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.
熊猫app（网址:EDF6.COM）熊猫app_熊猫app_熊猫app_熊猫app_熊猫app熊猫app_熊猫app_熊猫app_m2m2yL2y
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
