This usually won't work using the number row above the letters; you must use the 10-key pad on the right. 2. Mac: The Direct Shortcut
On mobile devices, you can access special characters by tapping the ?123 or #+= key on the keyboard. On some devices, you may need to long-press on a key or use a third-party keyboard app to access the √ symbol. square root on keyboard
For heavy math users, this Chrome extension allows you to type or hand-write math that converts instantly into digital format. 4. Chromebooks and Linux Chromebooks use Unicode entry. This usually won't work using the number row