.LP .if n \{\ .nr LL 78 .ll 78 \} .tr ~ .\" below are three simple macros to get the drawings right .\" added by Dick Grune .de Dr \" Drawing $1 (size) .sp 1 .ne \\$1 .na .ft CW \" constant spacing .lg 0 \" no ligatures .. .de Df \" Drawing Footer .br .sp 1 .ft R .ce 1000 .lg 1 .. .de De \" Drawing End $1 (lines) .br .ft R .lg 1 .ce 0 .ad .sp \\$1 .. .\" macro for exponents, added by Ceriel Jacobs .de Ex \" Exponent $1 $2 [$3] \\$1\v'-0.5m'\s-2\\$2\s+2\v'0.5m'\\$3 .. .\" QQ is like PP, but without space . \" use .PP, with PD 0. .de QQ .nr xx \\n(PD .nr PD 0 .PP .nr PD \\n(xx .. .nr N1 0 .nr N2 0 .nr N3 0 .nr N4 0 .nr N5 0 .nr A5 0 .af A5 A .de P1 .nr N2 0 .nr N1 \\n(N1+1 .ds Tl "\\n(N1. \\$1 .Ca 0 .sp .LP \\fB\\n(N1. \\$1\\fP .sp .. .de P2 .nr N3 0 .nr N2 \\n(N2+1 .ds Tl "\\n(N1.\\n(N2 \\$1 .ne 5 .Ca 2 .sp .LP \\fB\\n(N1.\\n(N2 \\$1\fP .. .de P3 .nr N4 0 .nr N3 \\n(N3+1 .ds Tl "\\n(N1.\\n(N2.\\n(N3 \\$1 .Ca 4 .LP \\fI\\n(N1.\\n(N2.\\n(N3 \\$1\fP .. .de P4 .nr N4 \\n(N4+1 .ds Tl "\\n(N1.\\n(N2.\\n(N3.\\n(N4 \\$1 .ne 5 .Ca 6 .LP \\fI\\n(N1.\\n(N2.\\n(N3.\\n(N4 \\$1\fP .. .de AP .nr N5 \\n(N5+1 .nr A5 \\n(N5 .ds Tl "\\n(A5. \\$1 .ne 5 .Ca 0 .LP \\fB\\n(A5. \\$1\\fP .sp .. .de Ca .da Cc .if \\$1=0 \!.sp \\\\n(PDu \!\l\&\\$1n\ \&\\*(Tl \l\&|\\\\n(LLu-\w\&\ \\n(PN\&u.\&\ \\n(PN \!.br .da .. .de Ct .Cc .rm Cc .. .de PT .lt \\n(LLu .pc % .nr PN \\n%-1 .if \\n(PN%2=1 .tl '''\\n(PN' .if (\\n(PN%2=0)&(\\n(PN) .tl '\\n(PN''' .lt \\n(.lu ..