<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">%%% ======================================================================
%%%  @LaTeX-style{
%%%     filename        = "phutguide.sty",
%%%     version         = "1.0",
%%%     date            = "19 July 1992",
%%%     time            = "13:53:20.42 ",
%%%     author          = "Norman Gray",
%%%     address         = "Department of Physics
%%%                        Open University
%%%                        Milton Keynes
%%%                        MK7 6AA, UK",
%%%     e-mail          = "N.O.Gray@open.ac.uk (Internet)",
%%%     telephone       = "+44 908 652279",
%%%     FAX             = "+44 908 653744",
%%%     archived        = "Aston, SHSU",
%%%     keywords        = "hlp-files, VMS, help",
%%%     abstract        = "This file is part of the PPHLP package, which
%%%                        allows both printed manuals and VMS help library
%%%                        modules to be prepared from a single file.",
%%%     codetable       = "ISO/Ascii",
%%%     checksum        = "01208 337 784 12102",
%%%     docstring       = "This style-file supports a user guide.  The
%%%                        principal differences from an ordinary article
%%%                        style are in the \maketitle command and the
%%%                        information that goes into it, and in the
%%%                        provision of an advice-box which appears
%%%                        automatically at the end of the text.
%%%
%%%                        There are a number of parochialisms, marked by
%%%                        the line string `% parochial'.  Ach, why not call
%%%                        them `customisable sections'...?
%%%                        
%%%                        The checksum field above contains a CRC-16
%%%                        checksum as the first value, followed by the
%%%                        equivalent of the standard UNIX wc (word 
%%%                        count) utility output of lines, words, and
%%%                        characters.  This is produced by Robert 
%%%                        Solovay's checksum utility."
%%% }
%%% ======================================================================
% phutguide.sty  September 1990
% modified from acsguide.sty, May 87, written by ACS, Open University
\typeout{Physics Userguide. Released September 1990}      % parochial
\def\phutilitarians{Norman ({\tt no\char"5F gray})}       % parochial
\def\phutilitarianext{2279}                               % parochial
% Next line added by Steve Daniels 6 May 88
\newif\ifview\viewfalse
\def\@ptsize{1} 
\@namedef{ds@10pt}{\def\@ptsize{0}}
\@namedef{ds@11pt}{\def\@ptsize{1}}
\@namedef{ds@12pt}{\def\@ptsize{2}} 
\def\ds@twoside{\@twosidetrue \@mparswitchtrue} 
\def\ds@draft{\overfullrule 5pt} 
\@options
%\input acsguide1\@ptsize.sty\relax
\input phutguide11.sty\relax


\def\labelenumi{\arabic{enumi}.} 
\def\theenumi{\arabic{enumi}} 
\def\labelenumii{(\alph{enumii})}
\def\theenumii{\alph{enumii}}
\def\p@enumii{\theenumi}
\def\labelenumiii{\roman{enumiii}.}
\def\theenumiii{\roman{enumiii}}
\def\p@enumiii{\theenumi(\theenumii)}
\def\labelenumiv{\Alph{enumiv}.}
\def\theenumiv{\Alph{enumiv}} 
\def\p@enumiv{\p@enumiii\theenumiii}

\def\labelitemi{$\bullet$}
\def\labelitemii{\bf --}
\def\labelitemiii{$\ast$}
\def\labelitemiv{$\cdot$}

\def\verse{\let\\=\@centercr 
 \list{}{\itemsep\z@ \itemindent -1.5em\listparindent \itemindent 
 \rightmargin\leftmargin\advance\leftmargin 1.5em}\item[]}
\let\endverse\endlist
\def\quotation{\list{}{\listparindent 1.5em
 \itemindent\listparindent
 \rightmargin\leftmargin \parsep 0pt plus 1pt}\item[]}
\let\endquotation=\endlist
\def\quote{\list{}{\rightmargin\leftmargin}\item[]}
\let\endquote=\endlist

\def\descriptionlabel#1{\hspace\labelsep \bf #1}
\def\description{\list{}{\labelwidth\z@ \itemindent-\leftmargin
 \let\makelabel\descriptionlabel}}
\let\enddescription\endlist


\def\theequation{\arabic{equation}}


\def\titlepage{\@restonecolfalse\if@twocolumn\@restonecoltrue\onecolumn
 \else \newpage \fi \thispagestyle{plain}\c@page\z@}
\def\endtitlepage{\if@restonecol\twocolumn \else \newpage \fi}

\arraycolsep 5pt \tabcolsep 6pt \arrayrulewidth .4pt \doublerulesep 2pt 
\tabbingsep \labelsep 

\skip\@mpfootins = \skip\footins
\fboxsep = 3pt \fboxrule = .4pt 

\newcounter{part}
\newcounter {section}
\newcounter {subsection}[section]
\newcounter {subsubsection}[subsection]
\newcounter {paragraph}[subsubsection]
\newcounter {subparagraph}[paragraph]

\def\thepart{\Roman{part}} \def\thesection {\arabic{section}}
\def\thesubsection {\thesection.\arabic{subsection}}
\def\thesubsubsection {\thesubsection .\arabic{subsubsection}}
\def\theparagraph {\thesubsubsection.\arabic{paragraph}}
\def\thesubparagraph {\theparagraph.\arabic{subparagraph}}

