/*
 * Computer Algebra Kit (c) 1993,00 by Comp.Alg.Objects.  All Rights Reserved.
 * $Id: srspolc.m,v 1.6 2000/10/12 14:40:26 stes Exp $
 */

/*
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Library 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 Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "cakit.h"

@implementation varspsrecdegsps_polynomial
+ scalarZero:aScalar
{
  return [self subclassResponsibility:_cmd];
}

+ scalar:aScalar
{
  if ([aScalar isZero])
    {
      return [self scalarZero:aScalar];
    }
  else
    {
      id p, term;
      p = [self scalarZero:[aScalar zero]];
      term = [[p termZero] coefficient:aScalar symbol:nil exponent:0];
      return [p insertTerm:term];
    }
}

- (BOOL)isVariableDense		
{
  return NO;
}
- (BOOL)isVariableSparse	
{
  return YES;
}
- (BOOL)isRecursive		
{
  return YES;
}
- (BOOL)isExpanded		
{
  return NO;
}
- (BOOL)isDegreeDense		
{
  return NO;
}
- (BOOL)isDegreeSparse		
{
  return YES;
}

@end