is_one()

bool DPoly::is_one ( int level, const TowerPolynomial f )

static

Definition at line 595 of file dpoly.cpp.

{
  if (f == nullptr) return false;
  if (f->deg != 0) return false;
  if (level == 0)
    return 1 == f->arr.ints[0];
  else
    return is_one(level - 1, f->arr.polys[0]);
}

References is_one().

Referenced by division_in_place(), elem_text_out(), index_of_var(), invert(), is_one(), and mult_by_coeff_n().