E / 2*x 2*E E*(1 - E)*acot(x)\ x *|--------- - ---------- - -----------------| | 2 / 2\ 2 | |/ 2\ x*\1 + x / x | \\1 + x / /
/ / 2 \ \ | | 4*x | | | 2*|-1 + ------| | | | 2| / 2\ | E | \ 1 + x / 6*E E*\2 - 3*E + e /*acot(x) 3*E*(1 - E)| x *|- --------------- + --------- + ------------------------ + -----------| | 2 2 3 2 / 2\| | / 2\ / 2\ x x *\1 + x /| \ \1 + x / \1 + x / /