For \(1\leq i\leq n\), the \(i\)-th basic coordinate vector of \(\RNrSpc{n}\) is

\[\Vect{e}_i\ \DefEq\ (\overset{i}{ \underset{\leftarrow\qquad n\qquad \rightarrow}{0,\dots ,0,1,0,\dots ,0} })\]