Question

Is there a way to integrate arctan^2 (x) wrt x, using a substitution or 'by parts' please?

Answer 1

i would try
\[x = \tan u\]
\[dx = \sec^{2} u du\]
\[\rightarrow \int\limits u^{2} \sec^{2} u\]

Answer 2

wait nevermind...that has no easy answer :{

Answer 3

Do you mean,
\[\int\arctan^2{x} dx\]?

Answer 4

http://www.wolframalpha.com/input/?i=+integral+arctan%28x%29%5E2+dx
so in short , No cannot be done using regular methods

Answer 5

Yes, I think so :).

Answer 6

I did mean that yes. Sorry, my latex skills need development...