I want to use Alphabetic counter or Romanic counter, when I write Section or use theorem.
But in my tex studio, which is name of created tex program, that commands as \alph, \Alph and \roman are not activated.
So, Should I use new user pakage??
How can I solve this problem??
Please, help me.
\renewcommand\thefigure{\alph{figure}}, etc. You should provide more information, what you like to have. BTW, this is no mater of your TeXstudio but code of your document – Zarko Oct 26 '21 at 06:09