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 {{0,1,1,1},{1,5,-1,6},{-1,-4,0,-4},{-1,-1,1,-2}}
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random