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.
sum[ ((2*i - 1)*b/(200))^3 * b/100 ] with i from 1 to 100
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random