+Si deseas ver, por ejemplo, cómo quedarían tus ecuaciones impresas por LaTeX,
+ activar la opción
+\family sans
+\lang english
+Display
+\begin_inset space ~
+\end_inset
+
+Graphics
+\family default
+\lang spanish
+ en el diálogo
+\family sans
+Herramientas\SpecialChar \menuseparator
+Preferencias\SpecialChar \menuseparator
+Apariencia\SpecialChar \menuseparator
+Visualización
+\family default
+.
+
+\lang english
+Then set
+\family sans
+Instant
+\begin_inset space ~
+\end_inset
+
+Preview
+\family default
+ to
+\family sans
+On
+\family default
+.
+
+\lang spanish
+ El
+\family sans
+Tamaño de la vista
+\family default
+ es el factor de multiplicación para el tamaño.
+\end_layout
+
+\begin_layout Standard
+Las vistas se generan cuando cargas un documento en Lyx y cuando terminas
+ de editar
+\lang english
+an inset
+\lang spanish
+.
+\end_layout
+
+\begin_layout Standard
+
+\lang english
+\begin_inset Note Greyedout
+status open
+
+\begin_layout Plain Layout
+
+\series bold
+\lang english
+Note:
+\series default
+ Previews of an already loaded document are not in every case immediately
+ generated by activating the option
+\family sans
+Display
+\begin_inset space ~
+\end_inset
+
+Graphics
+\family default
+.
+ Reopening the documents assures to get previews.
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Subsection
+
+\lang english
+Selected document parts
+\end_layout
+
+\begin_layout Standard
+
+\lang english
+Besides math there are other cases where you might like to see a preview,
+ fox example things that LyX cannot render like rotated parts or things
+ which are not yet supported by LyX.
+ To do this, insert a preview inset via the menu
+\family sans
+Insert\SpecialChar \menuseparator
+Preview
+\family default
+.
+ Insert or paste the stuff that you want to preview into this inset.
+ The preview will be generated when the cursor is outside the preview inset.
+ If you click on the preview, you can edit the previewed stuff.
+\end_layout
+
+\begin_layout Standard
+
+\lang english
+An example: To create rotated boxes, you use the LaTeX command
+\series bold
+
+\backslash
+rotatebox
+\series default
+ which is not yet supported by LyX.
+\begin_inset Foot
+status collapsed
+
+\begin_layout Plain Layout
+
+\series bold
+\lang english
+
+\backslash
+rotatebox
+\series default
+ is explained in section
+\emph on
+Rotated and Scaled Boxes
+\emph default
+ of the
+\emph on
+Embedded
+\begin_inset space ~
+\end_inset
+
+Objects
+\emph default
+ manual.
+\end_layout
+
+\end_inset
+
+ Instead of the TeX Code boxes you want to see in LyX the final rotated
+ boxes, for example to adjust the rotation angle to fit with the surrounding
+ text.
+ Therefore you create a preview inset and copy the text with the rotated
+ boxes into in.
+ Here is the result:
+\end_layout
+
+\begin_layout Standard
+\begin_inset Preview
+
+\begin_layout Standard
+
+\lang english
+This is a line
+\begin_inset ERT
+status collapsed
+
+\begin_layout Plain Layout
+
+
+\backslash
+rotatebox[origin=r]{-60}{
+\end_layout
+
+\end_inset
+
+
+\begin_inset Box Doublebox
+position "c"
+hor_pos "c"
+has_inner_box 0
+inner_pos "c"
+use_parbox 0
+use_makebox 0
+width "1in"
+special "width"
+height "1in"
+height_special "totalheight"
+status collapsed
+
+\begin_layout Plain Layout
+
+\lang english
+with rotated
+\end_layout
+
+\end_inset
+
+
+\begin_inset ERT
+status collapsed
+
+\begin_layout Plain Layout
+
+}
+\end_layout
+
+\end_inset
+
+ framed text
+\begin_inset ERT
+status collapsed
+
+\begin_layout Plain Layout
+
+
+\backslash
+rotatebox[origin=lb]{60}{
+\end_layout
+
+\end_inset
+
+
+\begin_inset Formula $\int A\,\mathrm{d}x=B$
+\end_inset
+
+
+\begin_inset ERT
+status collapsed
+
+\begin_layout Plain Layout
+
+}
+\end_layout
+
+\end_inset
+
+ and a formula.
+\end_layout
+