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    Cartesian Product

    Definition

    The Cartesian product of two sets A and B (also called the product set, set direct product, or cross product) is defined to be the set of all points (a, b) where a element A and b element B. It is denoted A×B, and is called the Cartesian product since it originated in Descartes' formulation of analytic geometry. In the Cartesian view, points in the plane are specified by their vertical and horizontal coordinates, with points on a line being specified by just one coordinate. The main examples of direct products are Euclidean three-space (R×R×R, where R are the real numbers), and the plane (R×R). The graph product is sometimes called the Cartesian product (Vizing 1963, Clark and Suen 2000).

    Associated person

    René Descartes

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