The common way in Latex to have super- subscript is to use ^ and _ in math mode.
^ = superscript , _ = subscript , what key go back to normal ?
i tried math_failure (math_unknown_error):
also can't do it
i know now % % store the value in the variable
what key go back to normal ;D
i look for the answer in the net for a long time still can't find any good tips?
chance to help . thanks!