title: sort data in scientific notation. sort -g does not work
body: <p>I meant to comment <a href="https://stackoverflow.com/questions/4324923/bash-sort-numbers-with-exponents">here</a> but I lack the required reputation.
  I need to sort data as the following block and <code>sort</code> would be just fine.
  However, upon performing  <code>sort -g</code> on the following data I get the exact same figures - sorted if it weren't for the <em>e..</em>.</p>
  
  <p>input and output: </p>
  
  <pre><code>0.00000000e+00
  1.02272602e-02
  1.25536099e-01
  1.26666948e-02
  1.29036099e-01
  </code></pre>
  
  <p>expected output</p>
  
  <pre><code>0.00000000e+00
  1.02272602e-02
  1.26666948e-02
  1.25536099e-01
  1.29036099e-01
  </code></pre>
  
  <p>Many thanks in advance!
  Alternatives are welcome, though I will need to be able to sort by a specified column such as the second column in this block:</p>
  
  <pre><code>1.00000e+02, 0.00000000e+00
  2.00000e+02, 1.02272602e-02
  3.00000e+02, 1.25536099e-01
  4.00000e+02, 1.26666948e-02
  5.00000e+02, 1.29036099e-01
  </code></pre>