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.
顶盛APP官网（网址:EDF6.COM）顶盛APP官网_顶盛APP官网_顶盛APP官网_顶盛APP官网_顶盛APP官网顶盛APP官网_顶盛APP官网_顶盛APP官网_Q2jW2jLiH
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
