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