- Fuente TeX:
- \framebox{ \begin{tikzpicture} \draw[line width=0.3cm,color=red!30,cap=round,join=round] (-5,0)--(-3.12,0); \draw[line width=0.3cm,color=red!30,cap=round,join=round] (2.12,0)--(4,0); \draw[thick] (-5,0)--(4,0); \draw[shift={(-3,0)},color=darkgray,thin] (0pt,3pt) -- (0pt,-3pt) node[below] {$-3$}; \draw[shift={(2,0)},color=darkgray,thin] (0pt,3pt) -- (0pt,-3pt) node[below] {$2$}; \draw[shift={(-3,0)},color=black,very thick] node {$)$}; \draw[shift={(2,0)},color=black,very thick] node {$[$}; \end{tikzpicture} }