\def\@pnumwidth{1.55em}
\def\@tocrmarg {2.55em}
\def\@dotsep{4.5}
\setcounter{tocdepth}{3}

\def\tableofcontents{\section*{Contents\markboth{CONTENTS}{CONTENTS}}
 \@starttoc{toc}}
\def\l@part#1#2{\addpenalty{\@secpenalty}
 \addvspace{2.25em plus 1pt} \begingroup
 \@tempdima 3em \parindent \z@ \rightskip \@pnumwidth \parfillskip
-\@pnumwidth 
 {\large \bf \leavevmode #1\hfil \hbox to\@pnumwidth{\hss #2}}\par
 \nobreak \endgroup}
\def\l@section#1#2{\addpenalty{\@secpenalty} \addvspace{1.0em plus 1pt}
\@tempdima 1.5em \begingroup
 \parindent \z@ \rightskip \@pnumwidth 
 \parfillskip -\@pnumwidth 
 \bf \leavevmode #1\hfil \hbox to\@pnumwidth{\hss #2}\par
 \endgroup}
\def\l@subsection{\@dottedtocline{2}{1.5em}{2.3em}}
\def\l@subsubsection{\@dottedtocline{3}{3.8em}{3.2em}}
\def\l@paragraph{\@dottedtocline{4}{7.0em}{4.1em}}
\def\l@subparagraph{\@dottedtocline{5}{10em}{5em}}
\def\listoffigures{\section*{List of Figures\markboth
 {LIST OF FIGURES}{LIST OF FIGURES}}\@starttoc{lof}}
\def\l@figure{\@dottedtocline{1}{1.5em}{2.3em}}
\def\listoftables{\section*{List of Tables\markboth
 {LIST OF TABLES}{LIST OF TABLES}}\@starttoc{lot}}
\let\l@table\l@figure


\def\thebibliography#1{\section*{References\markboth
 {REFERENCES}{REFERENCES}}\list
 {[\arabic{enumi}]}{\settowidth\labelwidth{[#1]}\leftmargin\labelwidth
 \advance\leftmargin\labelsep
 \usecounter{enumi}}
 \def\newblock{\hskip .11em plus .33em minus -.07em}
 \sloppy
 \sfcode`\.=1000\relax}
\let\endthebibliography=\endlist
 

\newif\if@restonecol
\def\theindex{\@restonecoltrue\if@twocolumn\@restonecolfalse\fi
\columnseprule \z@
\columnsep 35pt\twocolumn[\section*{Index}]
 \markboth{INDEX}{INDEX}\thispagestyle{plain}\parindent\z@
 \parskip\z@ plus .3pt\relax\let\item\@idxitem}
\def\@idxitem{\par\hangindent 40pt}
\def\subitem{\par\hangindent 40pt \hspace*{20pt}}
\def\subsubitem{\par\hangindent 40pt \hspace*{30pt}}
\def\endtheindex{\if@restonecol\onecolumn\else\clearpage\fi}
\def\indexspace{\par \vskip 10pt plus 5pt minus 3pt\relax}

\def\footnoterule{\kern-3\p@ \hrule width \columnwidth  \kern 2.6\p@} 

\long\def\@makefntext#1{\parindent 1em\noindent 
 \hbox to 1.8em{\hss$^{\@thefnmark}$}#1}


\setcounter{topnumber}{2}
\def\topfraction{.7}
\setcounter{bottomnumber}{1}
\def\bottomfraction{.3}
\setcounter{totalnumber}{3}
\def\textfraction{.2}
\def\floatpagefraction{.5}
\setcounter{dbltopnumber}{2}
\def\dbltopfraction{.7}
\def\dblfloatpagefraction{.5}

\long\def\@makecaption#1#2{
 \vskip 10pt 
 \setbox\@tempboxa\hbox{{\bf #1:} #2}
 \ifdim \wd\@tempboxa &gt;\hsize \unhbox\@tempboxa\par \else \hbox
to\hsize{\hfil\box\@tempboxa\hfil} 
 \fi}


\newcounter{figure}
\def\thefigure{\@arabic\c@figure}
\def\fps@figure{tbp}
\def\ftype@figure{1}
\def\ext@figure{lof}
\def\fnum@figure{Figure \thefigure}
\def\figure{\@float{figure}}
\let\endfigure\end@float
\@namedef{figure*}{\@dblfloat{figure}}
\@namedef{endfigure*}{\end@dblfloat}
\newcounter{table}
\def\thetable{\@arabic\c@table}
\def\fps@table{tbp}
\def\ftype@table{2}
\def\ext@table{lot}
\def\fnum@table{Table \thetable}
\def\table{\@float{table}}
\let\endtable\end@float
\@namedef{table*}{\@dblfloat{table}}
\@namedef{endtable*}{\end@dblfloat}

