How to add two footnotes at one position in beamer?

Question

I am using beamer for a presentation and I want to use two footnotes at one place with a comma between them.

In the following there is no comma but the footnotes appear correctly (with pdflatex):

\documentclass{beamer}
\begin{document}
\begin{frame}
  Text\footnotemark[2]\footnotemark[3]

  \footnotetext[1]{Text 1}
  \footnotetext[2]{Text 2}
\end{frame}
\end{document}

If using multiple-footnotes-at-one-point with \usepackage[multiple]{footmisc}, I get the comma, but the footnotes are not shown (it seems that it breaks the beamer footnote configuration footmisc-in-beamer-citations-get-lost)

Does anyone have some suggestion on how to do this?

Welcome to TeX.SX! Please help us help you and add a minimal working example (MWE) that illustrates your problem. Reproducing the problem and finding out what the issue is will be much easier when we see compilable code, starting with \documentclass{...} and ending with \end{document}. — dexteritas, Sep 29 '21 at 11:18
As you noted, footmisc is not working with beamer. As a simple workaround you could add \textsuperscript{,} between the footnotemarks. — dexteritas, Sep 29 '21 at 14:09
Thanks @Werner and @dexteritas! Yes, I am currently using that solution. — RM Ts, Sep 29 '21 at 21:25
@Werner Ok, I have now made it into an answer. I wanted to wait if someone has a maybe a solution that is less workaround. — dexteritas, Sep 30 '21 at 09:13

dexteritas · Accepted Answer · 2021-09-30T12:31:17.087

As you noted, footmisc is not working with beamer.

New Solution: redefine command `\footnotemark`

Another way would be do redefine \footnotemark, using etoolbox's list processing (inspired by this solution). This allows using multiple footnotes as comma separated list as parameter: \footnotemark[1,2].

\documentclass{beamer}
\usepackage{etoolbox}
\usepackage{ifthen}
\let\origfootnotemark\footnotemark
\renewcommand{\footnotemark}[1][]{%
    \ifthenelse{\equal{#1}{}}{%
        \origfootnotemark%
    }{%
        \def\nextitem{\def\nextitem{\textsuperscript{,}}}% Separator
        \renewcommand*{\do}[1]{\nextitem\origfootnotemark[##1]}% How to process each item
        \docsvlist{#1}% Process list
    }%
}
\begin{document}
\begin{frame}
    \begin{itemize}
    \item
        first automatic footnote\footnotemark
    \item
        another automatic footnote\footnotemark
    \item
        first footnote again\footnotemark[1]
    \item
        both footnotes\footnotemark[1,2]
    \end{itemize}
    \footnotetext[1]{Text 1}
    \footnotetext[2]{Text 2}
\end{frame}
\end{document}

Result

Old Solution: Simple workaround

As a simple workaround you could add \textsuperscript{,} between the footnotemarks.

\documentclass{beamer}
\begin{document}
\begin{frame}
  Text\footnotemark[1]\textsuperscript{,}\footnotemark[2]

  \footnotetext[1]{Text 1}
  \footnotetext[2]{Text 2}
\end{frame}
\end{document}

How to add two footnotes at one position in beamer?

1 Answers1

New Solution: redefine command \footnotemark

Result

Old Solution: Simple workaround

Result

New Solution: redefine command `\footnotemark`