Blob
1 .lg 02 .ds sd #9/tmac3 .\" RT - reset everything to normal state4 .de RT5 .if \\n(CS \{\6 .SR 17 .BG\}8 .if !\\n(1T .BG9 .ce 010 .if !\\n(IK .if !\\n(IF .if !\\n(IX .if !\\n(BE .if !\\n(FT .di11 .ul 012 .if \\n(QP \{\13 . ll +\\n(QIu14 . in -\\n(QIu15 . nr QP -1\}16 .if \\n(NX<=1 .if \\n(AJ=0 .if \\n(FT=0 .ll \\n(LLu17 .if !\\n(IF \{\18 . ps \\n(PS19 . ie \\n(VS>=41 .vs \\n(VSu20 . el .vs \\n(VSp\}21 .ie \\n(IP \{\22 . in \\n(I\\n(IRu23 . nr IP -1\}24 .el .if !\\n(IR \{\25 . nr I1 \\n(PIu26 . nr I2 027 . nr I3 028 . nr I4 029 . nr I5 0\}30 .ft 131 .ta 5n 10n 15n 20n 25n 30n 35n 40n 45n 50n 55n 60n 65n 70n 75n 80n32 .hy \\n(HY33 .fi34 ..35 . \"IZ - initialization36 .de IZ37 .so \\*(sd/tmac.sdisp38 .nr TN 039 .em EM40 . \" ACCENTS say \*'e or \*`e to get e acute or e grave both were 4/1041 .ds ' \h'\w'e'u*1/10'\z\(aa\h'-\w'e'u*1/10'42 .ds ` \h'\w'e'u*2/10'\z\(ga\h'-\w'e'u*2/10'43 . \" UMLAUT \*:u, etc.44 .if t .ds : \\v'-0.6m'\\h'(1u-(\\\\n(.fu%2u))*0.13m+0.00m'\\z.\\h'0.2m'\\z.\\h'-((1u-(\\\\n(.fu%2u))*0.13m+0.20m)'\\v'0.6m'45 .if n .ds : \z"46 . \" TILDE and CIRCUMFLEX47 .ds ^ \\\\k:\\h'-\\\\n(.fu+1u/2u*2u+\\\\n(.fu-1u*0.13m+0.06m'\\z^\\h'|\\\\n:u'48 .ds ~ \\\\k:\\h'-\\\\n(.fu+1u/2u*2u+\\\\n(.fu-1u*0.13m+0.06m'\\z~\\h'|\\\\n:u'49 . \" czech v symbol50 .ds v \\\\k:\\\\h'+\\\\w'e'u/4u'\\\\v'-0.6m'\\\\s6v\\\\s0\\\\v'0.6m'\\\\h'|\\\\n:u'51 . \" cedilla52 .ds , \\\\k:\\\\h'\\\\w'c'u*0.4u'\\\\z,\\\\h'|\\\\n:u'53 .so \\*(sd/tmac.srefs54 .ch FO \\n(YYu55 .if !\\n(FM .nr FM 1i56 .nr YY -\\n(FMu57 .nr XX 0 158 .nr IP 059 .nr PI 5n60 .nr QI 5n61 .nr I0 \\n(PIu62 .nr PS 1063 .nr VS 1264 .nr HY 1465 .ie n \{\66 . if !\\n(PD .nr PD 1v67 . nr DV 1v\}68 .el \{\69 . if !\\n(PD .nr PD 0.3v70 . nr DV .5v\}71 .nr ML 3v72 .ps \\n(PS73 .ie \\n(VS>=41 .vs \\n(VSu74 .el .vs \\n(VSp75 .nr IR 076 .nr I0 077 .nr I1 \\n(PIu78 .nr TB 079 .nr SJ \\n(.j80 .nr LL 6i81 .ll \\n(LLu82 .nr LT \\n(.l83 .lt \\n(LTu84 .ev 185 .if !\\n(FL .nr FL \\n(LLu*11u/12u86 .ll \\n(FLu87 .ps 888 .vs 10p89 .ev90 .if \\*(CH .ds CH "\(hy \\\\n(PN \(hy91 .wh 0 NP92 .wh -\\n(FMu FO93 .ch FO 16i94 .wh -\\n(FMu FX95 .ch FO -\\n(FMu96 .if t .wh -\\n(FMu/2u BT97 .if n .wh -\\n(FMu/2u-1v BT98 . \" no overstriking bold or italic; switch underlining to bold italic99 . \" (sad historical botch, the .uf font must be 2, 3, or 4)100 .if n .uf 4101 .if n .bd 3102 .nr CW 0-1103 .nr GW 0-1104 ..105 .de TM106 .if !