________ / 2 \/ x - 1 x*atan(x) ----------- + ----------- 2 ________ 1 + x / 2 \/ x - 1
/ 2 \ | x | |-1 + -------|*atan(x) _________ | 2| / 2 \ -1 + x / 2*x*\/ -1 + x 2*x - ---------------------- - ---------------- + --------------------- _________ 2 _________ / 2 / 2\ / 2\ / 2 \/ -1 + x \1 + x / \1 + x /*\/ -1 + x
/ 2 \ _________ / 2 \ / 2 \ | x | / 2 | 4*x | | x | 3*|-1 + -------| 2*\/ -1 + x *|-1 + ------| 3*x*|-1 + -------|*atan(x) 2 | 2| | 2| | 2| 6*x \ -1 + x / \ 1 + x / \ -1 + x / - ---------------------- - --------------------- + ---------------------------- + -------------------------- 2 _________ _________ 2 3/2 / 2\ / 2 / 2\ / 2 / 2\ / 2\ \1 + x / *\/ -1 + x \1 + x /*\/ -1 + x \1 + x / \-1 + x /