/ / 2 \ \
| | 3 4*x 6*x | |
| 2*x*|-1 + ----------------- + ------ + ----------------| / 1 \|
| | / 2\ 2 2 / 2\ | 6*(-1 + p*x)*|x + -------||
| 2 \ \1 + x /*atan (x) 1 + x \1 + x /*atan(x)/ 3*p*(-2 + p*x) \ atan(x)/| -p*x
-|p *(-3 + p*x) + -------------------------------------------------------- + ---------------- + --------------------------|*e
| 2 / 2\ 2 |
| / 2\ \1 + x /*atan(x) / 2\ |
\ \1 + x / *atan(x) \1 + x / *atan(x) /
----------------------------------------------------------------------------------------------------------------------------------
atan(x)