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1.1     ! matthew     1: \label{Authoring_Dynamic_Plot_Gnuplot}
        !             2: 
        !             3: The \textbf{gnuplot} tag allows an author to design a plot which is created
        !             4: when it is viewed.  This is intended for use in homework problems
        !             5: where each student needs to see a distinct plot.  It can be used in
        !             6: conjunction with a \textbf{script} tag to generate random plots.
        !             7: 
        !             8: The following parameters may be set:
        !             9: 
        !            10: \begin{itemize}
        !            11: \item \texttt{brief description of the plot} 
        !            12: This text is used as the \texttt{alt} parameter of the \texttt{img} tag 
        !            13: used to embed the plot.
        !            14: 
        !            15: \item \texttt{background color of image (xffffff)}
        !            16: See the section on color selection \ref{Authoring_Dynamic_Plot_Color_Selection}
        !            17: for help on specifying colors.
        !            18: 
        !            19: \item \texttt{foreground color of image (x000000)} 
        !            20: 
        !            21: See the section on color selection \ref{Authoring_Dynamic_Plot_Color_Selection}
        !            22: for help on specifying colors.
        !            23: 
        !            24: \item \texttt{height of image (pixels)}
        !            25: 
        !            26: \item \texttt{width of image (pixels)}
        !            27: 
        !            28: \item \texttt{Size of font to use} ``small'', ``medium'', or ``large''.  
        !            29: The font used for any text on the plot is set with this tag.
        !            30: 
        !            31: \item \texttt{Transparent image} ``Yes'' or ``No''.  
        !            32: If the image is transparent the background color will be ignored.
        !            33: 
        !            34: \item \texttt{Display grid} ``Yes'' or ``No''.  
        !            35: 
        !            36: \item \texttt{Number of samples for non-data plots}  If a \textbf{function} 
        !            37: \ref{Authoring_Dynamic_Plot_Curve_Function} tag is used to specify the
        !            38: \textbf{curve} \ref{Authoring_Dynamic_Plot_Curve}, this indicates the number
        !            39: of sample points to use.
        !            40: 
        !            41: \item \texttt{Draw border around plot} ``Yes'' or ``No''
        !            42: 
        !            43: \item \texttt{alignment for image in html} ``Left'', ``Center'', or ``Right''.
        !            44: This is the value used for the \texttt{align} parameter in the \texttt{img} 
        !            45: tag which embeds the plot in the problem.
        !            46: 
        !            47: \item \texttt{Width of plot when printed (mm)}  
        !            48: \item \texttt{Plot type:} ``Cartesian'' or ``Polar''.  
        !            49: \end{itemize}
        !            50: 
        !            51: The \textbf{gnuplot} tag allows the use of the the following tags:
        !            52: 
        !            53: \begin{itemize}
        !            54: \item \textbf{curve} \ref{Authoring_Dynamic_Plot_Curve}
        !            55: \item \textbf{key}   \ref{Authoring_Dynamic_Plot_Key}
        !            56: \item \textbf{label} \ref{Authoring_Dynamic_Plot_Label}
        !            57: \item \textbf{title} \ref{Authoring_Dynamic_Plot_Linestyle}
        !            58: \item \textbf{axes}  \ref{Authoring_Dynamic_Plot_Axes}
        !            59: \item \textbf{tics}  \ref{Authoring_Dynamic_Plot_Tics}
        !            60: \item \textbf{title}, \textbf{xlabel}, and \textbf{ylabel} 
        !            61:       \ref{Authoring_Dynamic_Plot_Title_X_Y_Label}
        !            62: \end{itemize}
        !            63: