title: MATLAB fitting of data to a inverse quadratic equation
body: <p>I have a bunch of data, and I want a fitting with a function that I want, for example, <code>1/(ax^2+bx+c)</code>. My objective is to get a,b,c values.</p>
  
  <p>Is there any function of MATLAB that helps with this? I have been checking the <code>fit()</code> function, but I didn't reach a conclusion. Which is the best way? </p>