4 
\label{FirstSteps} 
\label{FirstSteps} 
5 


6 
\begin{figure} 
\begin{figure} 
7 
\centerline{\includegraphics[width=\figwidth]{FirstStepDomain}} 
\centerline{\includegraphics[width=\figwidth]{figures/FirstStepDomain}} 
8 
\caption{Domain $\Omega=[0,1]^2$ with outer normal field $n$.} 
\caption{Domain $\Omega=[0,1]^2$ with outer normal field $n$.} 
9 
\label{fig:FirstSteps.1} 
\label{fig:FirstSteps.1} 
10 
\end{figure} 
\end{figure} 
117 


118 


119 
\begin{figure} 
\begin{figure} 
120 
\centerline{\includegraphics[width=\figwidth]{FirstStepMesh}} 
\centerline{\includegraphics[width=\figwidth]{figures/FirstStepMesh.eps}} 
121 
\caption{Mesh of $4 \time 4$ elements on a rectangular domain. Here 
\caption{Mesh of $4 \time 4$ elements on a rectangular domain. Here 
122 
each element is a quadrilateral and described by four nodes, namely 
each element is a quadrilateral and described by four nodes, namely 
123 
the corner points. The solution is interpolated by a bilinear 
the corner points. The solution is interpolated by a bilinear 
288 
\LINUX distributions. 
\LINUX distributions. 
289 


290 
\begin{figure} 
\begin{figure} 
291 
\centerline{\includegraphics[width=\figwidth]{FirstStepResult.eps}} 
\centerline{\includegraphics[width=\figwidth]{figures/FirstStepResult.eps}} 
292 
\caption{Visualization of the Poisson Equation Solution for $f=1$} 
\caption{Visualization of the Poisson Equation Solution for $f=1$} 
293 
\label{fig:FirstSteps.3} 
\label{fig:FirstSteps.3} 
294 
\end{figure} 
\end{figure} 