The first derivative
[src]
2 2*x*atan(x)
atan (x) + -----------
2
1 + x
$$\frac{2 x \operatorname{atan}{\left(x \right)}}{x^{2} + 1} + \operatorname{atan}^{2}{\left(x \right)}$$
The second derivative
[src]
/ x*(-1 + 2*x*atan(x))\
2*|2*atan(x) - --------------------|
| 2 |
\ 1 + x /
------------------------------------
2
1 + x
$$\frac{2 \left(- \frac{x \left(2 x \operatorname{atan}{\left(x \right)} - 1\right)}{x^{2} + 1} + 2 \operatorname{atan}{\left(x \right)}\right)}{x^{2} + 1}$$
The third derivative
[src]
/ / 2 \ \
| | 3*x 4*x *atan(x) | |
-2*|-3 + 2*x*|------ - ------------ + atan(x)| + 6*x*atan(x)|
| | 2 2 | |
\ \1 + x 1 + x / /
-------------------------------------------------------------
2
/ 2\
\1 + x /
$$- \frac{2 \left(2 x \left(- \frac{4 x^{2} \operatorname{atan}{\left(x \right)}}{x^{2} + 1} + \frac{3 x}{x^{2} + 1} + \operatorname{atan}{\left(x \right)}\right) + 6 x \operatorname{atan}{\left(x \right)} - 3\right)}{\left(x^{2} + 1\right)^{2}}$$
/ / 2 \ \
| | 3*x 4*x *atan(x) | |
-2*|-3 + 2*x*|------ - ------------ + atan(x)| + 6*x*atan(x)|
| | 2 2 | |
\ \1 + x 1 + x / /
-------------------------------------------------------------
2
/ 2\
\1 + x /
$$- \frac{2 \left(2 x \left(- \frac{4 x^{2} \operatorname{atan}{\left(x \right)}}{x^{2} + 1} + \frac{3 x}{x^{2} + 1} + \operatorname{atan}{\left(x \right)}\right) + 6 x \operatorname{atan}{\left(x \right)} - 3\right)}{\left(x^{2} + 1\right)^{2}}$$