<h3>General</h3>
<ol>
+ <li> <p>New: The step-20 tutorial program was added. It shows how to use
+ Raviart-Thomas elements to solve a mixed formulation of the Laplace
+ equation. It also demonstrates the use of block matrices and vectors,
+ and how they can be used to define more complex solvers and
+ preconditioners working on the Schur complement.
+ <br>
+ (WB 2006/02/12)
+ </p>
+
<li> <p>
Updated: The <code>deal.II/contrib/boost</code> library has
been updated to boost version 1.33.1.
<a href="changes.html">here.</a></p>
<dl>
+ <dt>
+ <strong>2006/2/12: step-20 is finished</strong>
+ </dt>
+ <dd>
+ The new step-20 tutorial program shows how to use Raviart-Thomas
+ elements to solve a mixed formulation of the Laplace equation. It
+ also demonstrates the use of block matrices and vectors, and how they
+ can be used to define more complex solvers and preconditioners
+ working on the Schur complement.
+ </dd>
+
<dt>
<strong>2006/1/3-5: First User Workshop</strong>
</dt>
<a href="step-16.html" target="body">Step 16</a><br />
<a href="step-17.html" target="body">Step 17</a><br />
<a href="step-18.html" target="body">Step 18</a><br />
- <a href="step-19.html" target="body">Step 19</a>
+ <a href="step-19.html" target="body">Step 19</a><br />
+ <a href="step-19.html" target="body">Step 20</a>
</p>
<hr>
<a name="Intro"></a>
<h1>Introduction</h1>
+
+
+<p>
+[A higher quality version of the introduction is available as a PDF
+file by <a href="step-20.data/intro.pdf">clicking here</a>]
+</p>
+
+
+
<P>
This program is devoted to two aspects: the use of mixed finite elements - in
particular Raviart-Thomas elements - and using block matrices to define
<dd><strong>What's new:</strong> Input parameter file handling. Merging
output of a parallel program.
</dd>
+
+ <dt><a href="step-20.html">Step 20</a></dt>
+ <dd><strong>What's new:</strong> Mixed finite elements. Using block
+ matrices and block vectors to define more complicated solvers and
+ preconditioners working on the Schur complement.
+ </dd>
</dl>
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