-#LyX 1.6.2 created this file. For more info see http://www.lyx.org/
+#LyX 1.6.3svn created this file. For more info see http://www.lyx.org/
\lyxformat 345
\begin_document
\begin_header
\setboolean{eurosym}{true}}
{\setboolean{eurosym}{false}}
+% needed for math macros
+% check for package xargs
+\newboolean{xargs}
+\IfFileExists{xargs.sty}
+ {\usepackage{xargs}
+ \setboolean{xargs}{true}}
+ {\setboolean{xargs}{false}}
+
% needed in sec. 22.4
% check for package braket
\newboolean{braket}
.
\end_layout
+\begin_layout Standard
+\begin_inset ERT
+status collapsed
+
+\begin_layout Plain Layout
+
+
+\backslash
+ifxargs
+\end_layout
+
+\end_inset
+
+
+\begin_inset Note Note
+status collapsed
+
+\begin_layout Plain Layout
+La tabla siguiente sólo se mostrará en la salida si el paquete LaTeX
+\series bold
+xargs
+\series default
+ está instalado.
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
\begin_layout Standard
Una macro de ecuación se crea con el menú
\family sans
\end_inset
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status collapsed
+
+\begin_layout Plain Layout
+
+
+\backslash
+else
+\end_layout
+
+\end_inset
+
+
+\begin_inset Note Note
+status collapsed
+
+\begin_layout Plain Layout
+Lo que sigue se verá en la salida si el paquete LaTeX
+\series bold
+xargs
+\series default
+ no está instalado:
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+Debes instalar el paquete LaTeX
+\series bold
+xargs
+\series default
+ para ver en la salida el resto de esta subsección.
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status collapsed
+
+\begin_layout Plain Layout
+
+
+\backslash
+fi
+\end_layout
+
+\end_inset
+
+
\end_layout
\begin_layout Standard