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