Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
int_0^1 1000000000 (1/4 - (1/pi^2) (arctan(10000000000 x)))^2 dx
int_0^1 1000000000 (1/4 - (1/pi^2) (arctan(10000000000 x)))^2 dx
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
