Ordered pairs versus coordinates ```Name: philip a rust Status: N/A Age: N/A Location: N/A Country: N/A Date: N/A ``` Question: What is the difference between an ordered pair and a coordinate? Replies: Given two sets, if you take an element from each and put them together in a pair of paretheses, you have an ordered pair. The set of all ordered pairs made in that way from sets A and B is called 'the Cartesian product of A and B' or AxB. Coordinates, on the other hand, are somethings that occur in a coordinate system. There's a lot of things to be said about coordinate systems, but basically it's about the discovery that all points in a plane can be described uniquely by means of ordered pairs of real numbers. In this context a coordinate is one of the real numbers in such an ordered pair. jan p anderson Click here to return to the Mathematics Archives

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