title: Totally remove elements that appear multiple times in array Matlab
body: <p>Given the following array:</p>
  
  <pre><code>A=[1,2,3,4,5,6,7,8,9,2,4,5,8,4,6,7,1,2,8,5,14,100,101];
  </code></pre>
  
  <p>how can every elements that appear multiple times be removed in the simplest manner, without any computational effort, for any general case i.e, to obtain:</p>
  
  <pre><code>A=[3,9,14,100,101];
  </code></pre>