\\n(IM .if !\\n(MN .pn 0107 .so \\*(sd/tmac.scover108 .if !\\n(IM .if !\\n(MN .rm IM MF MR109 .if n .if !\\n(.T .pi /usr/bin/col110 .nr ST 1111 .ds QF TECHNICAL MEMORANDUM112 .br113 .ds MN \\$1114 .if !"\\$1"" .nr MM 1115 .if !"\\$2"" .nr MC 1116 .if !"\\$3"" .nr MG 1117 .nr TN 1118 .if \\n(.$-1 .ds CA \\$2119 .if \\n(.$-2 .ds CC \\$3120 .rm RP S0 S2 AX121 ..122 . \" IM - internal memorandum123 .de IM124 .nr IM 1125 .TM "\\$1" "\\$2" "\\$3"126 .rm QF127 .RA128 .rm RA RP MF MR129 ..130 . \" MF - memorandum for file.131 .de MF132 .nr MN 1133 .TM "\\$1" "\\$2" "\\$3"134 .rm MR135 .rm IM136 .RA137 .rm RA RP TM138 ..139 . \" MR - memo for record140 .de MR141 .nr MN 2142 .TM "\\$1" "\\$2" "\\$3"143 .ds QF MEMORANDUM FOR RECORD144 .rm MF145 .RA146 .rm RA RP IM TM147 ..148 . \" LT - letter149 .de LT150 .if !\\n(PO .ie n .nr PO 1.5i151 .el .nr PO 1.3i152 .po \\n(POu153 .LP154 .rs155 .if !"\\$1"" \{\156 . vs -2p157 .if "\\$1"LT" .ta 3.9i 4.45i158 .if !"\\$1"LT" .ta 3.9i 4.45i159 . sp .2i160 . nf161 . if "\\$1"LT" \s36\(FA\s0162 . if !"\\$1"LT" \s36\(LH\s0163 . br164 \s7\l'7i'\s0165 .sp166 . br167 . if !"\\$2"" .ds xR " \\$2168 . ds xP 908-582-3000169 . if !"\\$3"" .ds xP \\$3170 . if "\\$1"LT" \s8\f(HBBell Laboratories\fP \fH600 Mountain Avenue171 . if !"\\$1"LT" \s8\f(HBBell Laboratories\fP \fH600 Mountain Avenue172 . if !"\\$2"" \\*(xR173 Murray Hill, NJ 07974-0636174 \\*(xP175 . if !"\\$4"" \\$4176 . if !"\\$5"" \\$5177 . if !"\\$6"" \\$6178 . if !"\\$7"" \\$7179 .ft 1180 .ps181 . sp -.75i182 . vs183 . fi \}184 .if n \{\185 . sp 1i186 . in 4.55i\}187 .if t \{\188 . sp 1.45i189 . in 3.5i\}190 .ll 8i191 \\*(DY192 .ll193 .in 0194 .br195 .if t .sp 3196 .if n \{\197 . sp198 . na\}199 .nf200 .rm CF201 .de SG \" nested defn202 .sp 2203 .ta 3.5i204 Sincerely,205 .sp 3206 \\\\$1207 .ds CH208 \\..209 ..210 .de OK211 .br212 .di213 .di OD214 ..215 .de RP \" released paper216 .nr ST 2217 .pn 0218 .rm SG CS TM QF IM MR MF EG219 .br220 ..221 .de TR \" Comp. Sci. Tech Rept series.222 .nr ST 3223 .pn 0224 .ds MN \\$1225 .rm SG CS TM QF IM MR M EG226 .br227 ..228 . \"FP - font position for a family229 .de FP230 .ds TF \\$1231 .if '\\$1'palatino'\{\232 . fp 1 R PA233 . fp 2 I PI234 . fp 3 B