% Use the full page
%
\oddsidemargin 18pt
\evensidemargin 18pt
\topmargin 0pt
\textheight 595pt
\textwidth 432pt

\def\us{\_}

%Regular headings
\def\ps@regularheadings{
	\def\@oddfoot{\hbox{}\hfil\thepage\hfil}
	\def\@evenfoot{\hbox{}\hfil\thepage\hfil}
	\def\@oddhead{\hbox{}\hfil\small\sl\rightmark}
	\def\@evenhead{\hbox{}\small\sl\rightmark\hfil}
	\def\chaptermark##1{\markright{##1}}
	\def\sectionmark##1{}
	\def\subsectionmark##1{}}

% Topheading supplies left and right flushed headings for the
%   lrheading command.
%
\def\topheadings#1#2{\def\@toplefthead{#1}\def\@toprighthead{#2}}

% Page style: lrheadings
%  put text suplied by the topheadings command in the left and
%  right corners of the topheading.
%
\def\ps@lrheadings{%
\def\@oddhead{\hbox{}\sl\@toplefthead\hfil\sl\@toprighthead}%
\def\@evenhead{\sl\@toplefthead\hfil\sl\@toprighthead\hbox{}}%
\def\@oddfoot{\hbox{}\hfil\rm\thepage\hfil}%
\def\@evenfoot{\hbox{}\hfil\rm\thepage\hfil}}

% Page style: footpagenumber
%  put nothing in header and center the page number in the footer.
%
\def\ps@footpagenumber{%
\def\@oddhead{}\def\@evenhead{}%
\def\@oddfoot{\hbox{}\hfil\rm\thepage\hfil}%
\def\@evenfoot{\hbox{}\hfil\rm\thepage\hfil}}

% \skipline leaves a blank line realitive to the size of the current
%   font.
%
\def\skipline{\vskip 2em}


%
% get the title page correct
%

% set these to do something
\def\writtenby{Sundar Narasimhan}
\def\contractno{Fill in appropriate ARPA/ONR contract no.}
\def\AIMEMO #1#2#3{ %
\begin{titlepage}
\begin{center}
MASSACHUSETTS INSTITUTE OF TECHNOLOGY\\
ARTIFICIAL INTELLIGENCE LABORATORY
\end{center}
\vskip 1in
\hbox to \hsize{A.I.Memo No. #1 \hfill \shortdate}
\vskip 1in
\begin{center}
{\bf #2}
\end{center}
\vskip 0.3in
\begin{center}
\writtenby
\end{center}
\vskip 0.3in
{\bf Abstract: } #3 \\
\hbox to \hsize{\hrulefill} % draw a line
\contractno \\
\copyright Massachusetts Institute of Technology, 1988.
\end{titlepage}
}

%
% Argument convention - same as before
% 
\def\AIWORKINGPAPER #1#2#3{ %
\begin{titlepage}
\begin{center}
MASSACHUSETTS INSTITUTE OF TECHNOLOGY\\
ARTIFICIAL INTELLIGENCE LABORATORY
\end{center}
\vskip 1in
\hbox to \hsize{Working Paper No. #1 \hfill \shortdate}
\vskip 1in
\begin{center}
{\bf #2}
\end{center}
\vskip 0.5in
\begin{center}
\writtenby
\end{center}
\vskip 1.5in
{\bf Abstract: } #3
\hbox to \hsize{\hrulefill} % draw a line
A.I.Lab Working Papers are produced for internal circulation and may
contain information that is, for example, too preliminary or too detailed
for formal publication. It is not intended that they should be considered
papers to which reference can be made in the literature.
\end{titlepage}
}

% stuff to change the format of figures
%
% change parameters to position floats
%
\renewcommand{\topfraction}{.9}
\renewcommand{\bottomfraction}{.9}
\renewcommand{\textfraction}{.1}
\renewcommand{\floatpagefraction}{.8}
\setcounter{totalnumber}{10}
\setcounter{topnumber}{10}
\setcounter{bottomnumber}{10}

%
%   The new definition for chapterhead
%
%\def\@chapapp{\sf Section}
\def\@makechapterhead#1{ \vspace*{10pt} { \parindent 0pt \raggedright
\hfill \large \bf \hfill \@chapapp \space \thechapter
\vskip 10pt
\hfill \Large \bf \hfill \ #1\par
\nobreak \vskip 5pt \hrule
\nobreak \vskip 40pt }}

\def\@makeschapterhead#1{ \vspace*{10pt} { \parindent 0pt \raggedright
\hfill \Large \bf \hfill \ #1\par
\nobreak \vskip 5pt \hrule
\nobreak \vskip 40pt }}

