Editing Cartesian coordinate system (section)

===Higher dimensions===
Since Cartesian coordinates are unique and non-ambiguous, the points of a Cartesian plane can be identified with pairs of [[real number]]s; that is, with the [[Cartesian product]] <math>\R^2 = \R\times\R</math>, where <math>\R</math> is the set of all real numbers. In the same way, the points in any [[Euclidean space]] of dimension ''n'' be identified with the [[tuple]]s (lists) of ''n'' real numbers; that is, with the Cartesian product <math>\R^n</math>.