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fem2d_poisson_ell.html
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<html>
<head>
<title>
FEM2D_POISSON_ELL - A 2D Poisson Problem in an L-shaped Region
</title>
</head>
<body bgcolor="#EEEEEE" link="#CC0000" alink="#FF3300" vlink="#000055">
<h1 align = "center">
FEM2D_POISSON_ELL <br> A 2D Poisson Problem in an L-shaped Region
</h1>
<hr>
<p>
<b>FEM2D_POISSON_ELL</b> is a FORTRAN library which
defines the geometry of an L-shaped region and other data
needed in order to execute the FEM2D_POISSON program.
</p>
<p>
This mesh, which uses 65 nodes, was created by starting with
a crude mesh, and having it refined by TRIANGULATION_REFINE
and renumbered by TRIANGULATION_RCM.
</p>
<h3 align = "center">
Licensing:
</h3>
<p>
The computer code and data files described and made available on this web page
are distributed under
<a href = "../../txt/gnu_lgpl.txt">the GNU LGPL license.</a>
</p>
<h3 align = "center">
Languages:
</h3>
<p>
<b>FEM2D_POISSON_ELL</b> is available in
<a href = "../../cpp_src/fem2d_poisson_ell/fem2d_poisson_ell.html">a C++ version</a> and
<a href = "../../f_src/fem2d_poisson_ell/fem2d_poisson_ell.html">a FORTRAN90 version</a> and
<a href = "../../m_src/fem2d_poisson_ell/fem2d_poisson_ell.html">a MATLAB version</a>.
</p>
<h3 align = "center">
Related Data and Programs:
</h3>
<p>
<a href = "../../cpp_src/fem2d_poisson/fem2d_poisson.html">
FEM2D_POISSON</a>,
a C++ program which
applies the finite element method to a 2D Poisson problem, with user input.
</p>
<h3 align = "center">
Source Code:
</h3>
<p>
<ul>
<li>
<a href = "ell.cpp">ell.cpp</a>,
the user-supplied routines to evaluate the right hand side,
linear coefficient, and boundary conditions;
</li>
<li>
<a href = "ell.sh">ell.sh</a>,
commands to compile the user routines, link them with
the partial program, and run the program;
</li>
<li>
<a href = "ell_output.txt">ell_output.txt</a>,
output from a run of the program;
</li>
<li>
<a href = "ell_nodes.txt">ell_nodes.txt</a>,
a text file containing a list, for each node, of its X and Y
coordinates;
</li>
<li>
<a href = "ell_nodes.png">ell_nodes.png</a>,
a PNG image of
the nodes;
</li>
<li>
<a href = "ell_elements.txt">ell_elements.txt</a>,
a text file containing a list, for each element, of the three
nodes that compose it;
</li>
<li>
<a href = "ell_elements.png">ell_elements.png</a>,
a PNG image of
the element mesh;
</li>
<li>
<a href = "ell_solution.txt">ell_solution.txt</a>,
a text file containing the solution U at each node (X,Y);
</li>
</ul>
</p>
<p>
You can go up one level to <a href = "../cpp_src.html">
the C++ source code page</a>.
</p>
<hr>
<i>
Last revised on 06 December 2010.
</i>
<!-- John Burkardt -->
</body>
</html>