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%5B100*x%5Ek%2C %7Bk%2C 0%2C 9%7D%5D %3D 30 * 1000
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
