cell_render border-box-sizing rendered_html">
<h1 id="RT1-P1-Element-for-Poisson-Equation-in-2D">RT1-P1 Element for Poisson Equation in 2D<a class="anchor-link" href="#RT1-P1-Element-for-Poisson-Equation-in-2D">&#182;</a></h1>
</div>
</div>
</div>
<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
</div>
<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<p>This example is to show the rate of convergence of the RT1-P1 mixed finite el