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.
涂山娱乐（网址:EDF6.COM）涂山娱乐_涂山娱乐_涂山娱乐_涂山娱乐_涂山娱乐涂山娱乐_涂山娱乐_涂山娱乐_RxYYRR5xh
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
