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.
新宝官方（网址:QY81.COM）新宝官方_新宝官方_新宝官方_新宝官方_新宝官方新宝官方_新宝官方_新宝官方_U22R2qyqU
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
