def dup_exquo_ground(f, c, K):
 if (not c):
  raise ZeroDivisionError('polynomial division')
 if (not f):
  return f
 return [K.exquo(cf, c) for cf in f]

def dup_exquo_ground ( f , c , K ) : if ( not c ) : raise ZeroDivisionError ( 'polynomial division' ) if ( not f ) : return f return [ K . exquo ( cf , c ) for cf in f ]
exact quotient by a constant in k[x] .