%% 
%% This is file `letter.cls', generated 
%% on <1994/1/30> with the docstrip utility (2.2c).
%% 
%% The original source files were:
%% 
%% letter.dtx  (with options: `letter')
%% 
%% Copyright (C) 1993 by LaTeX3 project. All rights reserved. 
%% For additional copyright information see further down in this file. 
%% 
%% This file is part of the LaTeX2e system (PRELIMINARY TEST RELEASE) 
%% ------------------------------------------------------------------ 
%% 
%% This system is distributed in the hope that it will be useful, 
%% but WITHOUT ANY WARRANTY; without even the implied warranty of 
%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
%% 
%% 
%% IMPORTANT NOTICE: 
%% 
%% For error reports in case of UNCHANGED versions see readme files. 
%% 
%% Please do not request updates from us directly. Distribution is 
%% done through Mail-Servers and TeX organizations. 
%% 
%% You are not allowed to change this file. 
%% 
%% You are allowed to distribute this file under the condition that 
%% it is distributed together with all files mentioned in 00readme.l2e. 
%% 
%% If you receive only some of these files from someone, complain! 
%% 
%% You are NOT ALLOWED to distribute this file alone. You are NOT 
%% ALLOWED to take money for the distribution or use of either this 
%% file or a changed version, except for a nominal charge for copying 
%% etc. 
\NeedsTeXFormat{LaTeX2e}
\def\filedate{1993/12/20}
\def\docdate{1993/12/18}
\def\fileversion{1.1b}
\def\filename{letter.dtx}
\ProvidesClass{letter}[\filedate\space Standard LaTeX2e document class]
\typeout{Standard Document Class `letter' <\filedate>.}
\newcommand\@ptsize{}
\DeclareOption{a4paper}
   {\setlength\paperheight {297mm}%
    \setlength\paperwidth  {210mm}}
\DeclareOption{a5paper}
   {\setlength\paperheight {210mm}%
    \setlength\paperwidth  {148mm}}
\DeclareOption{b5paper}
   {\setlength\paperheight {250mm}%
    \setlength\paperwidth  {176mm}}
\DeclareOption{letterpaper}
   {\setlength\paperheight {11in}%
    \setlength\paperwidth  {8.5in}}
\DeclareOption{legalpaper}
   {\setlength\paperheight {14in}%
    \setlength\paperwidth  {8.5in}}
\DeclareOption{executivepaper}
   {\setlength\paperheight {10.5in}%
    \setlength\paperwidth  {7.25in}}
\DeclareOption{10pt}{\renewcommand\@ptsize{0}}
\DeclareOption{11pt}{\renewcommand\@ptsize{1}}
\DeclareOption{12pt}{\renewcommand\@ptsize{2}}
\DeclareOption{twoside}{\@latexerr{No 'twoside' layout for letters}%
                                   \@eha}
\@twosidefalse
\DeclareOption{draft}{\setlength\overfullrule{5pt}}
\DeclareOption{final}{\setlength\overfullrule{0pt}}
\DeclareOption{onecolumn}{\@twocolumnfalse}
\DeclareOption{twocolumn}{\@twocolumntrue}
\DeclareOption{leqno}{%
  \def\@eqnnum{\hbox to .01\p@{}\rlap{\reset@font\rmfamily
        \hskip -\displaywidth(\theequation)}}}
\DeclareOption{fleqn}{%
  \renewcommand{\[}{\relax
                   \ifmmode\@badmath
                   \else
                     \begin{trivlist}%
                       \@beginparpenalty\predisplaypenalty
                       \@endparpenalty\postdisplaypenalty
                       \item[]\leavevmode
                       \hbox to\linewidth\bgroup $\m@th\displaystyle %$
                         \hskip\mathindent\bgroup
                   \fi}
  \renewcommand{\]}{\relax
                   \ifmmode
                         \egroup $\hfil% $
                       \egroup
                     \end{trivlist}%
                   \else \@badmath
                   \fi}
  \renewenvironment{equation}%
      {\@beginparpenalty\predisplaypenalty
       \@endparpenalty\postdisplaypenalty
