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 r^2 * Sin(p) drdp from r=0 to 2 from p=Pi/4 to 3*Pi/4
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random