), (2, a), (2, b), (3, a), (3, b)\}

The set of a Cartesian product can be visualized as a two-dimensional table, with its entry being its elements.

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Kids robot.svg In Spanish: Producto cartesiano para niños

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