sign(x) |x|
------- - ---
x 2
x
$$\frac{\operatorname{sign}{\left(x \right)}}{x} - \frac{\left|{x}\right|}{x^{2}}$$
/|x| sign(x) \
2*|--- - ------- + DiracDelta(x)|
| 2 x |
\ x /
---------------------------------
x
$$\frac{2 \left(\delta\left(x\right) - \frac{\operatorname{sign}{\left(x \right)}}{x} + \frac{\left|{x}\right|}{x^{2}}\right)}{x}$$
/ 3*DiracDelta(x) 3*|x| 3*sign(x) \
2*|- --------------- - ----- + --------- + DiracDelta(x, 1)|
| x 3 2 |
\ x x /
------------------------------------------------------------
x
$$\frac{2 \left(\delta^{\left( 1 \right)}\left( x \right) - \frac{3 \delta\left(x\right)}{x} + \frac{3 \operatorname{sign}{\left(x \right)}}{x^{2}} - \frac{3 \left|{x}\right|}{x^{3}}\right)}{x}$$