title: Exclude elements from array
body: <p>I have a column vector: </p>
  
  <pre><code>A = [1; 2; 3; 4; 4; 5; 5; 7]; 
  </code></pre>
  
  <p>I wish to exclude the elements of <code>A</code> that are in a second matrix <code>B</code>: </p>
  
  <pre><code>B = [4; 5]
  </code></pre>
  
  <p>The final result should be:</p>
  
  <pre><code>A = [1; 2; 3; 7]
  </code></pre>
  
  <p>I am pretty sure using MATLAB elegant syntaxing, this be accomplished without writing a <code>for</code> loop, but not sure how?</p>