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Test Your Knowledge in Computers #663
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American computer programmer Timothy Paterson wrote the original operating system for the Intel 8086 microprocessor in 1980, initially calling it QDOS (Quick and Dirty Operating System).
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eqnchar(7) [bsd man page]

EQNCHAR(7)						 Miscellaneous Information Manual						EQNCHAR(7)

tdefine  ciplus  %  ";O"  %  ndefine  ciplus  % + % tdefine citimes % "O" % ndefine citimes % x % tdefine =wig % "~" % ndefine =wig % "~" % tdefine
bigstar % ";x" % ndefine bigstar % - % tdefine =dot % "." % ndefine =dot % = dot % tdefine orsign % "/" % ndefine orsign % / % tdefine andsign  %
"/"  %  ndefine andsign % / % tdefine =del % "/" % ndefine =del % = to DELTA % tdefine oppA % "" % ndefine oppA % - % tdefine oppE %"-" % nde-
fine oppE % / % tdefine incl % "--" % ndefine incl % _ % tdefine nomem % "/" % ndefine nomem % / % tdefine angstrom % "o" % ndefine angstrom  %  A
to  o  %  tdefine star %{ roman "*"}% ndefine st/r % * % tdefine || % || % tdefine <wig % ~" % ndefine <wig %{ < from "~" }% tdefine >wig % "~" %
ndefine >;wig %{ > from "~" }% tdefine langle % "" % ndefine langle %<% tdefine rangle % "/" % ndefine rangle %>% tdefine hbar	%  "_"	%  ndefine
hbar % - % ndefine ppd % | % tdefine ppd % "|" % tdefine <-> % "->" % ndefine <-> % "<-->" % tdefine <=> % "=>" % ndefine <=> % "<=>" % tdefine |<
% "|" % ndefine |< % | % tdefine |> % "|" % ndefine |> % > % tdefine ang % "_" % ndefine ang % _ % tdefine rang % "_" % ndefine rang % L % tdefine
3dot  % ";." % ndefine 3dot % . % tdefine thf % "..." % ndefine thf % .. % tdefine quarter % roman 1/4 % ndefine quarter % 1/4 % tdefine 3quarter %
roman 3/4 % ndefine 3quarter % 3/4 % tdefine degree % o % ndefine degree % nothing sup o % tdefine square % [] % ndefine square  %  []	%  tdefine
circle % O % ndefine circle % O % tdefine blot % ";[]" % ndefine blot % X % tdefine bullet % o % ndefine bullet % e % tdefine -wig % "~=" % ndefine
-wig % - to "~" % tdefine wig % ~ % ndefine wig % "~" % tdefine prop % oc % ndefine prop % oc % tdefine empty % {} % ndefine empty % /	%  tdefine
member	% E % ndefine member % - % tdefine cup % U % ndefine cup % U % define cap % (^) % define subset % (= % define supset % =) % define !subset
% (_ % define !supset % _) %

NAME
eqnchar - special character definitions for eqn SYNOPSIS
eqn /usr/pub/eqnchar [ files ] | troff [ options ] neqn /usr/pub/eqnchar [ files ] | nroff [ options ] DESCRIPTION
Eqnchar contains troff and nroff character definitions for constructing characters that are not available on the Graphic Systems typeset- ter. These definitions are primarily intended for use with eqn and neqn. It contains definitions for the following characters "ciplus" ciplus "||" || "square" square "citimes" citimes "langle" langle "circle" circle "wig" wig "rangle" rangle "blot" blot "-wig" -wig "hbar" hbar "bullet" bullet ">wig" >wig "ppd" ppd "prop" prop "<wig" <wig "<->" <-> "empty" empty "=wig" =wig "<=>" <=> "member" member "star" star "|<" |< "nomem" nomem "bigstar" bigstar "|>" |> "cup" cup "=dot" =dot "ang" ang "cap" cap "orsign" orsign "rang" rang "incl" incl "andsign" andsign "3dot" 3dot "subset" subset "=del" =del "thf" thf "supset" supset "oppA" oppA "quarter" quarter "!subset" !subset "oppE" oppE "3quarter" 3quarter "!supset"!supset "angstrom" angstrom "degree" degree FILES
/usr/pub/eqnchar SEE ALSO
troff(1), eqn(1) 3rd Berkeley Distribution May 20, 1985 EQNCHAR(7)

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