detmult()

ring_elem DetComputation::detmult ( ring_elem f1, ring_elem g1, ring_elem f2, ring_elem g2, ring_elem d )

private

Definition at line 308 of file det.cpp.

{
  ring_elem a = R->mult(f1, g1);
  ring_elem b = R->mult(f2, g2);
  R->subtract_to(a, b);
  if (!R->is_zero(d))
    {
      ring_elem tmp = R->divide(a, d);  // exact division
      R->remove(a);
      a = tmp;
    }
  R->remove(g1);
  return a;
}

References R.

Referenced by gauss().