(f)
return f.raw_new(-f.numer, f.denom)
Negate all coefficients in ``f``.
Negate all coefficients in ``f``.
Negate all coefficients in f .
def __neg__(f):
        """Negate all coefficients in ``f``. """
        return f.raw_new(-f.numer, f.denom)
def __neg__ ( f ) : return f . raw_new ( - f . numer , f . denom )