diff_0()

TowerPolynomial DPoly::diff_0 ( const TowerPolynomial f )

private

Definition at line 1326 of file dpoly.cpp.

{
  if (f == nullptr || f->deg == 0) return nullptr;
  TowerPolynomial result = alloc_poly_0(f->deg - 1);
  for (int i = 1; i <= f->deg; i++)
    {
      long c = f->arr.ints[i];
      if (c != 0)
        {
          ZZp_MULT(charac, c, i);
          result->arr.ints[i - 1] = c;
        }
    }
  reset_degree_0(result);
  return result;
}

References alloc_poly_0(), charac, reset_degree_0(), result(), and ZZp_MULT().

Referenced by diff().