2
1 - tanh (log(x))
-----------------
x
$$\frac{1}{x} \left(- \tanh^{2}{\left (\log{\left (x \right )} \right )} + 1\right)$$
/ 2 \
(1 + 2*tanh(log(x)))*\-1 + tanh (log(x))/
-----------------------------------------
2
x
$$\frac{1}{x^{2}} \left(2 \tanh{\left (\log{\left (x \right )} \right )} + 1\right) \left(\tanh^{2}{\left (\log{\left (x \right )} \right )} - 1\right)$$
/ 2 \ / 2 \
-2*\-1 + tanh (log(x))/*\3*tanh (log(x)) + 3*tanh(log(x))/
----------------------------------------------------------
3
x
$$- \frac{2}{x^{3}} \left(\tanh^{2}{\left (\log{\left (x \right )} \right )} - 1\right) \left(3 \tanh^{2}{\left (\log{\left (x \right )} \right )} + 3 \tanh{\left (\log{\left (x \right )} \right )}\right)$$