PB235 . fp 4 BI PX\}236 .if '\\$1'lucidabright'\{\237 . fp 1 R LucidaBright238 . fp 2 I LucidaBright-Italic239 . fp 3 B LucidaBright-Demi240 . fp 4 BI LucidaBright-DemiItalic241 . fp 5 CW LucidaSansCW\}242 .if '\\$1'lucidasans'\{\243 . fp 1 R LucidaSans244 . fp 2 I LucidaSansI245 . fp 3 B LucidaSansB246 . fp 5 CW LucidaCW\}247 .if '\\$1'syntax'\{\248 . fp 1 R Syntax249 . fp 2 I SyntaxI250 . fp 3 B SyntaxB251 . fp 5 CW LucidaCW\}252 .if '\\$1'century'\{\253 . ie '\\*(.T'202'\{\254 . fp 1 NR Centsb255 . fp 2 NI CentI256 . fp 3 NB CentB257 . fp 4 NX CentBI\}258 . el \{\259 . fp 1 NR260 . fp 2 NI261 . fp 3 NB262 . fp 4 NX\}\}263 .if '\\$1'helvetica'\{\264 . fp 1 H265 . fp 2 HI266 . fp 3 HB267 . fp 4 HX\}268 .if '\\$1'bembo'\{\269 . ie '\\*(.T'202'\{\270 . fp 1 B1 Bembo271 . fp 2 B2 BemboI272 . fp 3 B3 BemboB273 . fp 4 B4 BemboBI\}274 . el \{\275 . fp 1 B1276 . fp 2 B2277 . fp 3 B3278 . fp 4 B4\}\}279 .if '\\$1'optima'\{\280 . fp 1 R Optima281 . fp 2 I OptimaI282 . fp 3 B OptimaB283 . fp 4 BI OptimaBI\}284 .if '\\$1'souvenir'\{\285 . fp 1 R Souvenir286 . fp 2 I SouvenirI287 . fp 3 B SouvenirB288 . fp 4 BI SouvenirBI\}289 .if '\\$1'melior'\{\290 . fp 1 R Melior291 . fp 2 I MeliorI292 . fp 3 B MeliorB293 . fp 4 BI MeliorBI\}294 .if '\\$1'times'\{\295 . fp 1 R296 . fp 2 I297 . fp 3 B298 . fp 4 BI\}299 ..300 . \"TL - title and initialization301 .de TL302 .br303 .nr TV 1304 .if \\n(IM .rm CS305 .if \\n(MN .rm CS306 .ME307 .rm ME308 .di WT309 .na310 .fi311 .ie h .ll \\n(LLu312 .el \{\313 .ll 5.0i314 .if n .if \\n(TN .ll 29315 .if t .if \\n(TN .ll 3.5i \}316 .ft 3317 .ps \\n(PS318 .if !\\n(TN \{\319 . ps +2320 . vs \\n(.s+2321 . rm CS\}322 .hy 0323 .if h .ce 999324 ..325 .de TX326 .rs327 .sp .5i328 .ce 1000329 .if n .ul 1000330 .ps 12331 .ft 3332 .vs 15p333 .ne 4334 .hy 0335 .WT336 .hy \\n(HY337 .ce 0338 .ul 0339 ..340 . \" AU - author(s)341 .de AU342 .nr AV 1343 .ad \\n(SJ344 .br345 .di346 .br347 .nf348 .nr NA +1349 .ds R\\n(NA \\$1350 .ds E\\n(NA \\$2351 .di A\\n(NA352 .ll \\n(LLu353 .ie t \{\354 . ie !\\n(TN .ft 2355 . el \{\356 . ft 3357 . ll 1.4i\}\}358 .el \{\359 . ie !