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.
博鱼电子竞技|博鱼电子竞技网站（网址:qmh8.com）博鱼电子竞技|博鱼电子竞技网站_博鱼电子竞技|博鱼电子竞技网站_博鱼电子竞技|博鱼电子竞技网站_EEX1EXRX0
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
