title: String concatenation with spaces
body: <p>I would like to concatenate strings. I tried using <code>strcat</code>:</p>
  
  <pre><code>x = 5;
  m = strcat('is', num2str(x)) 
  </code></pre>
  
  <p>but this function removes trailing white-space characters from each string. Is there another MATLAB function to perform string concatenation which maintains trailing white-space?</p>