\\n(TN .ft 1360 . el \{\361 . ft 3362 . ll 16\}\}363 .ps \\n(PS364 .if h .ce 999365 ..366 .de AX367 .ft 1368 .rs369 .ce 1000370 .if n .ul 0371 .ps \\n(PS372 .ie \\n(VS>=41 .vs \\n(VSu373 .el .vs \\n(VSp374 .if t \{\375 . sp376 . A1377 . sp 0.5378 . ns379 . I1380 . if \\n(NA-1 .sp381 . A2382 . if \\n(NA-1 .sp 0.5383 . ns384 . I2385 . if \\n(NA-2 .sp386 . A3387 . if \\n(NA-2 .sp 0.5388 . ns389 . I3390 . if \\n(NA-3 .sp391 . A4392 . if \\n(NA-3 .sp 0.5393 . ns394 . I4395 . if \\n(NA-4 .sp396 . A5397 . if \\n(NA-4 .sp 0.5398 . ns399 . I5400 . if \\n(NA-5 .sp401 . A6402 . if \\n(NA-5 .sp 0.5403 . ns404 . I6405 . if \\n(NA-6 .sp406 . A7407 . if \\n(NA-6 .sp 0.5408 . ns409 . I7410 . if \\n(NA-7 .sp411 . A8412 . if \\n(NA-7 .sp 0.5413 . ns414 . I8415 . if \\n(NA-8 .sp416 . A9417 . if \\n(NA-8 .sp 0.5418 . ns419 . I9\}420 .if n \{\421 . sp 2422 . A1423 . sp424 . ns425 . I1426 . if \\n(NA-1 .sp 2427 . A2428 . if \\n(NA-1 .sp429 . ns430 . I2431 . if \\n(NA-2 .sp 2432 . A3433 . if \\n(NA-2 .sp434 . ns435 . I3436 . if \\n(NA-3 .sp 2437 . A4438 . if \\n(NA-3 .sp439 . ns440 . I4441 . if \\n(NA-4 .sp 2442 . A5443 . if \\n(NA-4 .sp444 . ns445 . I5446 . if \\n(NA-5 .sp 2447 . A6448 . if \\n(NA-5 .sp449 . ns450 . I6451 . if \\n(NA-6 .sp 2452 . A7453 . if \\n(NA-6 .sp454 . ns455 . I7456 . if \\n(NA-7 .sp 2457 . A8458 . if \\n(NA-7 .sp459 . ns460 . I8461 . if \\n(NA-8 .sp 2462 . A9463 . if \\n(NA-8 .sp464 . ns465 . I9\}466 ..467 . \"AI - authors institution468 .de AI469 .br470 .ft 1471 .di472 .di I\\n(NA473 .nf474 ..475 . \"AB - begin an abstract476 .de AB477 .br478 .di479 .ul 0480 .ce 0481 .nr 1T 1482 .nr IK 1483 .nr KI 1484 .di WB485 .rs486 .nr AJ 1487 .ce 1488 .ft 2489 .if n .ul490 .ll \\n(LLu491 .ie \\n(.$ \{\492 . if !"\\$1"-" .if !"\\$1"no" \\$1493 . if !"\\$1"-" .if !"\\$1"no" .sp\}494 .el \{\495 ABSTRACT496 .sp\}497 .hy \\n(HY498 .ul 0499 .ce 0500 .fi501 .ft 1502 .nr OJ \\n(.i503 .in +\\n(.lu/12u504 .ll -\\n(.lu/12u505 .br506 .ps \\n(PS507 .ie \\n(VS>=41 .vs \\n(VSu508 .el .vs \\n(VSp509 .ti +\\n(PIu510 .fi511 ..512 . \"AE - end of an abstract513 .de AE514 .br515 .di516 .ll \\n(LLu517 .ps \\n(PS518 .ie \\n(VS>=41 .vs \\n(VSu519 .el .vs \\n(VSp520 .nr 1T 0521 .nr IK 0522 .in \\n(OJu523 .nr AJ 0524 .di525 .ce 0526 .if \\n(ST=2 .SY527 .if \\n(ST<3 .rm SY528 ..529 . \"S2 - release paper style530 . \"SY - cover sheet of released paper531 .de SY532 .ll \\n(LLu533 .ns534 .if \\n(TV .TX535 .if \\n(AV .AX536 .rs537 .ce 0538 .nf539 .sp 3540 .ls 1541 .pn 2542 .WB543 .ls544 .sp 