Defining a macro for showing math formula source

Question

I would like to typeset an introduction to MathJAX/LaTeX formulae.

For that, I introduced a macro:

\newcommand{\showsource}[1]{$#1$ : \verb|#1|}

To typeset a math formula and then show its source.

But when I use it as

\showsource{\frac{1}{2}}

XeLaTeX complains about a missing $.

How can I write such a macro correctly?

Edit (MWE -- Manuel Kuehner)

\documentclass{article}

\newcommand{\showsourceA}[1]{$#1$}
\newcommand{\showsourceB}[1]{verb|#1|}

\begin{document}
\showsourceA{\frac{1}{2}}
\showsourceB{\frac{1}{2}}
\end{document}

Perhaps this question will help: http://tex.stackexchange.com/questions/128399/print-small-tex-code-verbatim-and-render-it — Steven B. Segletes, Mar 24 '17 at 15:26
I added a MWE -- as you can see, \showsourceA works and \showsourceB (including the verb) doesn't. — Dr. Manuel Kuehner, Mar 24 '17 at 15:27

score 1 · Answer 1 · edited Apr 13 '17 at 12:34

1

Followin Steven B. Segletes' comment and his link:

Print small TeX code verbatim and render it

I created a new, working macro:

\newcommand{\showsource}[1]{$#1$ \quad {\ttfamily\detokenize{#1}} }

and it works on

\showsource{\frac{1}{2}}

(yes, the space after \frac is strange but I can live with it).

edited Apr 13 '17 at 12:34

Community

1

answered Mar 24 '17 at 15:39

Gergely

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Defining a macro for showing math formula source

Edit (MWE -- Manuel Kuehner)

1 Answers1