how to write powers in texttt

Question

I'm trying to write

\texttt{gap> M:=Group(r*u^2*d^-1*b*d^-1);}

exactly this way. But latex return an error because of the powers.

How can I fix this?

Answer 1

\documentclass{article}
\begin{document}
\texttt{gap> M:=Group(ru\^{}2d\^{}-1bd\^{}-1);}

{\ttfamily gap> M:=Group(ru\^{}2d\^{}-1bd\^{}-1);}

\verb|gap> M:=Group(ru^2d^-1bd^-1);|
\end{document}

Answer 2

I believe you are trying to do verbatim text. Therefore, I would suggest using the \verb command.

\documentclass[preview, border=.2cm]{standalone}
\usepackage[utf8]{inputenc}
\begin{document}
Lorem \verb|gap> M:=Group(ru^2d^-1bd^-1);| ipsum
\end{document}

Output: