/ d d \ / 2 2 \ / d d \
|- 2*--(im(x))*im(x) + 2*--(re(x))*re(x)|*\1 + re (x) - im (x)/ + 2*|2*--(im(x))*re(x) + 2*--(re(x))*im(x)|*im(x)*re(x)
\ dx dx / \ dx dx /
-----------------------------------------------------------------------------------------------------------------------
| 2 |
|x + 1|
$$\frac{1}{\left|{x^{2} + 1}\right|} \left(\left(2 \Re{x} \frac{d}{d x} \Re{x} - 2 \Im{x} \frac{d}{d x} \Im{x}\right) \left(\left(\Re{x}\right)^{2} - \left(\Im{x}\right)^{2} + 1\right) + 2 \left(2 \Re{x} \frac{d}{d x} \Im{x} + 2 \Im{x} \frac{d}{d x} \Re{x}\right) \Re{x} \Im{x}\right)$$
/ 2 \
| //d d \ / 2 2 \ /d d \ \ |
| 2 / 2 2 2 2 \ 2*||--(re(x))*re(x) - --(im(x))*im(x)|*\1 + re (x) - im (x)/ + 2*|--(im(x))*re(x) + --(re(x))*im(x)|*im(x)*re(x)| / 2 2 \ |
| /d d \ / 2 2 \ |/d \ /d \ d d | \\dx dx / \dx dx / / /d d \ d /d d \ d | d d d d | |
2*|2*|--(re(x))*re(x) - --(im(x))*im(x)| + \1 + re (x) - im (x)/*||--(re(x))| - |--(im(x))| + ---(re(x))*re(x) - ---(im(x))*im(x)| - ------------------------------------------------------------------------------------------------------------------ + 2*|--(im(x))*re(x) + --(re(x))*im(x)|*--(im(x))*re(x) + 2*|--(im(x))*re(x) + --(re(x))*im(x)|*--(re(x))*im(x) + 2*|---(im(x))*re(x) + ---(re(x))*im(x) + 2*--(im(x))*--(re(x))|*im(x)*re(x)|
| \dx dx / |\dx / \dx / 2 2 | 2 \dx dx / dx \dx dx / dx | 2 2 dx dx | |
| \ dx dx / | 2| \dx dx / |
\ |1 + x | /
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| 2|
|1 + x |
$$\frac{1}{\left|{x^{2} + 1}\right|} \left(- \frac{4}{\left|{x^{2} + 1}\right|^{2}} \left(\left(\Re{x} \frac{d}{d x} \Re{x} - \Im{x} \frac{d}{d x} \Im{x}\right) \left(\left(\Re{x}\right)^{2} - \left(\Im{x}\right)^{2} + 1\right) + 2 \left(\Re{x} \frac{d}{d x} \Im{x} + \Im{x} \frac{d}{d x} \Re{x}\right) \Re{x} \Im{x}\right)^{2} + 4 \left(\Re{x} \frac{d}{d x} \Re{x} - \Im{x} \frac{d}{d x} \Im{x}\right)^{2} + 4 \left(\Re{x} \frac{d}{d x} \Im{x} + \Im{x} \frac{d}{d x} \Re{x}\right) \Re{x} \frac{d}{d x} \Im{x} + 4 \left(\Re{x} \frac{d}{d x} \Im{x} + \Im{x} \frac{d}{d x} \Re{x}\right) \Im{x} \frac{d}{d x} \Re{x} + 4 \left(\Re{x} \frac{d^{2}}{d x^{2}} \Im{x} + \Im{x} \frac{d^{2}}{d x^{2}} \Re{x} + 2 \frac{d}{d x} \Re{x} \frac{d}{d x} \Im{x}\right) \Re{x} \Im{x} + 2 \left(\left(\Re{x}\right)^{2} - \left(\Im{x}\right)^{2} + 1\right) \left(\Re{x} \frac{d^{2}}{d x^{2}} \Re{x} - \Im{x} \frac{d^{2}}{d x^{2}} \Im{x} + \frac{d}{d x} \Re{x}^{2} - \frac{d}{d x} \Im{x}^{2}\right)\right)$$
