title: How can we use cordic to tanh(x+1)/tanh(x)?
body: <p>How can we use cordic to</p>
  
  <pre><code>tanh(x+1)/tanh(x)
  </code></pre>
  
  <p>I can't get a idea about how to apply <a href="https://en.wikipedia.org/wiki/CORDIC" rel="nofollow">cordic</a> to above function.</p>
  
  <p>In other word, which point on the above function, can we apply cordic?</p>