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.
a8体育官网登录(网址:qmh8.com)a8体育官网登录_a8体育官网登录_a8体育官网登录_w3Q23wwOW
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random