/ / 2 \ / 2 \ \ -x
\(-2 + x)*tanh(x) + 2*(-1 + x)*\-1 + tanh (x)/ + 2*x*\-1 + tanh (x)/*tanh(x)/*e
$$\left(2 x \left(\tanh^{2}{\left(x \right)} - 1\right) \tanh{\left(x \right)} + \left(x - 2\right) \tanh{\left(x \right)} + 2 \left(x - 1\right) \left(\tanh^{2}{\left(x \right)} - 1\right)\right) e^{- x}$$
/ / 2 \ / 2 \ / 2 \ / 2 \ \ -x
-\(-3 + x)*tanh(x) + 3*\-1 + tanh (x)/*(-2 + x) + 2*x*\-1 + tanh (x)/*\-1 + 3*tanh (x)/ + 6*(-1 + x)*\-1 + tanh (x)/*tanh(x)/*e
$$- \left(2 x \left(\tanh^{2}{\left(x \right)} - 1\right) \left(3 \tanh^{2}{\left(x \right)} - 1\right) + \left(x - 3\right) \tanh{\left(x \right)} + 3 \left(x - 2\right) \left(\tanh^{2}{\left(x \right)} - 1\right) + 6 \left(x - 1\right) \left(\tanh^{2}{\left(x \right)} - 1\right) \tanh{\left(x \right)}\right) e^{- x}$$