title: Mathematical operation on columns of two files
body: <p>I have a file with 2 columns. I would like to do the following operation:
  Col1/ [ (1+0.214/(Col2*Col2))^2 ]. To do that I write an awk command:</p>
  
  <pre><code>awk '{print $1/(1+.214/($2*$2))*(1+.214/($2*$2))}' ab.txt &gt; G1.txt
  </code></pre>
  
  <p>But I am getting the same numbers as column1 in the output. Could anyone please tell me where I am going wrong?</p>
  
  <p>Thank you.</p>