title: In a 100 X 2 matrix, how do divide each element in column 2 by a constant?
body: <p>I have a 100 by 2 matrix.  And I'm trying to figure out how to divide all terms in the second column by a constant.  </p>
  
  <p>For example, let's say I have this matrix.</p>
  
  <pre><code>[1  2;
  3  4;
  5  6]
  </code></pre>
  
  <p>I want to divide the 2nd column by 2.</p>
  
  <pre><code>[1  2/2;
  3  4/2;
  5  6/2]
  </code></pre>
  
  <p>So my final matrix will be.</p>
  
  <pre><code>[1  1;
  3  2;
  5  3]
  </code></pre>
  
  <p>Thank you.  </p>