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.
THE LETTER A ROTATED 90 DEGREES CLOCKWISE TO LOOK LIKE THE GREATER THAN SYMBOL (I.E., ))
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random