%
%  new section commands
%
\def\sectionstyle#1{\@nameuse{sectionstyle@#1}}

\def\sectionstyle@normal{%
\def\section{\@startsection {section}{1}{\z@}{3.25ex plus 1ex minus
    .2ex}{1.5ex plus .2ex}{\bf}}
%\def\section{\@startsection {section}{1}{\z@}{3.5ex plus 1ex minus
%   .2ex}{2.3ex plus .2ex}{\bf}}
\def\subsection{\@startsection{subsection}{2}{\z@}{3.25ex plus 1ex minus
   .2ex}{1.5ex plus .2ex}{\bf}}
\def\subsubsection{\@startsection{subsubsection}{3}{\z@}{3.25ex plus 1ex minus
   .2ex}{1.5ex plus .2ex}{\normalsize\bf}}
\def\paragraph{\@startsection
     {paragraph}{4}{\z@}{3.25ex plus 1ex minus .2ex}{-1em}{\normalsize\bf}}
\def\subparagraph{\@startsection
     {subparagraph}{4}{\parindent}{3.25ex plus 1ex minus
     .2ex}{-1em}{\normalsize\bf}}}

\def\sectionstyle@center{%
\def\section{\@startsection {section}{1}{\z@}{-3.5ex plus -1ex minus 
    -.2ex}{2.3ex plus .2ex}{\center\normalsize\bf}}
\def\subsection{\@startsection{subsection}{2}{\z@}{-3.25ex plus -1ex minus 
   -.2ex}{1.5ex plus .2ex}{\center\normalsize\it}}
\def\subsubsection{\@startsection{subsubsection}{3}{\z@}{-3.25ex plus
 -1ex minus -.2ex}{1.5ex plus .2ex}{\normalsize\it}}
\def\paragraph{\@startsection
     {paragraph}{4}{\z@}{3.25ex plus 1ex minus .2ex}{-1em}{\normalsize\it}*}
\def\subparagraph{\@startsection
     {subparagraph}{4}{\parindent}{3.25ex plus 1ex minus 
     .2ex}{-1em}{\normalsize\it}}}

%
% Setup the default section style
%
\sectionstyle{normal}


%
% The new quotation environment
%
% we use the peni font that looks rather nice.
%\font\peni=peni10
%\def\myquot#1{{\hbox{}
%\hfill\parbox{3.5in}{\raggedright{\peni #1}}
%	\\*[\parskip]}\par}


%\def\quotauth#1{\hbox to \hsize{\hfill \small #1 \\} \par}

% Date and time macros
\newcount\hour \newcount\minute
\hour=\the\time \minute=\the\time
\divide\hour by 60 \multiply\hour by 60%
\advance\minute by -\hour \divide\hour by 60%
\def\daytime{\number\hour:\ifnum \minute<10 0\fi\number\minute}%
\def\monthname {\ifcase\month \or
	Jan\or Feb\or Mar\or Apr\or May\or Jun\or
	Jul\or Aug\or Sep\or Oct\or Nov\or Dec\fi}%
\def\longmonthname {\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}%
\def\date{\monthname~\number\day,~\number\year}%
\def\datetime{\monthname~\number\day,~\number\year~[\daytime]}%
\def\slashdate{\number\month/\number\day/\number\year}%
\def\slashdatetime{\number\month/\number\day/\number\year~[\daytime]}%
\def\slashdate{\number\month/\number\day/\number\year}%
\def\shortdate{\longmonthname,~\number\year}%

% the new list environments - works only for top level environments
\newenvironment{alphenumerate}{\def\labelenumi{(\alph{enumi})}\begin{enumerate}}{\end{enumerate}}

\newenvironment{romanenumerate}{\def\labelenumi{\roman{enumi}.}\begin{enumerate}}{\end{enumerate}}

\newenvironment{Romanenumerate}{\def\labelenumi{\Roman{enumi}.}\begin{enumerate}}{\end{enumerate}}

\newenvironment{Alphenumerate}{\def\labelenumi{(\Alph{enumi})}\begin{enumerate}}{\end{enumerate}}

% Math macros
\def\v#1{\mbox{$\bf #1$}}
\def\cross{\times}
\def\jac_t{{\bf J}^{T}}
\def\jac_inv{{\bf J}^{-1}}
\def\jac{{\bf J}}
\def\elt{\in}
\def\notelt{\not{\in}}
\def\t{^T}
\def\inverse{^{-1}}
\def\degree#1{\mbox{$#1^{\circ}$}}

