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.
Inverse[SetPrecision[{{0.400, 0.4000, 0.2000},{2.2275, - 2.4255, 0.1980},{0.4028, 0.1786, - 0.5814}}, 15]]
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random