/ / 2/ ___\\ 2/ ___\ / ___\\
/ 2/ ___\\ | 3 2*\-1 + tanh \\/ x // 4*tanh \\/ x / 6*tanh\\/ x /|
-\-1 + tanh \\/ x //*|---- + --------------------- + -------------- + -------------|
| 5/2 3/2 3/2 2 |
\x x x x /
-------------------------------------------------------------------------------------
8
$$- \frac{1}{8} \left(\tanh^{2}{\left (\sqrt{x} \right )} - 1\right) \left(\frac{6}{x^{2}} \tanh{\left (\sqrt{x} \right )} + \frac{1}{x^{\frac{3}{2}}} \left(2 \tanh^{2}{\left (\sqrt{x} \right )} - 2\right) + \frac{4}{x^{\frac{3}{2}}} \tanh^{2}{\left (\sqrt{x} \right )} + \frac{3}{x^{\frac{5}{2}}}\right)$$