atan(log(x)) ------------ 3
1 ----------------- / 2 \ 3*x*\1 + log (x)/
/ 2*log(x) \ -|1 + -----------| | 2 | \ 1 + log (x)/ ------------------- 2 / 2 \ 3*x *\1 + log (x)/
/ 2 \ |1 1 log(x) 4*log (x) | 2*|- - --------------- + ----------- + ----------------| |3 / 2 \ 2 2| | 3*\1 + log (x)/ 1 + log (x) / 2 \ | \ 3*\1 + log (x)/ / -------------------------------------------------------- 3 / 2 \ x *\1 + log (x)/