title: How to normalise polynomial coefficients in a fraction?
body: <p>I have the following code:</p>
  
  <pre><code>syms z
  Gc=1.582*(1-0.3679*z^-1)/(1+.418*z^-1);
  Ghp=.3679*(z^-1)*(1+.718*z^-1)/((1-z^-1)*(1-.3679*z^-1));
  T=(Gc*Ghp)/(1+Gc*Ghp);
  clipboard('copy', latex(simplifyFraction(T)));
  </code></pre>
  
  <p>Which results in following for <code>T</code>:</p>
  
  <p><img src="https://i.stack.imgur.com/JCSM2.jpg" alt="enter image description here"></p>
  
  <p>How can I normalise coefficients? I.e. I want the z<sup>2</sup> in denominator and z in numerator to have the coefficient of 1. 
  Is there any function in Matlab to do so?</p>