\gdef\@date{\thismonth}
\def\pagetitle#1{\gdef\@pagetitle{#1}}
\def\userguide#1{\gdef\@userguide{#1}}
\def\authorext#1{\gdef\@authorext{#1}}
\def\hoverline#1{\relax\ifmmode
                   \overline{\bigstrut #1}\else
                   $\overline{\hbox{\bigstrut #1}}$\relax\fi}
\newbox\bigstrutbox
\setbox\bigstrutbox=\hbox{\vrule height10pt depth3.5pt width0pt}
\def\bigstrut{\relax\ifmmode\copy\bigstrutbox\else\unhcopy\bigstrutbox\fi}

\def\advbox{\if@twocolumn\else\vfill
\begin{center}
\fbox{\parbox{300pt}{\parskip=\smallskipamount\small\sl\@advboxinfo}}
\end{center}
\fi}
\def\@advboxinfo{    % default text              % parochial
This documentation is also available on-line, by typing\par
\$ help \toptopic\par
\ifx\@author\@empty\else For further information on this package, see
\@author\ifx\@authorext\undefined\else\ on extension \@authorext\fi. \fi
To gain access to physics\_utilities, give the command\par
\$ @ science\$dsk:[physics\_utilities.util]phut\_setup}
\long\def\advboxinfo#1{\long\gdef\@advboxinfo{#1}}

\def\maketitle{\par
 \begingroup
  \def\thefootnote{\fnsymbol{footnote}}
  \def\@makefnmark{\hbox to 0pt{$^{\@thefnmark}$\hss}} 
  \if@twocolumn \twocolumn[\@maketitle] 
   \else \newpage \global\@topnum\z@ \@maketitle \fi
  \thispagestyle{empty}\@thanks
 \endgroup
 \setcounter{footnote}{0}
 \ifx\@pagetitle\undefined\let\@pagetitle=\@title\fi
 \let\maketitle\relax
 \let\@maketitle\relax
 \gdef\@thanks{}\gdef\@title{}\let\thanks\relax}
\def\@maketitle{\newpage
 \ifx\@userguide\undefined\let\@userguide=\@empty\fi
 \hrule\vskip 20pt\par\noindent
 {\Large\bf Physics User Guide \@userguide}                 % parochial
  \vskip 25pt\par\noindent
 {\LARGE\bf\@title}\vskip 25pt\par
 \hrule \par
 \vskip 20pt} 

\def\abstract{\if@twocolumn
  \section*{Abstract}
 \else 
  \quote \sl
 \fi}
\def\endabstract{\if@twocolumn\else
  \endquote
  \flushright
   \ifx\@author\undefined\let\@author=\@empty
        \else\sl \@author\\ \fi
   \sl\@date
  \endlist
  \vskip 5pt\hrule\vskip 15pt
 \fi}

\mark{{}{}} 

\def\ps@plain{
 \def\@oddhead{}
  \def\@oddfoot{\hfil \bf\thepage \hfil}
 \def\@evenhead{}
 \def\@evenfoot{\hfil \bf\thepage \hfil}}
\if@twoside
 \def\ps@headings{
  \ifx\@pagetitle\undefined\let\@pagetitle=\@title\fi
  \ifx\@userguide\undefined\let\@userguide=\@empty\fi
  \def\@oddhead{\protect\underline{\vbox{\hsize=\textwidth\noindent 
                        \bf \@date \hfill \@pagetitle}}}
  \def\@oddfoot{\protect\hoverline{\vbox{\hsize=\textwidth\noindent 
                        \bf Physics User Guide \@userguide \hfill \thepage}}}
                            % parochial
  \def\@evenhead{\protect\underline{\vbox{\hsize=\textwidth\noindent
                        \bf \@pagetitle \hfill \@date}}}
  \def\@evenfoot{\protect\hoverline{\vbox{\hsize=\textwidth\noindent 
                        \bf \thepage \hfill Physics User Guide \@userguide}}}
  \def\sectionmark##1{}
  \def\subsectionmark##1{}}
\else
 \def\ps@headings{
  \ifx\@date\undefined\let\@date=\thismonth\fi
  \ifx\@userguide\undefined\let\@userguide=\@empty\fi
  \ifx\@pagetitle\undefined\let\@pagetitle=\@title\fi
  \def\@oddhead{\protect\underline{\vbox{\noindent
                        \bf\@date \hfill \@pagetitle}}}
  \def\@oddfoot{\protect\hoverline{\vbox{\noindent 
                        \bf Physics User Guide \@userguide \hfill \thepage}}}
                             % parochial
  \def\@evenhead{}
  \def\@evenfoot{}
  \def\sectionmark##1{}
  \def\subsectionmark##1{}}
\fi
\def\ps@myheadings{
 \def\@oddhead{\hbox{}\sl\rightmark \hfil \rm\thepage}
 \def\@oddfoot{}
 \def\@evenhead{\rm \thepage\hfil\sl\leftmark\hbox{}}
 \def\@evenfoot{}
 \def\sectionmark##1{}
 \def\subsectionmark##1{}}


\def\today{\space\number\day\ \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\ 
\number\year}
\def\thismonth{\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\ 
\number\year}


\ps@headings \pagenumbering{arabic} \onecolumn \if@twoside\else\raggedbottom\fi 
</pre></body></html>