title: Coefficients of polynomials maxima
body: <p>Is there a built-in function in maxima to get from a polynomial function a list with its coefficients? And to get the degree of the polynomial?</p>
  
  <p>The most similar function I found is <code>args</code>, but it also returns the variable together with the coefficient. I could have accepted this, still more when using <code>length</code> together with <code>args</code> would return the degree. The problem is that <code>args</code> doesn't work with zero-degree polynomials.</p>
  
  <p>Is there another function that adjusts better to these purposes? Thanks in advance.</p>