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.
simplify {{1, 2, 3}, {1, 2, 3}} * {{2, 2, 2}, {3, 3, 3}, {4, 4, 4}}
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random