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<h2 id="Assembling-the-matrix-equation">Assembling the matrix equation<a class="anchor-link" href="#Assembling-the-matrix-equation">&#182;</a></h2><p>We discuss several issues in the assembling.</p>
<h3 id="Mass-matrix">Mass matrix<a class="anchor-link" href="#Mass-matrix">&#182;</a></h3><p>The mass matrix can be computed by</p>

<pre><code>M = getmassmatvec(elem2edge,area,Dlambda,'RT1');</code></pre>

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