/ 2\ \1 + x /*acot(x) - x*log(x) --------------------------- / 2\ x*\1 + x /
((1 + x^2)*acot(x) - x*log(x))/(x*(1 + x^2))
/ 2\ \1 + x /*acot(x) - x*log(x) --------------------------- / 2\ x*\1 + x /
((1 + x^2)*acot(x) - x*log(x))/(x*(1 + x^2))
2 x *acot(x) - x*log(x) + acot(x) ------------------------------- 3 x + x
(x^2*acot(x) - x*log(x) + acot(x))/(x + x^3)
2 x *acot(x) - x*log(x) + acot(x) ------------------------------- / 2\ x*\1 + x /
(x^2*acot(x) - x*log(x) + acot(x))/(x*(1 + x^2))
/ 2\ \1 + x /*acot(x) - x*log(x) --------------------------- / 2\ x*\1 + x /
((1 + x^2)*acot(x) - x*log(x))/(x*(1 + x^2))