title: How to make a polynomial approximation in Scilab?
body: <p>I've a set of measures, which I want to approximate. I know I can do that with a 4th degree polynomial, but I don't know how to find it's five coefficients using Scilab.</p>
  
  <p>For now, I must use the user-friendly functions of Open office calc... So, to keep using only Scilab, I'd like to know if a built-in function exists, or if we can use a simple script.</p>