subtract()

ring_elem Tower::subtract ( const ring_elem f, const ring_elem g ) const

virtual

Implements Ring.

Definition at line 197 of file tower.cpp.

{
  TowerPolynomial f1 = TOWER_POLYNOMIAL_VAL(f);
  TowerPolynomial g1 = TOWER_POLYNOMIAL_VAL(g);
  TowerPolynomial h;
  D->set_zero(h);
  D->subtract(h, f1, g1);
  return TOWER_RINGELEM(h);
}

References D, TOWER_POLYNOMIAL_VAL, and TOWER_RINGELEM.