ve();</pre><p><html><a  href="#top_of_page">Back to Top</a> </html></p>
         <h2>Pre-programmed applications<a name="9"></a></h2>
         <p>PENlab distribution contains several pre-programmed applications for some standard optimization problems. For these problems,
            the user does not have to create the <tt>penm</tt> object, nor the call back functions. Pre-programmed applications can be found in directory <tt>applications</tt>.
         </p>
         <p><b>Nearest correlation matrix problem