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.
9u游戏网(永久链接:SE8.TV)9u游戏网_9u游戏网_9u游戏网_16616ZZZ
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random