       \refstepcounter{equation}%
       \trivlist \item[]\leavevmode
         \hbox to\linewidth\bgroup $\m@th% $
           \displaystyle
           \hskip\mathindent}%
          {$\hfil % $
           \displaywidth\linewidth\hbox{\@eqnnum}%
         \egroup
       \endtrivlist}
  \renewenvironment{eqnarray}%
      {\stepcounter{equation}%
       \let\@currentlabel=\theequation
       \global\@eqnswtrue
       \global\@eqcnt\z@
       \tabskip\mathindente
       \let\\=\@eqncr
       \setlength\abovedisplayskip{\topsep}%
       \ifvmode
         \addtolength\abovedisplayskip{\partopsep}%
       \fi
       \setlength\belowdisplayskip{\abovedisplayskip}%
       \setlength\belowdisplayshortskip{\abovedisplayskip}%
       \setlength\abovedisplayshortskip{\abovedisplayskip}%
       $$\everycr{}\m@th\halign to\linewidth% $$
         \bgroup
           \@eqnsel
           \hskip\@centering
           $\displaystyle\tabskip\z@{####}$&%
           \global\@eqcnt\@ne\hskip2\arraycolsep\hfil${####}$\hfil&%
           \global\@eqcnt\tw@\hskip2\arraycolsep$\displaystyle{####}$%
               \hfil
               \tabskip\@centering&%
           \llap{####}\tabskip\z@\cr}%
      {\@@eqncr
         \egroup
       \global\advance\c@equation\m@ne$$% $$
       \global\@ignoretrue
      }
  \newdimen\mathindent
  \mathindent = \leftmargini
  }
\ExecuteOptions{letterpaper,10pt,onecolumn,final}
\ProcessOptions
\input{size1\@ptsize.clo}
\setlength\lineskip{1\p@}
\setlength\normallineskip{1\p@}
\renewcommand\baselinestretch{}
\setlength\parskip{0.7em}
\setlength\parindent{0\p@}
\@lowpenalty   51
\@medpenalty  151
\@highpenalty 301
\setlength\headheight{12\p@}
\setlength\headsep   {45\p@}
\setlength\footskip{25\p@}
\setlength\textwidth{365\p@}
\setlength\textheight{505\p@}
\setlength\oddsidemargin   {53\p@}
\setlength\evensidemargin  {53\p@}
\setlength\marginparwidth  {90\p@}
\setlength\marginparsep {11\p@}
\setlength\marginparpush{5\p@}
\setlength\topmargin{27pt}
\setlength\footnotesep{12\p@}
\setlength{\skip\footins}{10\p@ \@plus 2\p@ \@minus 4\p@}
\def\@texttop{\ifnum\c@page=1\vskip \z@ plus.00006fil\relax\fi}
\def\ps@headings{%
      \let\@oddfoot\@empty
      \def\@oddhead{\slshape\headtoname{} \ignorespaces\toname
                    \hfil \@date
                    \hfil \pagename{} \thepage}}
\def\ps@empty{%
      \let\@oddfoot\@empty\let\@oddhead\@empty}
\def\ps@firstpage{%
     \let\@oddhead\@empty
     \def\@oddfoot{\raisebox{-45\p@}[\z@]{%
        \hbox to\textwidth{\hspace*{100\p@}%
          \ifcase \@ptsize\relax
             \normalsize
          \or
             \small
          \or
             \footnotesize
          \fi
        \fromlocation \hfill \telephonenum}}\hss}}
\def\ps@plain{%
      \let\@oddhead\@empty
      \def\@oddfoot{\rmfamily\hfil\thepage\hfil}}
\def\name#1{\def\fromname{#1}}
\def\fromname{}
\def\signature#1{\def\fromsig{#1}}
\def\fromsig{}
\long\def\address#1{\def\fromaddress{#1}}
\def\fromaddress{}
\def\location#1{\def\fromlocation{#1}}
\def\fromlocation{}
\def\telephone#1{\def\telephonenum{#1}}
\def\telephonenum{}
\def\makelabels{\@fileswtrue}
\long\def\letter#1{\newpage
  \c@page\@ne
  \interlinepenalty=200 % smaller than the TeXbook value
  \@processto{\leavevmode\ignorespaces #1}}
\def\endletter{\stopletter\@@par\pagebreak\@@par
  \if@filesw
    \begingroup
      \let\\=\relax
      \def\protect##1{\string##1\space}%
        \immediate\write\@auxout{\string\mlabel{\returnaddress}{\toname
           \\\toaddress}}%
    \endgroup
  \fi}
\long\def\@processto#1{\@xproc #1\\@@@\ifx\toaddress\@empty
    \else \@yproc #1@@@\fi}
