/ 2 \ | x | lim |------| x->0+\log(x)/
0
= -1.50782837287486e-8
/ 2 \ | x | lim |------| x->0-\log(x)/
= (-1.222423231683e-8 - 5.77275207891661e-9j)
-1.50782837287486e-8