sign(x) |x|
------- - ---
x 2
x
/|x| sign(x) \
2*|--- - ------- + DiracDelta(x)|
| 2 x |
\ x /
---------------------------------
x
/ 3*DiracDelta(x) 3*|x| 3*sign(x) \
2*|- --------------- - ----- + --------- + DiracDelta(x, 1)|
| x 3 2 |
\ x x /
------------------------------------------------------------
x