$\left\{<2\&comma;\mathrm{-1}\&comma;3\&comma;0\&gt;\&comma;<\mathrm{-2}\&comma;1\&comma;2\&comma;1\&gt;\&comma;<1\&comma;\mathrm{-3}\&comma;\mathrm{-3}\&comma;\mathrm{-4}\&gt;\&comma;<3\&comma;1\&comma;\mathrm{-1}\&comma;2\&gt;\&comma;<2\&comma;\mathrm{-1}\&comma;8\&comma;1\&gt;\right\}$

$\left\{\left[\begin{array}{r}-2\\ 1\\ 2\\ 1\end{array}\right]\&comma;\left[\begin{array}{r}1\\ -3\\ -3\\ -4\end{array}\right]\&comma;\left[\begin{array}{r}2\\ -1\\ 3\\ 0\end{array}\right]\&comma;\left[\begin{array}{r}2\\ -1\\ 8\\ 1\end{array}\right]\&comma;\left[\begin{array}{r}3\\ 1\\ -1\\ 2\end{array}\right]\right\}$

$\mathrm{LinearAlgebra}\left[\mathrm{Basis}\right]\left(\right)$

$\left\{\left[\begin{array}{r}-2\\ 1\\ 2\\ 1\end{array}\right]\&comma;\left[\begin{array}{r}1\\ -3\\ -3\\ -4\end{array}\right]\&comma;\left[\begin{array}{r}2\\ -1\\ 3\\ 0\end{array}\right]\right\}$