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@@ -12,6 +12,19 @@ control variables and with \dusa{ncst} constraints. The total number of system c
\vskip 0.08cm
+The {\tt GRAD:} module can be used to perform a {\sl Newtonian} search of SPH factors, as depicted in Fig.~\ref{fig:fig_fnewton}.
+
+\vskip 0.2cm
+
+\begin{figure}[h!]
+\begin{center}
+\includegraphics[scale=0.85]{Figures/flow_newton.eps}
+\caption{Newton SPH iterations.}\label{fig:fig_fnewton}
+\end{center}
+\end{figure}
+
+\vskip 0.08cm
+
The calling specifications are:
\begin{DataStructure}{Structure \moc{GRAD:}}