3v545 \\*(DY546 .sp |9i547 .if \\n(FP .FA548 .FG549 .if \\n(GA=1 .nr GA 2550 .fi551 ..552 . \"S2 - first text page, released paper format553 .de S2554 .ce 0555 .br556 .SY557 .rm SY558 .bp 1559 .if \\n(TV .TX560 .if \\n(AV .AX561 .rs562 .ce 0563 .ft 1564 .ad \\n(SJ565 ..566 . \"S0- mike lesk conserve paper style567 .de S0568 .ce 0569 .br570 .ll \\n(LLu571 .if \\n(TV+\\n(AV .ns572 .if \\n(TV .TX573 .if \\n(AV .AX574 .if \\n(TV+\\n(AV .rs575 .ce 0576 .if \\n(TV .sp 2577 .ls 1578 .if \\n(FP \{\579 . FJ580 . nf581 . FG582 . fi583 . FK584 . nr FP 0\}585 .nf586 .WB587 .ls588 .fi589 .ad \\n(SJ590 ..591 . \"S3 - CSTR style592 .de S3593 .rs594 .sp |2.25i595 .ce 1000596 .I1597 .if \\n(NA>1 \{\598 . sp .5599 . I2\}600 .if \\n(NA>2 \{\601 . sp .5602 . I3\}603 .if \\n(NA>3 \{\604 . sp .5605 . I4\}606 .if \\n(NA>4 \{\607 . sp .5608 . I5\}609 .if \\n(NA>5 \{\610 . sp .5611 . I6\}612 .if \\n(NA>6 \{\613 . sp .5614 . I7\}615 .if \\n(NA>7 \{\616 . sp .5617 . I8\}618 .if \\n(NA>8 \{\619 . sp .5620 . I9\}621 .sp |4i622 . \"check how long title is: can space extra .25 inch if short623 .di EZ624 .WT625 .di626 .if \\n(dn<1.5v .if \\n(NA=1 .sp .25i627 .ft 1628 Computing Science Technical Report No. \\*(MN629 .sp630 .if t .ft 3631 .if n .ul 100632 .ps 12633 .vs 15p634 .hy 0635 .WT636 .hy \\n(HY637 .ft 1638 .if n .ul 0639 .ps 10640 .vs 12p641 .sp642 .ft 1643 .A1644 .A2645 .A3646 .A4647 .A5648 .A6649 .A7650 .A8651 .A9652 .ce 0653 .sp |8.5i654 .ce 0655 \\*(DY656 .DZ657 .bp 0658 .ft 1659 .S2660 ..661 . \"SG - signature662 .de SG663 .br664 .KS665 .in +2u*\\n(.lu/3u666 .sp 4667 .A1668 .if \\n(NA>1 .sp 4669 .A2670 .if \\n(NA>2 .sp 4671 .A3672 .if \\n(NA>3 .sp 4673 .A4674 .if \\n(NA>4 .sp 4675 .A5676 .if \\n(NA>5 .sp 4677 .A6678 .if \\n(NA>6 .sp 4679 .A7680 .if \\n(NA>7 .sp 4681 .A8682 .if \\n(NA>8 .sp 4683 .A9684 .in685 .nf686 .if \\n(.$<1 .G9687 .sp -1688 .if \\n(.$>=1 \\$1689 .if \\n(.$>=2 \\$2690 .if \\n(.$>=3 \\$3691 .if \\n(.$>=4 \\$4692 .if \\n(.$>=5 \\$5693 .if \\n(.$>=6 \\$6694 .if \\n(.$>=7 \\$7695 .if \\n(.$>=8 \\$8696 .if \\n(.$>=9 \\$9697 .fi698 .br699 .KE700 ..701 . \"Tables. TS - table start, TE - table end702 .de TS703 .br704 .if !\\n(1T .RT705 .ul 0706 .ti \\n(.iu707 .if t .sp 0.5708 .if n .sp709 .if \\$1H .TQ710 .nr IX 1711 ..712 .if h \{\713 .de TS714 .nr tp -1 1715 .ds tp x\\n+(tp.png716 .html - <center><img src="\\*(tp"></center>717 .dp .TE troff2png >\\*(tp718 ..719 .