// Rascal, the Advanced Scientific CALculator
// Copyright (C) 2001, 2002, Sebastian Ritterbusch (Rascal@Ritterbusch.de)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more detauls.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//

string polyVariable="";

valuepoly namedvaluepoly(string a)
{
   polyVariable=a;
   return valuepoly(0,1);
}

string output(const valuepoly & a)
{
   string out("");
   int i;
   if(polyVariable=="")
      polyVariable="X";
      
   for(i=a.N-1;i>=0;i--)
   {
      if(a.a[i]!=0)
      {
         if( !(a.a[i]<0) && i!=a.N-1)
            out+="+";
         if(a.a[i]!=1 || i==0)
         {
            value o(output(a.a[i]));
            if(o.isSTRING())
               out+=o.asSTRING();
            else
               out+="Error";
            if(i>0)
               out+="*";
         }
         if(i==1)
            out+=polyVariable;
         else if(i>1)
            out+=polyVariable+"^"+output(i);
      }
   }
   return out;
}