tangles such</span>
<span class="comment">% that they do not overlap and that they minimize the area of the</span>
<span class="comment">% bounding box. This code solves the specific instances given</span>
<span class="comment">% in the GP tutorial. We have four rectangles with variable</span>
<span class="comment">% width w_i and height h_i. They need to satisfy area and aspect</span>
<span class="comment">% ration constraints. The GP is formulated as:</span>
<span class="comment">%</span>
<span class="com