scalar_mult()

Matrix * Matrix::scalar_mult	(	const ring_elem	r,
		bool	opposite_mult ) const

Definition at line 588 of file matrix.cpp.

{
  auto R = get_ring();
  auto D = R->degree_monoid();
  monomial deg = D->make_one();
  if (!R->is_zero(r)) R->multi_degree(r, deg);
  D->mult(deg, degree_shift(), deg);
  MatrixConstructor mat(rows(), cols(), deg);
  for (int i = 0; i < n_cols(); i++)
    {
      vec w = R->copy_vec(elem(i));
      R->mult_vec_to(w, r, opposite_mult);
      mat.set_column(i, w);
    }
  return mat.to_matrix();
}

References cols(), degree_shift(), elem(), get_ring(), Matrix(), MatrixConstructor, monomial, n_cols(), rows(), scalar_mult(), MatrixConstructor::set_column(), and MatrixConstructor::to_matrix().

Referenced by scalar_mult().