/ 2*x x \ 2 | 2*e 2*e | x pi *|-1 + -------- + -------------------|*e | 2*x / 2*x\ / x\| \ 1 + e \1 + e /*atan\E // -------------------------------------------- / 2*x\ 2/ x\ \1 + e /*atan \E /
/ 2*x 4*x x 2*x 3*x \ 2 | 8*e 8*e 6*e 6*e 12*e | x -pi *|1 - -------- + ----------- - ------------------- + --------------------- + --------------------|*e | 2*x 2 / 2*x\ / x\ 2 2 | | 1 + e / 2*x\ \1 + e /*atan\E / / 2*x\ 2/ x\ / 2*x\ / x\| \ \1 + e / \1 + e / *atan \E / \1 + e / *atan\E // ---------------------------------------------------------------------------------------------------------- / 2*x\ 2/ x\ \1 + e /*atan \E /