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.
pi * integral from -14.5 to 14.5 of (-0.041x^2+8.6)^2 dx
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random