For the sake of concreteness, let us suppose that we start with a continuous ''n''-dimensional vector space like ''X'' = 〈''x''<sub>1</sub>, …, ''x''<sub>''n''</sub>〉 <math>\cong</math> '''R'''<sup>''n''</sup>. The coordinate | For the sake of concreteness, let us suppose that we start with a continuous ''n''-dimensional vector space like ''X'' = 〈''x''<sub>1</sub>, …, ''x''<sub>''n''</sub>〉 <math>\cong</math> '''R'''<sup>''n''</sup>. The coordinate |