\}720 .de TQ721 .di TT722 .nr IT 1723 ..724 .de TH725 .if \\n(.d>0.5v \{\726 . nr T. 0727 . T# 0\}728 .di729 .nr TQ \\n(.i730 .nr HT 1731 .in 0732 .mk #a733 .mk #b734 .mk #c735 .mk #d736 .mk #e737 .mk #f738 .TT739 .in \\n(TQu740 .mk #T741 ..742 .de TE743 .nr IX 0744 .if \\n(IT .if !\\n(HT \{\745 . di746 . nr EF \\n(.u747 . nf748 . TT749 . if \\n(EF .fi\}750 .nr IT 0751 .nr HT 0752 .if n .sp 1753 .if t .sp 0.5754 .rm a+ b+ c+ d+ e+ f+ g+ h+ i+ j+ k+ l+ n+ m+755 .rr 32 33 34 35 36 37 38 40 79 80 81 82756 .rr a| b| c| d| e| f| g| h| i| j| k| l| m|757 .rr a- b- c- d- e- f- g- h- i- j- k- l- m-758 ..759 .so \*(sd/tmac.skeep760 .de EQ \"equation, breakout and display761 .nr EF \\n(.u762 .rm EE763 .nr LE 1 \" 1 is center764 .ds EL \\$1765 .if "\\$1"L" \{\766 . ds EL \\$2767 . nr LE 0\}768 .if "\\$1"C" .ds EL \\$2769 .if "\\$1"R" \{\770 . ds EL \\$2 \" 2 is right adjust771 . nr LE 2\}772 .if "\\$1"I" \{\773 . nr LE 0774 . if "\\$3"" .ds EE \\h'|10n'775 . el .ds EE \\h'\\$3'776 . ds EL \\$2\}777 .if \\n(YE .nf778 .di EZ779 ..780 .de EN \" end of a displayed equation781 .br782 .di783 .rm EZ784 .nr ZN \\n(dn785 .if \\n(ZN .if !\\n(YE .LP786 .if !\\n(ZN .if !"\\*(EL"" .nr ZN 1787 .if \\n(ZN \{\788 . ie "\\n(.z"" \{\789 . if t .if !\\n(nl=\\n(PE .sp .5790 . if n .if !\\n(nl=\\n(PE .sp 1\}791 . el \{\792 . if t .if !\\n(.d=\\n(PE .sp .5793 . if n .if !\\n(.d=\\n(PE .sp 1\}\}794 'pc795 .if \\n(BD .nr LE 0 \" don't center if block display or mark/lineup796 .if \\n(MK \{\797 . if \\n(LE=1 .ds EE \\h'|10n'798 . nr LE 0\}799 'lt \\n(.lu800 .if !\\n(EP .if \\n(ZN \{\801 . if \\n(LE=1 .tl \(ts\(ts\\*(10\(ts\\*(EL\(ts802 . if \\n(LE=2 .tl \(ts\(ts\(ts\\*(10\\*(EL\(ts803 . if !\\n(LE \{\804 . if !\\n(BD .tl \(ts\\*(EE\\*(10\(ts\(ts\\*(EL\(ts805 . if \\n(BD .if \\n(BD<\\w\(ts\\*(10\(ts .nr BD \\w\(ts\\*(10\(ts806 . if \\n(BD \!\\*(10\\t\\*(EL\}\}807 .if \\n(EP .if \\n(ZN \{\808 . if \\n(LE=1 .tl \(ts\\*(EL\(ts\\*(10\(ts\(ts809 . if \\n(LE=2 .tl \(ts\\*(EL\(ts\(ts\\*(10\(ts810 . if !\\n(LE \{\811 . if !\\n(BD .tl \(ts\\*(EL\\*(EE\\*(10\(ts\(ts\(ts812 . if \\n(BD .if \\n(BD<\\w\(ts\\*(10\(ts .nr BD \\w\(ts\\*(10\(ts813 . if \\n(BD \!