1 1
---------- - -----------
_______ ____
/ 2 2 / 2
\/ a *x \/ a *|x|
$$- \frac{1}{\sqrt{a^{2}} \left|{x}\right|} + \frac{1}{\sqrt{a^{2} x^{2}}}$$
1 sign(x)
- --- + -------
|x| x
---------------
____
/ 2
x*\/ a
$$\frac{- \frac{1}{\left|{x}\right|} + \frac{\operatorname{sign}{\left(x \right)}}{x}}{x \sqrt{a^{2}}}$$
1 sign(x)
--- + 2*DiracDelta(x) - -------
|x| x
-------------------------------
____
2 / 2
x *\/ a
$$\frac{2 \delta\left(x\right) + \frac{1}{\left|{x}\right|} - \frac{\operatorname{sign}{\left(x \right)}}{x}}{x^{2} \sqrt{a^{2}}}$$