/log(x) \ x*log|------, 2| \log(2) /
x*log(log(x)/log(2), 2)
1 /log(x) \ ------ + log|------, 2| log(x) \log(2) /
1 1 - ------ log(x) ---------- x*log(x)
2 -1 + ------- 2 log (x) ------------ 2 x *log(x)