      (3,0); \draw[-&gt;,&gt;=stealth,blue] (0,0) -- (1,2);
        \draw[-&gt;,&gt;=stealth,blue] [shift={(3,0)}](0,0) --
        (1,2); \draw[-&gt;,&gt;=stealth] (0:1cm) node[above
        right=1pt,fill=white]{\normalsize $+$} arc (0:64:1cm) ;
        \draw[&lt;-,&gt;=stealth] (0:2cm) node[above
        right=1pt,fill=white]{\normalsize $-$} arc (0:64:2cm) ;
        \node[fill=white] at (2.5, 1.5) {Area $=6$};
      </div>\vspace{2pt} $

      <div class="vmatrix">
        {3}&amp;{1}\\{0}&amp;{2}
      