\\h'-\\\\n(.iu'\\*(EL\\h'|0'\\*(10\}\}814 'lt \\n(LLu815 'pc %816 .if \\n(YE .if \\n(EF .fi817 .if t .if \\n(ZN .sp .5818 .if n .if \\n(ZN .sp819 .ie "\\n(.z"" .nr PE \\n(nl820 .el .nr PE \\n(.d821 ..822 .de PS \" start picture823 . \" $1 is height, $2 is width, both in inches824 .if \\$1>0 .sp .35825 .ie \\$1>0 .nr $1 \\$1826 .el .nr $1 0827 .in (\\n(.lu-\\$2)/2u828 .ne \\$1829 ..830 .de PE \" end of picture831 .in832 .if \\n($1>0 .sp .65833 ..834 .if h \{\835 .de PS836 .nr tp -1 1837 .ds tp x\\n+(tp.png838 .html - <center><img src="\\*(tp" /></center>839 .dp .PE troff2png >\\*(tp840 ..841 .\}842 . \" .P1/.P2 macros for programs843 .844 .nr XP 1 \" delta point size for program845 .if h .nr XP 0846 .nr XV 1p \" delta vertical for programs847 .nr XT 8 \" delta tab stop for programs848 .nr DV .5v \" space before start of program849 .850 .de P1851 .nr P1 .4i \" program indent in .P1852 .nr OI .4i853 .if \\n(.$ .nr P1 \\$1854 .br855 .nr v \\n(.v856 .di p1857 .in +\\n(P1u858 .nf859 .ps -\\n(XP860 .vs -\\n(XVu861 .nr xx \\n(.sp862 .ft CW863 .nr t \\n(XT*\\w'x'u864 .ta 1u*\\ntu 2u*\\ntu 3u*\\ntu 4u*\\ntu 5u*\\ntu 6u*\\ntu 7u*\\ntu 8u*\\ntu 9u*\\ntu 10u*\\ntu 11u*\\ntu 12u*\\ntu 13u*\\ntu 14u*\\ntu865 ..866 .867 .de P2868 .br869 .ps \\n(PS870 .vs \\n(VSp871 .vs \\nvu872 .ft 1873 .in874 .di875 .br876 .sp \\n(DVu877 .br878 .if \\n(.$=0 .ne \\n(dnu \" -\\n(DVu879 .nf880 .p1881 .sp \\n(DVu882 .br883 .fi884 ..885 .886 .de ME887 .nr SJ \\n(.j888 .if \\n(LL .nr LT \\n(LL889 .nr YE 1890 .if !\\n(PO .nr PO \\n(.o891 .if \\n(mo-0 .ds MO January892 .if \\n(mo-1 .ds MO February893 .if \\n(mo-2 .ds MO March894 .if \\n(mo-3 .ds MO April895 .if \\n(mo-4 .ds MO May896 .if \\n(mo-5 .ds MO June897 .if \\n(mo-6 .ds MO July898 .if \\n(mo-7 .ds MO August899 .if \\n(mo-8 .ds MO September900 .if \\n(mo-9 .ds MO October901 .if \\n(mo-10 .ds MO November902 .if \\n(mo-11 .ds MO December903 .if \\n(dw-0 .ds DW Sunday904 .if \\n(dw-1 .ds DW Monday905 .if \\n(dw-2 .ds DW Tuesday906 .if \\n(dw-3 .ds DW Wednesday907 .if \\n(dw-4 .ds DW Thursday908 .if \\n(dw-5 .ds DW Friday909 .if \\n(dw-6 .ds DW Saturday910 .nr yP (\\n(yr+2000)/100)911 .nr yD (\\n(yr%100912 .af yD 01913 .if "\\*(DY"" .ds DY \\*(MO \\n(dy, \\n(yP\\n(yD914 .if "\\*(CF"" .if n .ds CF "\\*(DY915 ..916 . \"EM end up macro - process left over keep-release917 .de EM918 .br919 .if \\n(AJ .tm Syntax error: no .AE920 .if \\n(IF .ab Missing .FE somewhere921 .if t .if \\n(TB=0 .wh -1p CM922 .if \\n(TB \{\&\c923 ' bp924 . NP925 . ch CM 160\}926 ..927 . \"NP new page928 .de NP929 .rr PE930 .if \\n(FM+\\n(HM>=\\n(.p \{\931 . tm Margins bigger than page length.932 . ab933 . ex\}934 .if t .CM935 .if !