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 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157 % % $Id: intro.tex,v 1.5 2001/10/28 15:22:11 prudhomm Exp$ % % SUMMARY: % USAGE: % % AUTHOR: Christophe Prud'homme % ORG: MIT % E-MAIL: prudhomm@mit.edu % % ORIG-DATE: 8-Feb-97 at 16:51:26 % LAST-MOD: 28-Oct-01 at 10:19:25 by Christophe Prud'homme % % DESCRIPTION: % This is part of the FreeFEM Documentation Manual % Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 % Christophe Prud'homme and Olivier Pironneau % See the file fdl.tex for copying conditions. % DESCRIP-END. \chapter{Introduction} \freefem is an implementation of the \textbf{Gfem} language dedicated to the finite element method. It provides you a way to solve Partial Differential Equations (PDE) simply. Although you can solve quite complicated problems can be solved also. \par In this manual we are going to describe the \freefem package: \begin{itemize} \item Compilation step \item How to use the language \item A quick presentation of how it is done %\item A library for mesh adaptation\index{mesh adaptation}. You are not obliged to use it or to % compile it \end{itemize} \par \section{Conventions} \label{sec:conventions} \begin{itemize} \item A \textbf{triangulation}\index{triangulation}, T, is a set of triangles covering a domain refered later as $\Omega$ \item Each \textbf{vertex}\index{vertex} has a number \textbf{iv}, a region reference number \textbf{region}, and a boundary reference number \textbf{ib} which is zero for internal points. \item An \textbf{array-function}\index{array-function} is an array of values on the vertices of T. It represents a piecewise linear continuous (or discontinuous if \verb+precise+ is used) function on $\Omega$. \item In an integrated environment \textbf{Gfem} has the notion of Project: files shown on the desktop as documents with an icon like a triangulated rectangle (on the Macintosh). \item A \textbf{project}\index{project} contains a program, the last triangulation created and one array function, namely the last function displayed. \end{itemize} \section{Software and Documentation} \label{sec:soft} \freefem is available on Internet. Check the following http\index{http} site: \begin{center} \htmladdnormallink{kfem.sourceforge.net}{http://kfem.sourceforge.net} \end{center} The tarball uses the following naming convetion: \texttt{freefem-x.x.x.tar.gz} \par Others documentations are available on the \freefem Web site. These might provide further enlightment on the software. \paragraph{AUTHORS} The authors are, in alphabetical order: \begin{itemize} \item Dominique Bernardi \texttt{} \item Frederic Hecht \htmladdnormallink{\texttt{}}{mailto:Frederic.Hecht@inria.fr} \item Castro J. Manollo \htmladdnormallink{\texttt{}}{mailto:castro@gamba.cie.uma.es} \item Pascal Parole \htmladdnormallink{\texttt{}}{mailto:pascal@area-mundi.fr} \item Olivier Pironneau \htmladdnormallink{\texttt{}}{mailto:pironneau@ann.jussieu.fr} \item Christophe Prud'homme \htmladdnormallink{\texttt{}}{mailto:prudhomm@users.sourceforge.net} \end{itemize} \par \noindent If you are interested in \freefem have a look at the web site \htmladdnormallink{kfem.sourceforge.net}{http://kfem.sourceforge.net}. You can subscribe to various mailing lists and get the latest stuff from the \freefem world. %\section{The FreeFEM World} %\label{sec:freefem-world} %\index{freefem-announce@asci.fr} %\index{freefem-users@asci.fr} %\begin{itemize} %\item I already told you about the WWW Home Page. %\item There are two \textbf{FreeFEM} mailing lists\index{mailing lists} %\begin{enumerate} %\item \texttt{freefem-announce@asci.fr}: \textbf{moderated} list used to announce new % versions of \textbf{FreeFEM} or contributions to it %\item \texttt{freefem-users@asci.fr}: \textbf{unmoderated} list for the % users. %\end{enumerate} %If you want to subscribe to these mailing lists send a mail to %\begin{enumerate} %\item \texttt{freefem-announce-request@asci.fr} %\item \texttt{freefem-users-request@asci.fr} %\end{enumerate} %Put the word \texttt{subscribe} in the 'Subject' field or in the body of the %text. You will get a mail with a nice message of welcome.\\ %If you write to unsubcribe, just replace \texttt{subscribe} by \texttt{unsubscribe} in %you mail submission. %\end{itemize} %\begin{latexonly} % You can fill a Html Form under the html version of this document if you want % to subscribe to the mailing lists. %\end{latexonly} %\begin{rawhtml} %
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