mult_by_term()

ring_elem SchurRing::mult_by_term ( const ring_elem f, const ring_elem c, const int * m ) const

virtual

Reimplemented from PolyRing.

Definition at line 266 of file schur.cpp.

{
  // return c*m*f
  ring_elem result = ZERO_RINGELEM;
  for (Nterm& t : f)
    {
      ring_elem a = K_->mult(c, t.coeff);
      ring_elem g = const_cast<SchurRing *>(this)->mult_monomials(t.monom, m);
      for (Nterm& s : g)
        {
          ring_elem b = K_->mult(a, s.coeff);
          s.coeff = b;
        }
      Nterm *gt = g;
      sort(gt);
      g = gt;
      add_to(result, g);
    }
  return result;
}

References Ring::add_to(), PolynomialRing::K_, mult_monomials(), result(), s, SchurRing(), PolyRing::sort(), and ZERO_RINGELEM.