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.
智博在线(网址:qmh8.com)智博在线_智博在线_智博在线_智博在线_智博在线智博在线_智博在线_智博在线_EADtID1DC
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random