latex: missing ^2

workshops/latex/latex.tex

@@ -496,8 +496,8 @@
         \node[draw=blue!20!lightgray,line width=2pt]{
           \begin{minipage}[t][14.5mm][c]{.4\textwidth}
             \null\hfill$\displaystyle%
-            \vec{x}=\mathrlap{\|\vec{x}\|^2}\hphantom{x_1^2+x_2^2}\hfill\mathllap{(1)}$\\[2pt]
-            \null\hfill$\displaystyle\hphantom{\vec{x}}=x_1^2+x_2^2{}\hfill\mathllap{(2)}$\\[-6pt]
+            \vec{x}^2=\mathrlap{\|\vec{x}\|^2}\hphantom{x_1^2+x_2^2}\hfill\mathllap{(1)}$\\[2pt]
+            \null\hfill$\displaystyle\hphantom{\vec{x}^2}=x_1^2+x_2^2{}\hfill\mathllap{(2)}$\\[-6pt]
           \end{minipage}
         };\\
         %\node[draw=blue!20!lightgray, line width=2pt]{