title: Octave. Get the first element from array
body: <p>I have a matrix that looks like:</p>
  
  <pre><code> matrix = 
   106168   1457100277117478     
   106069   1457100277417227    
   111159   1457100277850577   
   24408    1457100278150562 
  </code></pre>
  
  <p>I need to take the first element of the second column for my further calculation. But I failed to do that!</p>
  
  <p>The piece of code for that is the following:</p>
  
  <pre><code> time = matrix(:, 2(1));
   format long;
   disp('!time = '); disp(time);
  </code></pre>
  
  <p>As a result I got:</p>
  
  <pre><code>!time = 
     1457100277117478
     1457100277417227
     1457100277850577
     1457100278150562
  </code></pre>
  
  <p>I didn't use any loop :( 
  I would like to get only the first value, i.e., <code>1457100277117478</code>.
  What did I do in a wrong way?</p>