lass="p">];</span>
<span class="n">edge</span> <span class="p">=</span> <span class="p">[</span><span class="mi">2</span> <span class="mi">3</span><span class="p">;</span> <span class="mi">1</span> <span class="mi">3</span><span class="p">;</span> <span class="mi">1</span> <span class="mi">2</span><span class="p">];</span>
<span class="n">figure</span><span class="p">;</span>
<span class="n">subplot</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span