1
------- / 2 \
log(10) | 2 72*x 1 3 18*x 18*x |
27*(atan(3*x)) *|-2 + --------------------- + -------- + ------------------------------ - ----------------------------- + -------------------- - ----------------------------|
| / 2\ 2 2 / 2\ 2 2 / 2\ 2 / 2\ / 2\ |
\ \1 + 9*x /*atan (3*x) 1 + 9*x \1 + 9*x /*atan (3*x)*log (10) \1 + 9*x /*atan (3*x)*log(10) \1 + 9*x /*atan(3*x) \1 + 9*x /*atan(3*x)*log(10)/
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2
/ 2\
\1 + 9*x / *atan(3*x)*log(10)