ass="n">node</span><span class="p">,</span><span class="n">elem</span><span class="p">]</span> <span class="p">=</span> <span class="n">squaremesh</span><span class="p">([</span><span class="mi">0</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">1</span><span class="p">],</span> <span class="mf">0.5</span><span class="p">);</span>
<span class="n">bdFlag</span> <span class="p">=</span> <span class="n">setboundary</span><span class="p">(</span><span class="n">node</span><span class=