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.nr _0 \n(c.
.\"	@(#)eqn.me	2.1	8/18/80
.\"	%beginstrip%
.de EQ			\" *** equation start
.ec
.if !\\n(?e \
\{\
.	if "\\n(.z"|e" .tm Line \\n(c. -- Nested .EQ request
.	@D 1 "\\$1" "\\$2"
.	@C 2
.	di |e
.\}
.ls 1
.in 0
.nf
..
.de EN			\" *** equation end
.br
.ie "\\$1"C" \
\{\
.	nr ?e 1
.	sp \\n(esu
.\}
.el \
\{\
.	nr ?e 0
.	di
.	if \\n(dn \
.		@q		\" actual equation output
.	rm |e
.	rm 10
.	rm 11
.	rm 12
.	rm 13
.	rm 14
.	rm 15
.	rm 16
.	rm 17
.	rm 18
.	rm 19
.	rm 20
.	rm 21
.	rm 22
.	rm 23
.	ev
.\}
..
.de @q			\" --- equation output
.nr _Q \\n(dnu
.ev
.sp \\n(esu			\" output rest of preceeding text
.@C 2				\" .ev 2 may be jumbled from header
.ie \\n(_d=1 \
.	in (\\n(.lu+\\n($iu-\\n(dlu)/2u
.el .ie \\n(_d=2 \
.	in \\n($iu
.el .ie \\n(_d=3 \
.	in \\n(biu+\\n($iu
.el .if \\n(_d=4 \
.	in 0
.if !"\\n(.z"" \!.ne \\n(_Qu
.ne \\n(_Qu+\n(.Vu		\" keep it on one page
.mk _q
.if \n@>1 .tm --@e: _Q=\\n(_Q _q=\\n(_q nl=\\n(nl |p=\\*(|p
.if !"\\*(|p"" \
\{\
.	rs
.	sp (\\n(_Qu-\\n(.vu)/2u
.	tl """\\*(|p"
.	rt \\n(_qu
.\}
.|e
.sp |\\n(_qu+\\n(_Qu
.sp \\n(esu+\\n(.Lv-1v
.rr _q
.rr _Q
..
.nr c. \n(_0

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