jordan form [{-2,-4,0,4,1,-1},{0,-2,0,0,-1,1},{-4,4,2,0,-2,2},{0,-4,0,2,1,-1},{0,0,0,0,-2,-2},{0,0,0,0,0,-4}]

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.