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\title{Una Pequeña Cápsula Del \texttt{Frontend Layer} de \texttt{PGF} En \LaTeX}
\author{Nimrod Rodríguez}
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\begin{document}
\maketitle
\section*{La Suma De Riemann-Stieltjes} El excelente recurso del \texttt{frontend layer} de \texttt{PGF} para programar texto con gráficos.\\

\begin{tikzpicture}[scale =1,domain=-2.5:4, axes/.style= impotant line/.style={very thick},information text/.style={rounded corners, fill=blue,inner sep=2ex}]

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La figura muestra una ilustración de la suma de Riemann-Stieltjes, para el "área bajo la curva" de la función impar cúbica, utilizando el entorno resumido de \texttt{\textbackslash begin \{axis\}} y \texttt{\textbackslash end \{axis\}}, el cual facilita el manejo coordenado al utilizar \texttt {\textbackslash draw} (para agregar etiquetas), y \texttt {\textbackslash fill} (para estilizar el gráfico).
\end{minipage}};
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\end{document}