/ 2*x \ / __________\
| 1 x*e | | / 2*x | x
|------------- - -------------|*atan\\/ E - 1 / + ---------------------------
| __________ 3/2| __________ __________
| / 2*x / 2*x \ | / 2*x / 2*x
\\/ E - 1 \E - 1/ / \/ E - 1 *\/ E - 1
$$\frac{x}{\sqrt{e^{2 x} - 1} \sqrt{e^{2 x} - 1}} + \left(- \frac{x e^{2 x}}{\left(e^{2 x} - 1\right)^{\frac{3}{2}}} + \frac{1}{\sqrt{e^{2 x} - 1}}\right) \operatorname{atan}{\left(\sqrt{e^{2 x} - 1} \right)}$$
/ / 2*x \ / / 2*x \\ / ___________\ \
| | x*e | | | 3*e || | / 2*x | 2*x|
|2*|-1 + ---------| |2 + x*|2 - ---------||*atan\\/ -1 + e /*e |
| | 2*x| 2*x | | 2*x|| |
| \ -1 + e / x*e \ \ -1 + e // |
-|------------------ + ------------ + -------------------------------------------------|
| 2*x 2 3/2 |
| -1 + e / 2*x\ / 2*x\ |
\ \-1 + e / \-1 + e / /
$$- (\frac{x e^{2 x}}{\left(e^{2 x} - 1\right)^{2}} + \frac{\left(x \left(2 - \frac{3 e^{2 x}}{e^{2 x} - 1}\right) + 2\right) e^{2 x} \operatorname{atan}{\left(\sqrt{e^{2 x} - 1} \right)}}{\left(e^{2 x} - 1\right)^{\frac{3}{2}}} + \frac{2 \left(\frac{x e^{2 x}}{e^{2 x} - 1} - 1\right)}{e^{2 x} - 1})$$
/ / / 2*x 4*x \ 2*x \ / ___________\\
| / / 2*x \\ / 2*x \ / 2*x \ | | 18*e 15*e | 9*e | | / 2*x ||
| | | 3*e || | x*e | | 3*e | |6 + x*|4 - --------- + ------------| - ---------|*atan\\/ -1 + e /|
| 3*|2 + x*|2 - ---------|| 3*|-1 + ---------| x*|2 - ---------| | | 2*x 2| 2*x| |
| | | 2*x|| | 2*x| | 2*x| | | -1 + e / 2*x\ | -1 + e | |
| \ \ -1 + e // \ -1 + e / \ -1 + e / \ \ \-1 + e / / / | 2*x
|- ------------------------- + ------------------ - ----------------- - -----------------------------------------------------------------------|*e
| 2 2 2 3/2 |
| / 2*x\ / 2*x\ / 2*x\ / 2*x\ |
\ \-1 + e / \-1 + e / \-1 + e / \-1 + e / /
$$\left(- \frac{x \left(2 - \frac{3 e^{2 x}}{e^{2 x} - 1}\right)}{\left(e^{2 x} - 1\right)^{2}} - \frac{3 \left(x \left(2 - \frac{3 e^{2 x}}{e^{2 x} - 1}\right) + 2\right)}{\left(e^{2 x} - 1\right)^{2}} + \frac{3 \left(\frac{x e^{2 x}}{e^{2 x} - 1} - 1\right)}{\left(e^{2 x} - 1\right)^{2}} - \frac{\left(x \left(4 - \frac{18 e^{2 x}}{e^{2 x} - 1} + \frac{15 e^{4 x}}{\left(e^{2 x} - 1\right)^{2}}\right) + 6 - \frac{9 e^{2 x}}{e^{2 x} - 1}\right) \operatorname{atan}{\left(\sqrt{e^{2 x} - 1} \right)}}{\left(e^{2 x} - 1\right)^{\frac{3}{2}}}\right) e^{2 x}$$