Fraction bar with Esc-completion

Hello, if I want to write an “lambda” for example, I would do it like this: “Esc” “lambda” “Esc”
Is the same thing possible for a fraction bar oder a square root sign?

Greetings
Peter

On my Mac the combination for the fraction bar is control /

Enter Math Notation

Mathematical Typesetting

Generally speaking, ctrl lets you “pretty print”—so try it with ctrl + /, ctrl + 6, ctrl + _, ctrl + 2…

Hello, thank you very much for your answers.
I will now start working with those shortcuts.

Greetings,
Peter