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% cmastro.tex: Using the cmastro fonts.
%
% Run this through tex (plain TeX) to get summary of the astro option for
% using the cmastro fonts.
\input astro
%
\def\t#1{\hbox{\tt #1}} \def\cs#1{\t{\char'134 #1}}
\def\_{\t{\char'137}} \def\${\t{\char'44}}
\def\{{\t{\char'173}} \def\}{\t{\char'175}}
\def\AMS{{$\cal A$\kern-.1667em\lower.5ex\hbox{$\cal M$}\kern-.125em$\cal S$}}
\def\LaTeX{L\kern-.36em\raise.3ex\hbox{\sevenrm A}\kern-.15em\TeX}
%
\bigskip
\centerline{\bf Using the cmastro fonts}
\bigskip
The \t{cmastro} fonts contain the special symbols
$$
\vcenter{\tabskip=1emplus1fil
\halign to\hsize{&\hfil#\hfil\tabskip=1em&#\hfil\tabskip=1emplus1fil\cr
\omit\span\bf Planets &\omit\span\bf Other \cr
\Mercury & \cs{Mercury} &\Sun & \cs{Sun} \cr
\Venus & \cs{Venus} &\Moon & \cs{Moon} \cr
\Earth & \cs{Earth} \cr
\Mars & \cs{Mars} &\ascnode & \cs{ascnode} \cr
\Jupiter & \cs{Jupiter} &\descnode & \cs{descnode} \cr
\Saturn & \cs{Saturn} \cr
\Uranus & \cs{Uranus} &\VE & \cs{VE} \cr
\Neptune & \cs{Neptune} &\AE & \cs{AE} \cr
\Pluto & \cs{Pluto} &\circ & \cs{circ} \cr
}}
$$
to \TeX's repertoire of characters. They also work in sub- and
superscripts, {\it e.g.}, \$\t{M}\_\cs{Jupiter}\$ will give
$M_\Jupiter$.
In order to use the fonts you must create and install \t{tfm} and
bitmap files as well as the two \TeX\ sources \t{astro.tex} and
\t{astro.sty} in a place where \TeX\ will find them. Then
\item{$\bullet$} In \LaTeX\ you should use the ``\t{[astro]}'' document style
option, {\it e.g.},
$$
\cs{documentstyle[astro,12pt]\{article\}}
$$
\item{$\bullet$} With plain \TeX\ and \AMS-\TeX\ you should add the line
$$
\cs{input astro}
$$
in the preamble of your document.
\bye
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