% Float stuff
%\def\@float#1{\@ifnextchar[{\@xfloat{#1}}{\edef\@tempa{\noexpand\@xfloat
%    {#1}[\csname fps@#1\endcsname]}\@tempa}}
%
%\def\@xfloat#1[#2]{\ifhmode \@bsphack\@floatpenalty -\@Mii\else
%   \@floatpenalty-\@Miii\fi\def\@captype{#1}\ifinner
%      \@parmoderr\@floatpenalty\z@
%    \else\@next\@currbox\@freelist{\@tempcnta\csname ftype@#1\endcsname
%       \multiply\@tempcnta\@xxxii\advance\@tempcnta\sixt@@n
%       \@tfor \@tempa :=#2\do
%                        {\if\@tempa h\advance\@tempcnta \@ne\fi
%                         \if\@tempa t\advance\@tempcnta \tw@\fi
%                         \if\@tempa b\advance\@tempcnta 4\relax\fi
%                         \if\@tempa p\advance\@tempcnta 8\relax\fi
%         }\global\count\@currbox\@tempcnta}\@fltovf\fi
%    \global\setbox\@currbox\vbox\bgroup
%    \boxmaxdepth\z@
%    \hsize\columnwidth \@parboxrestore}
%
%\def\end@float{\egroup
%   \ifnum\@floatpenalty <\z@
%     \@cons\@currlist\@currbox
%     \ifdim \ht\@currbox >\textheight
%        \ht\@currbox\textheight \fi
%     \global\@outputdonefalse
%     \ifnum\@floatpenalty < -\@Mii
%        \penalty\@floatpenalty
%        \if@outputdone\else\global\@outputdonetrue
%           \vbox{}\penalty\@floatpenalty\fi
%      \else \vadjust{\penalty \@floatpenalty}\@esphack\fi\fi}
%
%\def\@dblfloat#1{\if@twocolumn\else\@latexerr{Two-column float
%on one-column page}\@ehd\fi
%\@ifnextchar[{\@xdblfloat{#1}}{\@xdblfloat{#1}[tp]}}

%
% The new tabular environment
%
% To use this just \setcounter{maxline}{20} and you'll get
% only twenty columns in a table 
%
\def\@tablehead{}
\def\tablehead#1{\gdef\@tablehead{#1}}
\def\@tabletail{}
\def\tabletail#1{\gdef\@tabletail{#1}}
\newcounter{numline}  % This variable holds the current line number
\newcounter{maxline}  % This variable indicates how many lines in a table
% 
\def\calculatelines{\global\maxline=\textheight
\global\divide\maxline by \baselineskip
\global\multiply\maxline by 9
\global\divide\maxline by 10
}
%
\newenvironment{supertabular}[1]{  %
\edef\tableformat{\string#1} %
\setcounter{numline}{0}      %
\begin{tabular}{\tableformat}\@tablehead}{\@tabletail \end{tabular}}%
%
%
\def\lnumber{ %
\addtocounter{numline}{1} %
\ifnum \value{numline} = \value{maxline} %
        \@tabletail   %
        \end{tabular}%
        \clearpage   %
        \begin{tabular}{\tableformat}%
        \@tablehead %
	\setcounter{numline}{0}   %
\else %
	\arabic{numline} %
\fi}%
%


% line space commands (from dms.sty)
\def\varspace#1{\def\baselinestretch{#1}\large\normalsize}
\def\dspace{\def\baselinestretch{1.5}\large\normalsize}
\def\mspace{\def\baselinestretch{1.25}\large\normalsize}
\def\sspace{\def\baselinestretch{1.0}\large\normalsize}
\def\tspace{\def\baselinestretch{.85}\large\normalsize}
\let\double=\dspace
\let\single=\sspace

% Illustrate macros for latex - see GLR's working paper on the subject
\newcommand{\psbox}[3]{%
    \makebox[#1][l]{%
	\parbox[b]{0.0in}{\vspace*{#2}}%
	\special{psfile=#3}}}

% 4.25in=306 ps points, 5.50 in = 396 ps points
\newlength{\illheight}
\newcommand{\illustratefile}[3]{%
	\makebox[#1]{%
	\setlength{\illheight}{#2}%
	\raisebox{0.5\illheight}[\illheight][0.0in]{%
	\special{psfile=#3 hoffset=-306 voffset=-396}}}}

%
% Usage: \illustrate{label}{caption}{filename}
%
%\input{psadobe}
\newcommand{\illustrate}[3]{%
	\begin{figure}[htbp]  %
		\begin{center}%
		\psadobe{#3}  %
		\end{center}  %
	\caption{#2}          %
	\label{#1}            %
	\end{figure}}

%
% Usage: \illustratescaled{label}{caption}{filename}{50}
%	 100 == 1.0
%
\newcommand{\illustratescaled}[4]{%
	\begin{figure}[htbp]  %
		\begin{center}%
		\psadobepercent{#4}{#3}  %
		\end{center}  %
	\caption{#2}          %
	\label{#1}            %
	\end{figure}}

\newcommand{\illustratetwo}[6]{%
	\begin{figure}[htbp]  %
		\begin{center}%
		\psadobepercent{#4}{#3}  %
		\hfil                    %
		\psadobepercent{#6}{#5}  %
		\end{center}  %
	\caption{#2}          %
	\label{#1}            %
	\end{figure}}

\newcommand{\illspace}[3]{               %
	\begin{figure}[htbp]             %
		\begin{center}		 %
		\vspace{#3}		 %
		\end{center}		 %
	\caption{#2}			 %
	\label{#1}			 %
	\end{figure}}			 
		
\endinput