preferred_associate()

ring_elem Ring::preferred_associate ( ring_elem f ) const

virtual

Reimplemented in M2::RingQQ, PolyRing, PolyRingQuotient, and RingZZ.

Definition at line 290 of file ring.cpp.

{
  // Here we assume that 'this' is a field:
  if (is_zero(f)) return from_long(1);
  return invert(f);
}

References from_long(), invert(), and is_zero().