/ / 2 / 2 2 2 2 \ / 2 2 \ \ \
| 3 //d d \ / 2 2 \ /d d \ \ | /d d \ / 2 2 \ |/d \ /d \ d d | /d d \ d /d d \ d | d d d d | | |
| //d d \ / 2 2 \ /d d \ \ 6*||--(re(x))*re(x) - --(im(x))*im(x)|*\1 + re (x) - im (x)/ + 2*|--(im(x))*re(x) + --(re(x))*im(x)|*im(x)*re(x)|*|2*|--(re(x))*re(x) - --(im(x))*im(x)| + \1 + re (x) - im (x)/*||--(re(x))| - |--(im(x))| + ---(re(x))*re(x) - ---(im(x))*im(x)| + 2*|--(im(x))*re(x) + --(re(x))*im(x)|*--(im(x))*re(x) + 2*|--(im(x))*re(x) + --(re(x))*im(x)|*--(re(x))*im(x) + 2*|---(im(x))*re(x) + ---(re(x))*im(x) + 2*--(im(x))*--(re(x))|*im(x)*re(x)| |
| / 3 3 2 2 \ / 2 2 2 2 \ 12*||--(re(x))*re(x) - --(im(x))*im(x)|*\1 + re (x) - im (x)/ + 2*|--(im(x))*re(x) + --(re(x))*im(x)|*im(x)*re(x)| \\dx dx / \dx dx / / | \dx dx / |\dx / \dx / 2 2 | \dx dx / dx \dx dx / dx | 2 2 dx dx | | 2 2 / 3 3 2 2 \ / 2 2 \ / 2 2 \ |
|/ 2 2 \ | d d d d d d | /d d \ |/d \ /d \ d d | \\dx dx / \dx dx / / \ \ dx dx / \dx dx / / /d d \ d /d d \ d | d d d d d d | /d d \ d d | d d d d | d | d d d d | d |
2*|\1 + re (x) - im (x)/*|---(re(x))*re(x) - ---(im(x))*im(x) - 3*--(im(x))*---(im(x)) + 3*--(re(x))*---(re(x))| + 6*|--(re(x))*re(x) - --(im(x))*im(x)|*||--(re(x))| - |--(im(x))| + ---(re(x))*re(x) - ---(im(x))*im(x)| + ------------------------------------------------------------------------------------------------------------------- - ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + 2*|--(im(x))*re(x) + --(re(x))*im(x)|*---(im(x))*re(x) + 2*|--(im(x))*re(x) + --(re(x))*im(x)|*---(re(x))*im(x) + 2*|---(im(x))*re(x) + ---(re(x))*im(x) + 3*--(im(x))*---(re(x)) + 3*--(re(x))*---(im(x))|*im(x)*re(x) + 4*|--(im(x))*re(x) + --(re(x))*im(x)|*--(im(x))*--(re(x)) + 4*|---(im(x))*re(x) + ---(re(x))*im(x) + 2*--(im(x))*--(re(x))|*--(im(x))*re(x) + 4*|---(im(x))*re(x) + ---(re(x))*im(x) + 2*--(im(x))*--(re(x))|*--(re(x))*im(x)|
| | 3 3 dx 2 dx 2 | \dx dx / |\dx / \dx / 2 2 | 4 2 \dx dx / 2 \dx dx / 2 | 3 3 dx 2 dx 2 | \dx dx / dx dx | 2 2 dx dx | dx | 2 2 dx dx | dx |
| \dx dx dx dx / \ dx dx / | 2| | 2| dx dx \dx dx dx dx / \dx dx / \dx dx / |
\ |1 + x | |1 + x | /
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| 2|
|1 + x |
