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.
eigenvalues (1/2)*{{-1,-1,sqrt(2)},{1/2,1/2,sqrt(2)},{sqrt(2),-sqrt(2),0}}
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random