--- loncom/html/adm/help/tex/Authoring_Dynamic_Plot_Gnuplot.tex	2003/09/22 21:08:59	1.2
+++ loncom/html/adm/help/tex/Authoring_Dynamic_Plot_Gnuplot.tex	2004/10/13 14:47:10	1.4
@@ -44,8 +44,24 @@ of sample points to use.
 This is the value used for the \texttt{align} parameter in the \texttt{img} 
 tag which embeds the plot in the problem.
 
-\item \texttt{Width of plot when printed (mm)}  
-\item \texttt{Plot type:} ``Cartesian'' or ``Polar''.  
+\item \texttt{Width of plot when printed (mm)} The width in mm of the plot when
+it is printed.  The default is approximately one half of a U.S. letter size 
+page, 93 mm.
+
+\item \texttt{Font size to use in TeX output (pts)} The size in points of text
+on the graph when it is printed out.
+
+\item \texttt{Plot type} ``Cartesian'' or ``Polar''.  
+
+\item \texttt{margin width (pts)} The left, right, top, or bottom margin width
+measured in points.
+
+\item \texttt{Size of major tic marks} The size of the larger tic marks on the
+plot border or axes, measured in graph units.
+
+\item \texttt{Size of minor tic marks} The size of the smaller tic marks on the
+plot border or axes, measured in graph units.
+
 \end{itemize}
 
 The \textbf{gnuplot} tag allows the use of the the following tags: