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.
(3/2)(5/4)(29/28)(31/32)(37/36)(41/40)
(3/2)(5/4)(29/28)(31/32)(37/36)(41/40)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
