atan(x - 1) ----------- / 1 atan(x - 1)\ x + 1 |---------------------- - -----------|*e |/ 2\ 2 | \\1 + (x - 1) /*(x + 1) (x + 1) /
/ 2 \ |/ 1 atan(-1 + x)\ | ||------------- - ------------| | atan(-1 + x) || 2 1 + x | | ------------ |\1 + (-1 + x) / 2 2*(-1 + x) 2*atan(-1 + x)| 1 + x |------------------------------- - ----------------------- - ---------------- + --------------|*e | 1 + x / 2\ 2 2 | | (1 + x)*\1 + (-1 + x) / / 2\ (1 + x) | \ \1 + (-1 + x) / / ------------------------------------------------------------------------------------------------------------- 1 + x
/ 3 / 1 atan(-1 + x)\ / 1 -1 + x atan(-1 + x)\ \ | / 1 atan(-1 + x)\ 6*|------------- - ------------|*|----------------------- + ---------------- - ------------| | | |------------- - ------------| | 2 1 + x | | / 2\ 2 2 | | atan(-1 + x) | | 2 1 + x | 2 \1 + (-1 + x) / |(1 + x)*\1 + (-1 + x) / / 2\ (1 + x) | | ------------ | 2 \1 + (-1 + x) / 6*atan(-1 + x) 6 8*(-1 + x) \ \1 + (-1 + x) / / 6*(-1 + x) | 1 + x |- ---------------- + ------------------------------- - -------------- + ------------------------ + ---------------- - -------------------------------------------------------------------------------------------- + ------------------------|*e | 2 2 3 2 / 2\ 3 1 + x 2| | / 2\ (1 + x) (1 + x) (1 + x) *\1 + (-1 + x) / / 2\ / 2\ | \ \1 + (-1 + x) / \1 + (-1 + x) / (1 + x)*\1 + (-1 + x) / / ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 1 + x