title: Removing multiple elements from a matrix in octave
body: <p>Say I have a matrix A.</p>
  
  <pre><code>A = [ 2 2 2; 
        3 3 3; 
        4 4 4; 
        5 5 5; 
        6 6 6]
  </code></pre>
  
  <p>And </p>
  
  <pre><code>B = [0 1 0 1 0]
  </code></pre>
  
  <p>And I would like to remove all the rows from <code>A</code> where <code>B == 1</code></p>
  
  <p>So after the operation I would want <code>A</code> to be </p>
  
  <pre><code>[ 2 2 2; 4 4 4; 6 6 6;]
  </code></pre>
  
  <p>How do I go about doing this ?</p>