Verbatim math inside tabular or align environment?

Question

Is it be possible to display a table with both typeset math expressions and verbatim renderings the corresponding input for those expressions?

For example, something like the first two lines of output shown below, but within a tabular or align environment. (The last two lines of the output give almost what I want, but of course lack display of /.)

The source for the above is:

\documentclass{article}
\usepackage{amsmath}

\begin{document}

\noindent
$X \vee Y$ \qquad \verb!X \vee Y!
\\
$X \wedge Y$ \qquad \verb!X \wedge Y!

\noindent
\begin{align*}
X \wedge Y &\qquad \texttt{X  wedge Y}
\\
X \vee Y &\qquad \texttt{X vee Y}
\end{align*}

\end{document}

Of course I am aware of how to do this when just text is involved, as considered, e.g., in: How use fancyvrb to show both result and verbatim text?.

A mathemartical aside

Somewhat confusingly, the symbol \vee is used in topology to denote the wedge sum, whereas the symbol \wedge is not (it's used for the smash product).

While you can get verbatim into an align, the easist would probably be to stick with tt text, as in \texttt{X \char92 wedge Y} — Steven B. Segletes, Apr 09 '20 at 19:49
You can do \texttt{X \string\wedge\ Y} and \texttt{X \string\vee\ Y}. — Werner, Apr 09 '20 at 19:49
The problem is that align* absorbs the text up to \end{align*} as the argument to a macro, so \verb is not allowed. — egreg, Apr 09 '20 at 20:00

score 4 · Answer 1 · answered Apr 09 '20 at 19:49

4

You could use a tabular as shown in the following example:

\documentclass{article}
\usepackage{amsmath}
\usepackage{array}
\begin{document}

\begin{tabular}{>{$}l<{$}l}
X \vee Y & \verb!X \vee Y!
\\
X \wedge Y & \verb!X \wedge Y!
\end{tabular}

\end{document}

answered Apr 09 '20 at 19:49

leandriis

62,593

This way seems a lot simpler than having to use \string. – murray Apr 09 '20 at 19:59

score 3 · Accepted Answer · answered Apr 09 '20 at 20:05

3

You can write some code to format both input and output at the same time:

\documentclass{article}

\usepackage{amsmath}

\makeatletter
\newcommand{\mathandcode}[1]{%
  \mbox{$#1$} &
    \mbox{\ttfamily \detokenize{#1}}% https://tex.stackexchange.com/a/139980/5764
}

\begin{document}

\begin{tabular}{ l l }
  \mathandcode{X \vee Y} \\
  \mathandcode{X \wedge Y}
\end{tabular}

\end{document}

answered Apr 09 '20 at 20:05

Werner

603,163

Perhaps the simplest yet! – murray Apr 11 '20 at 20:20

Verbatim math inside tabular or align environment?

2 Answers2