/ 2\ 2 2 2
log\1 + x / atan (x) x *atan (x)
----------- - -------- + ----------- - (x - atan(x))*atan(x)
2 2 2 $$\frac{x^{2}}{2} \operatorname{atan}^{2}{\left (x \right )} - \left(x - \operatorname{atan}{\left (x \right )}\right) \operatorname{atan}{\left (x \right )} + \frac{1}{2} \log{\left (x^{2} + 1 \right )} - \frac{1}{2} \operatorname{atan}^{2}{\left (x \right )}$$
0.5*log(x^2 + 1) - 0.5*atan(x)^2 - (x - atan(x))*atan(x) + 0.5*x^2*atan(x)^2
Рациональный знаменатель
[src] 2 2 2 / 2\
atan (x) + x *atan (x) - 2*x*atan(x) + log\1 + x /
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2 $$\frac{1}{2} \left(x^{2} \operatorname{atan}^{2}{\left (x \right )} - 2 x \operatorname{atan}{\left (x \right )} + \log{\left (x^{2} + 1 \right )} + \operatorname{atan}^{2}{\left (x \right )}\right)$$
Объединение рациональных выражений
[src] 2 2 2 / 2\
- atan (x) + x *atan (x) - 2*(x - atan(x))*atan(x) + log\1 + x /
----------------------------------------------------------------
2 $$\frac{1}{2} \left(x^{2} \operatorname{atan}^{2}{\left (x \right )} - 2 \left(x - \operatorname{atan}{\left (x \right )}\right) \operatorname{atan}{\left (x \right )} + \log{\left (x^{2} + 1 \right )} - \operatorname{atan}^{2}{\left (x \right )}\right)$$
2 / 2\ 2 2
atan (x) log\1 + x / x *atan (x)
-------- + ----------- + ----------- - x*atan(x)
2 2 2
$$\frac{x^{2}}{2} \operatorname{atan}^{2}{\left (x \right )} - x \operatorname{atan}{\left (x \right )} + \frac{1}{2} \log{\left (x^{2} + 1 \right )} + \frac{1}{2} \operatorname{atan}^{2}{\left (x \right )}$$
/ 2\ 2 / 2\
log\1 + x / atan (x)*\1 + x /
----------- + ----------------- - x*atan(x)
2 2 $$- x \operatorname{atan}{\left (x \right )} + \frac{1}{2} \left(x^{2} + 1\right) \operatorname{atan}^{2}{\left (x \right )} + \frac{1}{2} \log{\left (x^{2} + 1 \right )}$$
2 2 / 2 \ 2
x *atan (x) log\x + 1/ - atan (x)
----------- + ---------------------- - (x - atan(x))*atan(x)
2 2 $$\frac{x^{2}}{2} \operatorname{atan}^{2}{\left (x \right )} - \left(x - \operatorname{atan}{\left (x \right )}\right) \operatorname{atan}{\left (x \right )} + \frac{1}{2} \left(\log{\left (x^{2} + 1 \right )} - \operatorname{atan}^{2}{\left (x \right )}\right)$$
2 2 2 / 2\
atan (x) + x *atan (x) - 2*x*atan(x) + log\1 + x /
--------------------------------------------------
2 $$\frac{1}{2} \left(x^{2} \operatorname{atan}^{2}{\left (x \right )} - 2 x \operatorname{atan}{\left (x \right )} + \log{\left (x^{2} + 1 \right )} + \operatorname{atan}^{2}{\left (x \right )}\right)$$
2 / 2\ 2 2
atan (x) log\1 + x / x *atan (x)
-------- + ----------- + ----------- - x*atan(x)
2 2 2
$$\frac{x^{2}}{2} \operatorname{atan}^{2}{\left (x \right )} - x \operatorname{atan}{\left (x \right )} + \frac{1}{2} \log{\left (x^{2} + 1 \right )} + \frac{1}{2} \operatorname{atan}^{2}{\left (x \right )}$$
/ 2\ 2 2 2
log\1 + x / atan (x) x *atan (x)
----------- - -------- + (-x + atan(x))*atan(x) + -----------
2 2 2 $$\frac{x^{2}}{2} \operatorname{atan}^{2}{\left (x \right )} + \left(- x + \operatorname{atan}{\left (x \right )}\right) \operatorname{atan}{\left (x \right )} + \frac{1}{2} \log{\left (x^{2} + 1 \right )} - \frac{1}{2} \operatorname{atan}^{2}{\left (x \right )}$$