(1+1m)f\left(1+\dfrac{1}{m}\right) f(1+m1)f
(1−1m)f\left(1-\dfrac{1}{m}\right) f(1−m1)f
(1+m)f\left(1+m\right) f(1+m)f
(1−m)f\left(1-m\right) f(1−m)f
