Span (Vectors)

The span of Subspace generated by Vectors ${\bf v}_1$ and ${\bf v}_2 \in \Bbb{V}$ is

$$\mathop{\rm Span}({\bf v}_1,{\bf v}_2) \equiv \{r{\bf v}_1 + s{\bf v}_2: r, s \in \Bbb{R}\}.$$