Re: Polynomial to List

*To*: mathgroup at smc.vnet.net*Subject*: [mg76900] Re: Polynomial to List*From*: dimitris <dimmechan at yahoo.com>*Date*: Wed, 30 May 2007 05:05:35 -0400 (EDT)*References*: <f3grip$49r$1@smc.vnet.net>

It is very easy. See below In[26]:= o = 1 + x + x^2 + x^3 + x^4 Out[26]= 1 + x + x^2 + x^3 + x^4 1) In[28]:= Reverse[List @@ o] Out[28]= {x^4, x^3, x^2, x, 1} 2) In[36]:= Cases[o, x^(n_.) | (x_Integer)]//Reverse Out[36]= {x^4, x^3, x^2, x, 1} 3) In[39]:= Reverse[o /. (x_) + (y___) -> {x, y}] Out[39]= {x^4, x^3, x^2, x, 1} Dimitris / Nick Hoffman : > I have a polynomial, > Lets say: > > 1 + x + x^2 + x^3 + x^4 > > > and all I need to do is get that into a list of this form > > {x^4, x^3, x^2, x, 1} > > Any help would be greatly appreciated! Thanks!