6 .\" below are three simple macros to get the drawings right
7 .\" added by Dick Grune
8 .de Dr \" Drawing $1 (size)
12 .ft CW \" constant spacing
15 .de Df \" Drawing Footer
22 .de De \" Drawing End $1 (lines)
30 .\" macro for exponents, added by Ceriel Jacobs
31 .de Ex \" Exponent $1 $2 [$3]
32 \\$1\v'-0.5m'\s-2\\$2\s+2\v'0.5m'\\$3
34 .\" QQ is like PP, but without space
35 . \" use .PP, with PD 0.
62 .ds Tl "\\n(N1.\\n(N2 \\$1
67 \\fB\\n(N1.\\n(N2 \\$1\fP
72 .ds Tl "\\n(N1.\\n(N2.\\n(N3 \\$1
75 \\fI\\n(N1.\\n(N2.\\n(N3 \\$1\fP
79 .ds Tl "\\n(N1.\\n(N2.\\n(N3.\\n(N4 \\$1
83 \\fI\\n(N1.\\n(N2.\\n(N3.\\n(N4 \\$1\fP
97 .if \\$1=0 \!.sp \\\\n(PDu
98 \!\l\&\\$1n\ \&\\*(Tl \l\&|\\\\n(LLu-\w\&\ \\n(PN\&u.\&\ \\n(PN
110 .if \\n(PN%2=1 .tl '''\\n(PN'
111 .if (\\n(PN%2=0)&(\\n(PN) .tl '\\n(PN'''