title: parallel computing in matlab
body: <p>suppose that we are working on simple computer,i would like to know if there is some difference in parallel code  computing and without parallel computing?there is link about parallel computing</p>
  
  <p><a href="http://www.bu.edu/tech/support/research/training-consulting/online-tutorials/matlab-pct/#TOPICS" rel="nofollow">http://www.bu.edu/tech/support/research/training-consulting/online-tutorials/matlab-pct/#TOPICS</a></p>
  
  <p>there is given several example,related to integration,eigenvalue  calculation and so on,but  is there any difference  if i do it using parallel computing or  without it?for instant i want to calculate  eigenvalue decomposition on huge matrix,how can i distribute it along 4 client and how  to get result finally?please show me some codes or examples related to this topic,thanks in advance,for instance  we have this matrix</p>
  
  <pre><code>a=rand(200,200);
  &gt;&gt; tic
  &gt;&gt; [V,D]=eig(a);
  &gt;&gt; toc
  Elapsed time is 9.819754 seconds.
  </code></pre>
  
  <p>what about parallel computing?</p>