In the following analysis we concern ourselves only with ^{n}. The elements of this space are the *n*-component vectors ** x** = [

The *line segment* between two points ** x** and

where α is a real number from the interval [0,1]. The equation above can be rewritten as ** z** = α

Let *u*_{1}, *u*_{2},…, *u*_{n}, *v* , where at least one of the *u*_{i} is nonzero. The set of all points ...

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