\long\def\@xproc #1\\#2@@@{\def\toname{#1}\def\toaddress{#2}}
\long\def\@yproc #1\\#2@@@{\def\toaddress{#2}}
\def\stopbreaks{\interlinepenalty \@M
   \def\par{\@@par\nobreak}\let\\=\@nobreakcr
   \let\vspace\@nobreakvspace}
\def\@nobreakvspace{\@ifstar{\@nobreakvspacex}{\@nobreakvspacex}}

\def\@nobreakvspacex#1{\ifvmode\nobreak\vskip #1\relax\else
               \@bsphack\vadjust{\nobreak\vskip #1}\@esphack\fi}

\def\@nobreakcr{\vadjust{\penalty\@M}\@ifstar{\@xnewline}{\@xnewline}}
\def\startbreaks{\let\\=\@normalcr
   \interlinepenalty 200\def\par{\@@par\penalty 200\relax}}

\newdimen\longindentation
\longindentation=.5\textwidth
\newdimen\indentedwidth
\indentedwidth=\textwidth
\advance\indentedwidth -\longindentation
\def\opening#1{\ifx\@empty\fromaddress
  \thispagestyle{firstpage}%
    {\raggedleft\@date\par}%
  \else  % home address
    \thispagestyle{empty}%
    {\raggedleft\begin{tabular}{l}\ignorespaces
      \fromaddress \\*[2\parskip]%
      \@date \end{tabular}\par}%
  \fi
  \vspace{2\parskip}%
  {\raggedright \toname \\ \toaddress \par}%
  \vspace{2\parskip}%
  #1\par\nobreak}
\long\def\closing#1{\par\nobreak\vspace{\parskip}%
  \stopbreaks
  \noindent
  \ifx\@empty\fromaddress\else
  \hspace*{\longindentation}\fi
  \parbox{\indentedwidth}{\raggedright
       \ignorespaces #1\\[6\medskipamount]%
       \ifx\@empty\fromsig
           \fromname
       \else \fromsig \fi\strut}%
   \par}
\medskipamount=\parskip
\def\cc#1{\par\noindent
\parbox[t]{\textwidth}{\@hangfrom{\reset@font\rm \ccname: }%
                       \ignorespaces #1\strut}\par}
\def\encl#1{\par\noindent
\parbox[t]{\textwidth}{\@hangfrom{\reset@font\rm \enclname: }%
                       \ignorespaces #1\strut}\par}
\def\ps{\par\startbreaks}
\def\stopletter{}
\def\returnaddress{}
\newcount\labelcount
\def\startlabels{\labelcount\z@
\pagestyle{empty}%
\let\@texttop\relax
\topmargin -50\p@
\headsep \z@
\oddsidemargin -35\p@
\evensidemargin -35\p@
\textheight 10in
\@colht\textheight  \@colroom\textheight \vsize\textheight
\textwidth 550\p@
\columnsep 25\p@
\ifcase \@ptsize\relax
  \normalsize
 \or
  \small
 \or
  \footnotesize
 \fi
\baselineskip \z@
\lineskip \z@
\boxmaxdepth \z@
\parindent \z@
\twocolumn\relax}
\def\mlabel#1#2{\setbox0\vbox{\parbox[b]{3.6in}%
                                        {\strut\ignorespaces #2}}%
         \vbox to 2in{\vss \box0 \vss}}
\AtBeginDocument{%
  \if@filesw\immediate\write\@mainaux{\string\startlabels}\fi}
\AtEndDocument{%
  \if@filesw\immediate\write\@mainaux{\string\clearpage}\fi}
\setlength\leftmargini  {2.5em}
\setlength\leftmarginii  {2.2em}
\setlength\leftmarginiii {1.87em}
\setlength\leftmarginiv  {1.7em}
\setlength\leftmarginv  {1em}
\setlength\leftmarginvi {1em}
\setlength\leftmargin    {\leftmargini}
\setlength  \labelsep  {5\p@}
\setlength  \labelwidth{\leftmargini}
\addtolength\labelwidth{-\labelsep}
\setlength\partopsep{0\p@}
\@beginparpenalty -\@lowpenalty
\@endparpenalty   -\@lowpenalty
\@itempenalty     -\@lowpenalty
\def\@listI{\setlength\leftmargin{\leftmargini}
            \setlength\parsep {0\p@}%
            \setlength\topsep {.4em}%
            \setlength\itemsep{.4em}}
\let\@listi\@listI
\@listi
\def\@listii {\setlength  \leftmargin{\leftmarginii}%
              \setlength  \labelwidth{\leftmarginii}%
              \addtolength\labelwidth{-\labelsep}}
\def\@listiii{\setlength  \leftmargin{\leftmarginiii}%
              \setlength  \labelwidth{\leftmarginiii}%
              \addtolength\labelwidth{-\labelsep}%
              \setlength  \topsep    {.2em}%
              \setlength  \itemsep   {\topsep}}
