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.
x * {{-1}, {1}} + y * {{0.5}, {1}} = {{0}, {0}}
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random