Displaying a piecewise-defined function in Word or Google Docs

A demonstration of how to display a fairly pretty-looking piecewise-defined function in Word or Google Docs. (For the latter, the trick is to do it in Word and snip the image--best way that I know of. Feel free to comment if you know of a better way.)

[@hrithikbhatia364]

amazing trick saved me a lot of time

[@stlo0309]

the trick for google doks is exactly wot i needed lol. tysm!

[@Aziz-qm5tg]

Thank you so much, I was stuck on this for ages.

[@alimelekester5355]

Thank you sooooo much.

[@mijotoba]

what if I need to enter more than 3?

[@DavidOerlemans]

Add another matrix