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<span class="comment">% Boyd &amp; Vandenberghe, "Convex Optimization"</span>
<span class="comment">% Original version by Lieven Vandenberghe</span>
<span class="comment">% Updated for CVX by Almir Mutapcic - Jan 2006</span>
<span class="comment">% (a figure is generated)</span>
<span class="comment">%</span>
<span class="comment">% This is an exam