title: Quickly fill in cell array with numeric string
body: <p>I would like to build a cell array of strings: <code>{'x_1', 'x_2', ..., 'x_n'}</code>. I know what <code>n</code> is ahead of time. Naively I might build this cell array as follows:</p>
  
  <pre><code>for i = 1:n
      myCell{i} = sprintf('x_%d', i);
  end
  </code></pre>
  
  <p>Is there a more elegant way to do this, i.e., a one-liner?</p>