$$\frac{1}{\left|{x^{2} + 1}\right|} \left(\frac{24}{\left|{x^{2} + 1}\right|^{4}} \left(\left(\Re{x} \frac{d}{d x} \Re{x} - \Im{x} \frac{d}{d x} \Im{x}\right) \left(\left(\Re{x}\right)^{2} - \left(\Im{x}\right)^{2} + 1\right) + 2 \left(\Re{x} \frac{d}{d x} \Im{x} + \Im{x} \frac{d}{d x} \Re{x}\right) \Re{x} \Im{x}\right)^{3} - \frac{12}{\left|{x^{2} + 1}\right|^{2}} \left(\left(\Re{x} \frac{d}{d x} \Re{x} - \Im{x} \frac{d}{d x} \Im{x}\right) \left(\left(\Re{x}\right)^{2} - \left(\Im{x}\right)^{2} + 1\right) + 2 \left(\Re{x} \frac{d}{d x} \Im{x} + \Im{x} \frac{d}{d x} \Re{x}\right) \Re{x} \Im{x}\right) \left(2 \left(\Re{x} \frac{d}{d x} \Re{x} - \Im{x} \frac{d}{d x} \Im{x}\right)^{2} + 2 \left(\Re{x} \frac{d}{d x} \Im{x} + \Im{x} \frac{d}{d x} \Re{x}\right) \Re{x} \frac{d}{d x} \Im{x} + 2 \left(\Re{x} \frac{d}{d x} \Im{x} + \Im{x} \frac{d}{d x} \Re{x}\right) \Im{x} \frac{d}{d x} \Re{x} + 2 \left(\Re{x} \frac{d^{2}}{d x^{2}} \Im{x} + \Im{x} \frac{d^{2}}{d x^{2}} \Re{x} + 2 \frac{d}{d x} \Re{x} \frac{d}{d x} \Im{x}\right) \Re{x} \Im{x} + \left(\left(\Re{x}\right)^{2} - \left(\Im{x}\right)^{2} + 1\right) \left(\Re{x} \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)\right) + 12 \left(\Re{x} \frac{d}{d x} \Re{x} - \Im{x} \frac{d}{d x} \Im{x}\right) \left(\Re{x} \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) + 4 \left(\Re{x} \frac{d}{d x} \Im{x} + \Im{x} \frac{d}{d x} \Re{x}\right) \Re{x} \frac{d^{2}}{d x^{2}} \Im{x} + 4 \left(\Re{x} \frac{d}{d x} \Im{x} + \Im{x} \frac{d}{d x} \Re{x}\right) \Im{x} \frac{d^{2}}{d x^{2}} \Re{x} + 8 \left(\Re{x} \frac{d}{d x} \Im{x} + \Im{x} \frac{d}{d x} \Re{x}\right) \frac{d}{d x} \Re{x} \frac{d}{d x} \Im{x} + 8 \left(\Re{x} \frac{d^{2}}{d x^{2}} \Im{x} + \Im{x} \frac{d^{2}}{d x^{2}} \Re{x} + 2 \frac{d}{d x} \Re{x} \frac{d}{d x} \Im{x}\right) \Re{x} \frac{d}{d x} \Im{x} + 8 \left(\Re{x} \frac{d^{2}}{d x^{2}} \Im{x} + \Im{x} \frac{d^{2}}{d x^{2}} \Re{x} + 2 \frac{d}{d x} \Re{x} \frac{d}{d x} \Im{x}\right) \Im{x} \frac{d}{d x} \Re{x} + 2 \left(\left(\Re{x}\right)^{2} - \left(\Im{x}\right)^{2} + 1\right) \left(\Re{x} \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) + 4 \left(\Re{x} \frac{d^{3}}{d x^{3}} \Im{x} + \Im{x} \frac{d^{3}}{d x^{3}} \Re{x} + 3 \frac{d}{d x} \Re{x} \frac{d^{2}}{d x^{2}} \Im{x} + 3 \frac{d}{d x} \Im{x} \frac{d^{2}}{d x^{2}} \Re{x}\right) \Re{x} \Im{x}\right)$$