binomial_to_vector() [2/2]

vec binomial_ring::binomial_to_vector	(	binomial	f,
		int	n ) const

Definition at line 318 of file gb-toric.cpp.

{
  vec v1 = monomial_to_vector(f.lead);
  bool include_tail = false;
  if (n == 0)
    include_tail = true;
  else if (n == 1 && degree(f.tail) == degree(f.lead))
    include_tail = true;
  else if (n == 2 && degree(f.tail) == degree(f.lead) &&
           weight(f.tail) == weight(f.lead))
    include_tail = true;
 
  if (include_tail)
    {
      vec v2 = monomial_to_vector(f.tail);
      R->subtract_vec_to(v1, v2);
    }
  return v1;
}

References degree(), binomial::lead, monomial_to_vector(), R, binomial::tail, and weight().