4.1cBSD/usr/doc/eqn/e.mac

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.de UC
\&\\$3\s-1\\$1\\s0\&\\$2
..
.de IT
.if n .ul
\&\\$3\f2\\$1\fP\&\\$2
..
.de UL
.if n .ul
\&\\$3\f3\\$1\fP\&\\$2
..
.de BD
.bd 3 \\$1
..
.de BI
.bd I \\$1
..
.de P1
.DS I 3n
.nf
.if n .ta 5 10 15 20 25 30 35 40 45 50 55 60
.if t .ta .4i .8i 1.2i 1.6i 2i 2.4i 2.8i 3.2i 3.6i 4i 4.4i 4.8i 5.2i 5.6i
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..
.de P2
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.hw semi-colon
.hw estab-lished
.hy 14
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.		\"special chars in programs
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.ds , \s\\nP,\s0
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.ds : \s\\nP\z.\v'-.3m'.\v'.3m'\s0
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.ds ^ \h'-.1m'\(no\h'.1m'
.de WS
.sp \\$1
..