The first derivative
[src]
-1
----------
/ 2\
| u |
2*|1 + --|
\ 4 /
$$- \frac{1}{2 \left(\frac{u^{2}}{4} + 1\right)}$$
The second derivative
[src]
u
-----------
2
/ 2\
| u |
4*|1 + --|
\ 4 /
$$\frac{u}{4 \left(\frac{u^{2}}{4} + 1\right)^{2}}$$
The third derivative
[src]
/ 2 \
| 4*u |
4*|1 - ------|
| 2|
\ 4 + u /
--------------
2
/ 2\
\4 + u /
$$\frac{4 \left(- \frac{4 u^{2}}{u^{2} + 4} + 1\right)}{\left(u^{2} + 4\right)^{2}}$$