For more complex symbols, you can use the built-in Apple Support guide for special characters :
Tip: You can also access this menu by going to > Emoji & Symbols in most application menu bars. 3. Inserting in Specific Productivity Apps square root symbol on macbook
Different applications offer advanced ways to insert mathematical symbols for formal equations. How to Type Square Root on Mac (Keyboard Shortcut & Tips) For more complex symbols, you can use the