I am trying to write CDF notes with demonstrations. If something is "unlikely to change" or (as in the documentation of Sort[]) "usually ..." is not good enough. This is not a problem with usual use of Mathematica, because one can react if something is not as we would expect. But CDF is a different thing. I am producing something which I have to be sure behaves as I intend it to behave 2-3 years from now. I can play with formatting, but the question remains, will future versions format it the same way? In this case, this is a Laurent polynomial in one variable with numbers as coefficients, but the order is not according to the degrees in that variable. The constant term is first, but it should be in the middle. I think, it is because what is written in the Sort[] documentation, that least complex terms are first, but still there is this "usually" in the documentation, which I don't understand. In any case, since my post I could sort out what I want with the use of CoefficientList[], where the documentation is quite explicit about the order.
