I am trying to customize footnote mark in book class. I want it to look like the one below:
The command
\renewcommand{\thefootnote}{(\arabic{footnote})}
works, however the brackets appear in the superscript. Then I edited .sty file by adding
\def\@makefnmark{\hbox{(\@textsuperscript{\normalfont\@thefnmark})}}
but the result is still not what I expected. I need exactly regular brackets around uppercase index. Does anyone know how to get it?


\makeatletterand\makeatother, see here) instead of modifying book.cls. – Circumscribe Nov 26 '18 at 09:10