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.
{{2, 1, 1, 1}, {3/2, 2, 1, 3/2}, {3/2, 1, 2, 3/2}, {1, 1, 1, 2}}.{{1/3,0},{0,0},{0,0},{0,1/3}}
{{2, 1, 1, 1}, {3/2, 2, 1, 3/2}, {3/2, 1, 2, 3/2}, {1, 1, 1, 2}}.{{1/3,0},{0,0},{0,0},{0,1/3}}
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random