The first derivative
[src]
-sinh(x)
---------
2
cosh (x)
$$- \frac{\sinh{\left(x \right)}}{\cosh^{2}{\left(x \right)}}$$
The second derivative
[src]
2
2*sinh (x)
-1 + ----------
2
cosh (x)
---------------
cosh(x)
$$\frac{\frac{2 \sinh^{2}{\left(x \right)}}{\cosh^{2}{\left(x \right)}} - 1}{\cosh{\left(x \right)}}$$
The third derivative
[src]
/ 2 \
| 6*sinh (x)|
|5 - ----------|*sinh(x)
| 2 |
\ cosh (x) /
------------------------
2
cosh (x)
$$\frac{\left(- \frac{6 \sinh^{2}{\left(x \right)}}{\cosh^{2}{\left(x \right)}} + 5\right) \sinh{\left(x \right)}}{\cosh^{2}{\left(x \right)}}$$