title: Formatting values of plot axis
body: <p>I have produced two pngs of the same size with the command:</p>
  
  <pre><code>figure; plot(...);
  print('-dpng', 'plotname1', '-S500,360');
  figure; plot(...);
  print('-dpng', 'plotname2', '-S500,360');
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/LqZam.png" alt="">
  <img src="https://i.stack.imgur.com/sSSeO.png" alt=""></p>
  
  <p>As you can see, these images aren't aligned (the first one is "wider").</p>
  
  <p>Is it possible to set the format of numbers in the y-axis? I would like to force the y-axis to use, for example, always only <em>1 digit</em> base thus removing values like "2.5e-13" in favor of "3e-13" or "2e-13".</p>
  
  <p>(The x-axis is a bit ugly now, but it's not a problem since I will print these plots wider eventually)</p>