mult_vec_matrix()

vec Ring::mult_vec_matrix	(	const Matrix *	m,
		vec	v,
		bool	opposite_mult ) const

Definition at line 466 of file ring-vecs.cpp.

{
  // Multiply m * v, using left or right mult for each scalar mult.
 
  // Each loop below should read
  // result = 0
  // for each non-zero term f e[component] of the vector v
  //    result += f M[v]
  vec result = nullptr;
  for (; v != nullptr; v = v->next)
    {
      vec w = this->copy_vec(m->elem(v->comp));
      mult_vec_to(w, v->coeff, !opposite_mult);
      this->add_vec_to(result, w);
    }
  return result;
}

References add_vec_to(), copy_vec(), Matrix::elem(), Matrix, mult_vec_to(), and result().

Referenced by Matrix::mult().