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.
im体育网上娱乐（网址:EDF6.COM）im体育网上娱乐_im体育网上娱乐_im体育网上娱乐_im体育网上娱乐_im体育网上娱乐im体育网上娱乐_im体育网上娱乐_im体育网上娱乐_8fh2Mdf
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
