% Document type: LaTeX
% CHOOSE EXACTLY ONE DOCUMENTSTYLE LINE
%\documentstyle{letter}    % Plain letters - no letterhead
%\documentstyle[wiscmath]{letter} % Device indep Math letterhead
%\documentstyle[wiscmath,times]{letter} % Printer needs Times PS fonts
\documentclass[12pt]{letter} % Needs Latex2e, dvips, Ghostscript
%

\usepackage{YNmath,epsfig}
%\usepackage{Wtutor,epsfig}
%% My Return address
\address{
1600 Pennsylvania Ave.\\
Madison, Wisconsin 53704}
\def\loginname{student@math.wisc.edu}
\def\telephonenum{(608)555-1212}
%% END of My Return address

%% My Signature
\name{Joe Student}
\title{Perpetual Student}
\signature{Joe Q. Student}
%% END of My Signature

\pagestyle{plain} %For multipage letters with no headings

\begin{document}
\begin{letter}{Dr. Joe Professor \\
               Chair \\
               Mathematics Department \\
               Anywhere University \\
               1 North Pole Circle \\
               City, State 12345-6789}

\opening{Dear Dr. Professor,}

This is a copy of the University of Wisconsin letterhead, typeset in \LaTeX.
To use it you must have the following three files
\begin{itemize}
        \item YNmath.sty
        \item YNsamp.tex (this sample letter)
	\item W.eps
\end{itemize}
{\bf YNsamp.tex} is a sample letter---in fact it was used to create this
letter.  Just edit it to change the appropriate inputs and then compile
and print it as follows:
\begin{itemize}
        \item latex YNsamp---this creates sampwisc.dvi
        \item dvips YNsamp---this converts the file to postscript format.
        It can then be printed on the laser printer using {\bf lpr YNsamp.ps}
\end{itemize}

The most beautiful equation:

\begin{equation}
	\exp^{i\pi} + 1 = 0
\end{equation}
\closing{Sincerely,}

\endletter
\end{letter}
\end{document}