title: How to label axis ticks in a scientific notation as in latex?
body: <pre><code>plot(1:10, (1:10)*1e6, xaxt='n', yaxt='n', xlab='', ylab='')
  axis(2, (1:10)*1e6, (1:10)*1e6, las=2)
  </code></pre>
  <p>The axis ticks are shown as &quot;1e+06&quot;, ...</p>
  <p>How to show them like $1 \times 10^6$ (as in latex), ...?</p>