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.
亚搏体育连接(网址:EDF6.COM)亚搏体育连接_亚搏体育连接_亚搏体育连接_IbI2c6I6
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random