2 / 2 \
-1 + z + 2*z*(z - 3) (z - 3)*\z - 1/*sinh(z)
--------------------- - ------------------------
cosh(z) 2
cosh (z)
$$- \frac{\left(z - 3\right) \left(z^{2} - 1\right) \sinh{\left(z \right)}}{\cosh^{2}{\left(z \right)}} + \frac{z^{2} + 2 z \left(z - 3\right) - 1}{\cosh{\left(z \right)}}$$
/ 2 \ / 2 \
/ 2\ | 2*sinh (z)| 2*\-1 + z + 2*z*(-3 + z)/*sinh(z)
-6 + 6*z + \-1 + z /*|-1 + ----------|*(-3 + z) - ----------------------------------
| 2 | cosh(z)
\ cosh (z) /
------------------------------------------------------------------------------------
cosh(z)
$$\frac{6 z + \left(z - 3\right) \left(z^{2} - 1\right) \left(\frac{2 \sinh^{2}{\left(z \right)}}{\cosh^{2}{\left(z \right)}} - 1\right) - \frac{2 \left(z^{2} + 2 z \left(z - 3\right) - 1\right) \sinh{\left(z \right)}}{\cosh{\left(z \right)}} - 6}{\cosh{\left(z \right)}}$$
/ 2 \
/ 2\ | 6*sinh (z)|
\-1 + z /*|-5 + ----------|*(-3 + z)*sinh(z)
/ 2 \ | 2 |
| 2*sinh (z)| / 2 \ 18*(-1 + z)*sinh(z) \ cosh (z) /
6 + 3*|-1 + ----------|*\-1 + z + 2*z*(-3 + z)/ - ------------------- - --------------------------------------------
| 2 | cosh(z) cosh(z)
\ cosh (z) /
---------------------------------------------------------------------------------------------------------------------
cosh(z)
$$\frac{- \frac{\left(z - 3\right) \left(z^{2} - 1\right) \left(\frac{6 \sinh^{2}{\left(z \right)}}{\cosh^{2}{\left(z \right)}} - 5\right) \sinh{\left(z \right)}}{\cosh{\left(z \right)}} - \frac{18 \left(z - 1\right) \sinh{\left(z \right)}}{\cosh{\left(z \right)}} + 3 \left(\frac{2 \sinh^{2}{\left(z \right)}}{\cosh^{2}{\left(z \right)}} - 1\right) \left(z^{2} + 2 z \left(z - 3\right) - 1\right) + 6}{\cosh{\left(z \right)}}$$