A sequence of lines of text can be incorporated unaltered
into a LaTeX document (in a fixed-width `typewriter' font)
using the verbatim environment. The lines should
be enclosed between \begin{verbatim} and
\end{verbatim}. This provides a useful way of
listing all or part of a computer program.
The control sequence \verb can be used to incorporate
a string of characters unaltered into a paragraph of text
(in a `typewriter' font). The string of characters should be
enclosed between two instances of some character that is not
included in the string. The whole should then be preceded by
the control sequence \verb. For example,
\verb/\alpha/ produces \alpha.