/ 2 \ log\x + 1/ 1 ----------- + atan(x) - ----- 2 1 + x
log(x^2 + 1)/2 + atan(x) - 1/(1 + x)
/ / 2\\ -2 + (1 + x)*\2*atan(x) + log\1 + x // -------------------------------------- 2*(1 + x)
(-2 + (1 + x)*(2*atan(x) + log(1 + x^2)))/(2*(1 + x))
/ 2\ / 2\ -2 + 2*atan(x) + x*log\1 + x / + 2*x*atan(x) + log\1 + x / ---------------------------------------------------------- 2*(1 + x)
(-2 + 2*atan(x) + x*log(1 + x^2) + 2*x*atan(x) + log(1 + x^2))/(2*(1 + x))
/ 2\ log\1 + x / 1 ----------- - ----- + atan(x) 2 1 + x
log(1 + x^2)/2 - 1/(1 + x) + atan(x)
/ / 2\\ -2 + (1 + x)*\2*atan(x) + log\1 + x // -------------------------------------- 2*(1 + x)
(-2 + (1 + x)*(2*atan(x) + log(1 + x^2)))/(2*(1 + x))
/ 2\ log\1 + x / 1 ----------- - ----- + atan(x) 2 1 + x
log(1 + x^2)/2 - 1/(1 + x) + atan(x)
/ 2\ log\1 + x / 1 ----------- - ----- + atan(x) 2 1 + x
log(1 + x^2)/2 - 1/(1 + x) + atan(x)
/ 2 \ log\x + 1/ 1 ----------- - ----- + atan(x) 2 1 + x
log(x^2 + 1)/2 - 1/(1 + x) + atan(x)
/ 2\ / 2\ -2 + 2*atan(x) + x*log\1 + x / + 2*x*atan(x) + log\1 + x / ---------------------------------------------------------- 2 + 2*x
(-2 + 2*atan(x) + x*log(1 + x^2) + 2*x*atan(x) + log(1 + x^2))/(2 + 2*x)
-1/(1.0 + x) + 0.5*log(x^2 + 1) + atan(x)
-1/(1.0 + x) + 0.5*log(x^2 + 1) + atan(x)