\def\@listiv {\setlength  \leftmargin{\leftmarginiv}%
              \setlength  \labelwidth{\leftmarginiv}%
              \addtolength\labelwidth{-\labelsep}}
\def\@listv  {\setlength  \leftmargin{\leftmarginv}%
              \setlength  \labelwidth{\leftmarginv}%
              \addtolength\labelwidth{-\labelsep}}
\def\@listvi {\setlength  \leftmargin{\leftmarginvi}%
              \setlength  \labelwidth{\leftmarginvi}%
              \addtolength\labelwidth{-\labelsep}}
\renewcommand\theenumi{\arabic{enumi}}
\renewcommand\theenumii{\alph{enumii}}
\renewcommand\theenumiii{\roman{enumiii}}
\renewcommand\theenumiv{\Alph{enumiv}}
\newcommand\labelenumi{\theenumi.}
\newcommand\labelenumii{(\theenumii)}
\newcommand\labelenumiii{\theenumiii.}
\newcommand\labelenumiv{\theenumiv.}
\renewcommand\p@enumii{\theenumi}
\renewcommand\p@enumiii{\theenumi(\theenumii)}
\renewcommand\p@enumiv{\p@enumiii\theenumiii}
\newcommand\labelitemi{$\m@th\bullet$}
\newcommand\labelitemii{\bfseries --}
\newcommand\labelitemiiii{$\m@th\ast$}
\newcommand\labelitemiv{$\m@th\cdot$}
\newcommand\descriptionlabel[1]{\hspace\labelsep \bfseries #1}
\newenvironment{description}
               {\list{}{\labelwidth\z@ \itemindent-\leftmargin
                        \let\makelabel\descriptionlabel}}
               {\endlist}

\newenvironment{verse}
               {\let\\=\@centercr
                \list{}{\setlength\itemsep{\z@}%
                        \setlength\itemindent{-15\p@}%
                        \setlength\listparindent{\itemindent}%
                        \setlength\rightmargin{\leftmargin}%
                        \addtolength\leftmargin{15\p@}}%
                \item[]}
               {\endlist}
\newenvironment{quotation}
               {\list{}{\setlength\listparindent{1.5em}%
                        \setlength\itemindent{\listparindent}%
                        \setlength\rightmargin{\leftmargin}}%
                \item[]}
               {\endlist}
\newenvironment{quote}
               {\list{}{\setlength\rightmargin{\leftmargin}}%
                \item[]}
               {\endlist}

\setlength\arraycolsep{5\p@}
\setlength\tabcolsep{6\p@}
\setlength\arrayrulewidth{.4\p@}
\setlength\doublerulesep{2\p@}
\setlength\tabbingsep{\labelsep}
\skip\@mpfootins = \skip\footins
\setlength\fboxsep{3\p@}
\setlength\fboxrule{.4\p@}
\renewcommand\theequation{\arabic{equation}}
\@renewfontswitch{\rm}{\normalfont\rmfamily}{\mathrm}
\@renewfontswitch{\sf}{\normalfont\sffamily}{\mathsf}
\@renewfontswitch{\tt}{\normalfont\ttfamily}{\mathtt}
\@renewfontswitch{\bf}{\normalfont\bfseries}{\mathbf}
\@renewfontswitch{\it}{\normalfont\itshape}{\mathit}
\@renewfontswitch{\sl}{\normalfont\slshape}{\relax}
\@renewfontswitch{\sc}{\normalfont\scshape}{\relax}
\renewcommand{\cal}{\protect\pcal}
\newcommand{\pcal}{\@fontswitch{\relax}{\mathcal}}
\renewcommand{\mit}{\protect\pmit}
\newcommand{\pmit}{\@fontswitch{\relax}{\mathnormal}}
\renewcommand\footnoterule{%
  \kern-\p@
  \hrule \@width .4\columnwidth
  \kern .6\p@}
\long\def\@makefntext#1{%
    \noindent
    \hangindent 5\p@
    \hbox to5\p@{\hss$\m@th^{\@thefnmark}$}#1}
\newcommand\ccname{cc}
\newcommand\enclname{encl}
\newcommand\pagename{Page}
\newcommand\headtoname{To}

\newcommand\today{\ifcase\month\or
  January\or February\or March\or April\or May\or June\or
  July\or August\or September\or October\or November\or December\fi
  \space\number\day, \number\year}
\setlength\columnsep{10\p@}
\setlength\columnseprule{0\p@}
\pagestyle{plain}
\pagenumbering{arabic}
\raggedbottom
\onecolumn
\@fileswfalse
\endinput
%% 
%% End of file `letter.cls'.