/ 1 x - 1 \ -|----- - --------| |x + 1 2| \ (x + 1) / -------------------- ______________ / 2 / (x - 1) / 1 - -------- / 2 \/ (x + 1)
/ / -1 + x\\ | (-1 + x)*|-1 + ------|| / -1 + x\ | \ 1 + x /| -|-1 + ------|*|2 + -----------------------| \ 1 + x / | / 2\| | | (-1 + x) || | (1 + x)*|1 - ---------|| | | 2|| \ \ (1 + x) // --------------------------------------------- _______________ / 2 2 / (-1 + x) (1 + x) * / 1 - --------- / 2 \/ (1 + x)
/ 2 \ | 4*(-1 + x) 3*(-1 + x) 2 | | 1 - ---------- + ----------- 2 / -1 + x\ / -1 + x\| | 1 + x 2 3*(-1 + x) *|-1 + ------| 4*(-1 + x)*|-1 + ------|| / -1 + x\ | (1 + x) \ 1 + x / \ 1 + x /| |-1 + ------|*|6 + ---------------------------- + -------------------------- + ------------------------| \ 1 + x / | 2 2 / 2\ | | (-1 + x) / 2\ | (-1 + x) | | | 1 - --------- 2 | (-1 + x) | (1 + x)*|1 - ---------| | | 2 (1 + x) *|1 - ---------| | 2| | | (1 + x) | 2| \ (1 + x) / | \ \ (1 + x) / / -------------------------------------------------------------------------------------------------------- _______________ / 2 3 / (-1 + x) (1 + x) * / 1 - --------- / 2 \/ (1 + x)