/ d d \
x*|(1 + re(x))*--(re(x)) + --(im(x))*im(x)|
\ dx dx /
------------------------------------------- + |x + 1|
|x + 1| $$\frac{x}{\left|{x + 1}\right|} \left(\left(\Re{x} + 1\right) \frac{d}{d x} \Re{x} + \Im{x} \frac{d}{d x} \Im{x}\right) + \left|{x + 1}\right|$$
2
/ d d \
/ 2 2 2 2 \ x*|(1 + re(x))*--(re(x)) + --(im(x))*im(x)|
|/d \ /d \ d d | d d \ dx dx /
x*||--(im(x))| + |--(re(x))| + (1 + re(x))*---(re(x)) + ---(im(x))*im(x)| + 2*(1 + re(x))*--(re(x)) + 2*--(im(x))*im(x) - --------------------------------------------
|\dx / \dx / 2 2 | dx dx 2
\ dx dx / |1 + x|
------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|1 + x| $$\frac{1}{\left|{x + 1}\right|} \left(- \frac{x}{\left|{x + 1}\right|^{2}} \left(\left(\Re{x} + 1\right) \frac{d}{d x} \Re{x} + \Im{x} \frac{d}{d x} \Im{x}\right)^{2} + x \left(\left(\Re{x} + 1\right) \frac{d^{2}}{d x^{2}} \Re{x} + \Im{x} \frac{d^{2}}{d x^{2}} \Im{x} + \frac{d}{d x} \Re{x}^{2} + \frac{d}{d x} \Im{x}^{2}\right) + 2 \left(\Re{x} + 1\right) \frac{d}{d x} \Re{x} + 2 \Im{x} \frac{d}{d x} \Im{x}\right)$$
/ 2 2 2 2 \
2 3 / d d \ |/d \ /d \ d d |
/ d d \ / d d \ 3*x*|(1 + re(x))*--(re(x)) + --(im(x))*im(x)|*||--(im(x))| + |--(re(x))| + (1 + re(x))*---(re(x)) + ---(im(x))*im(x)|
2 2 / 3 3 2 2 \ 3*|(1 + re(x))*--(re(x)) + --(im(x))*im(x)| 2 2 3*x*|(1 + re(x))*--(re(x)) + --(im(x))*im(x)| \ dx dx / |\dx / \dx / 2 2 |
/d \ /d \ | d d d d d d | \ dx dx / d d \ dx dx / \ dx dx /
3*|--(im(x))| + 3*|--(re(x))| + x*|(1 + re(x))*---(re(x)) + ---(im(x))*im(x) + 3*--(im(x))*---(im(x)) + 3*--(re(x))*---(re(x))| - -------------------------------------------- + 3*(1 + re(x))*---(re(x)) + 3*---(im(x))*im(x) + ---------------------------------------------- - -----------------------------------------------------------------------------------------------------------------------
\dx / \dx / | 3 3 dx 2 dx 2 | 2 2 2 4 2
\ dx dx dx dx / |1 + x| dx dx |1 + x| |1 + x|
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|1 + x| $$\frac{1}{\left|{x + 1}\right|} \left(\frac{3 x}{\left|{x + 1}\right|^{4}} \left(\left(\Re{x} + 1\right) \frac{d}{d x} \Re{x} + \Im{x} \frac{d}{d x} \Im{x}\right)^{3} - \frac{3 x}{\left|{x + 1}\right|^{2}} \left(\left(\Re{x} + 1\right) \frac{d}{d x} \Re{x} + \Im{x} \frac{d}{d x} \Im{x}\right) \left(\left(\Re{x} + 1\right) \frac{d^{2}}{d x^{2}} \Re{x} + \Im{x} \frac{d^{2}}{d x^{2}} \Im{x} + \frac{d}{d x} \Re{x}^{2} + \frac{d}{d x} \Im{x}^{2}\right) + x \left(\left(\Re{x} + 1\right) \frac{d^{3}}{d x^{3}} \Re{x} + \Im{x} \frac{d^{3}}{d x^{3}} \Im{x} + 3 \frac{d}{d x} \Re{x} \frac{d^{2}}{d x^{2}} \Re{x} + 3 \frac{d}{d x} \Im{x} \frac{d^{2}}{d x^{2}} \Im{x}\right) - \frac{3}{\left|{x + 1}\right|^{2}} \left(\left(\Re{x} + 1\right) \frac{d}{d x} \Re{x} + \Im{x} \frac{d}{d x} \Im{x}\right)^{2} + 3 \left(\Re{x} + 1\right) \frac{d^{2}}{d x^{2}} \Re{x} + 3 \Im{x} \frac{d^{2}}{d x^{2}} \Im{x} + 3 \frac{d}{d x} \Re{x}^{2} + 3 \frac{d}{d x} \Im{x}^{2}\right)$$