x 1 + ----------- ________ / 2 \/ x + 1 --------------- ________ / 2 x + \/ x + 1
(1 + x/sqrt(x^2 + 1))/(x + sqrt(x^2 + 1))
(1.0 + x*(1.0 + x^2)^(-0.5))/(x + (1.0 + x^2)^0.5)
(1.0 + x*(1.0 + x^2)^(-0.5))/(x + (1.0 + x^2)^0.5)
________ / 2 x + \/ 1 + x ---------------------- ________ 2 / 2 1 + x + x*\/ 1 + x
(x + sqrt(1 + x^2))/(1 + x^2 + x*sqrt(1 + x^2))