\\n(HM .nr HM 1i936 'sp \\n(HMu/2u937 .ev 1938 .nr PX \\n(.s939 .nr PF \\n(.f940 .nr PV \\n(.v941 .lt \\n(LTu942 .ps \\n(PS943 .vs \\n(PS+2944 .ft 1945 .if \\n(PO .po \\n(POu946 .PT947 .ps \\n(PX948 .vs \\n(PVu949 .ft \\n(PF950 .ev951 'sp |\\n(HMu952 .nr XX 0 1953 .nr YY 0-\\n(FMu954 .ch FO 16i955 .ch FX 17i956 .ch FO \\n(.pu-\\n(FMu957 .ch FX \\n(.pu-\\n(FMu958 .if \\n(MF .FV959 .nr MF 0960 .mk961 .os962 .ev 1963 .if !\\n(TD .if \\n(TC<5 .XK964 .nr TC 0965 .ns966 .ev967 .nr TQ \\n(.i968 .nr TK \\n(.u969 .if \\n(IT \{\970 . in 0971 . nf972 . TT973 . in \\n(TQu974 . if \\n(TK .fi\975 \}976 .mk #T977 ....if t .if \\n(.o+\\n(LL>7.75i .tm Offset + line length exceeds 7.75 inches, too wide978 ..979 .de XK980 .nr TD 1981 .nf982 .ls 1983 .in 0984 .rn KJ KL985 .KL986 .rm KL987 .if "\\n(.z"KJ" .di988 .nr TB 0989 .if "\\n(.z"KJ" .nr TB 1990 .br991 .in992 .ls993 .fi994 .if (\\n(nl+1v)>(\\n(.p-\\n(FM) \{\995 . if \\n(NX>1 .RC996 . if \\n(NX<1 .bp\}997 .nr TD 0998 ..999 .de KD1000 .nr KM 01001 .if "\\n(.z"" .if \\$2>0 .if \\n(nl>\\n(HM \{\1002 . if (\\n(nl+1v)<(\\n(.p-\\n(FM) .di KJ \" full page figure must have new page1003 . sp 15i\}1004 .if "\\n(.z"" .if \\n(nl>\\n(HM .if \\$2=0 .if (\\n(nl+1v)>(\\n(.p-\\n(FM) .sp 15i1005 .if "\\n(.z"KJ" .nr KM 1 \" KM is 1 if in a rediversion of keeps1006 .if \\n(KM>0 \!.KD \\$1 \\$21007 .nr KR \\n(.t1008 .if \\n(nl<=\\n(HM .nr KR 327671009 .if \\n(KM=0 \{\1010 . if \\n(KR<\\$1 \{\1011 . di KJ1012 . nr KM 1\}1013 . if \\$2>0 .if (\\n(nl+1v)>(\\n(.p-\\n(FM) .sp 15i\}1014 .rs1015 .if \\n(KM=0 .if \\$2>0 .sp \\n(.tu-\\$1u1016 ..1017 .de PT1018 .lt \\n(LLu1019 .pc %1020 .nr PN \\n%1021 .if \\n%-1 .tl '\\*(LH'\\*(CH'\\*(RH'1022 .lt \\n(.lu1023 ..1024 . \"FO - footer of page1025 .de FO1026 .rn FO FZ1027 .if \\n(IT>0 \{\1028 . nr T. 11029 . if \\n(FC=0 .T# 11030 . br\}1031 .nr FC +11032 .if \\n(NX<2 .nr WF 01033 .nr dn 01034 .if \\n(FC<=1 .if \\n(XX .XF1035 .rn FZ FO1036 .nr MF 01037 .if \\n(dn .nr MF 11038 .if !\\n(WF \{\1039 . nr YY 0-\\n(FMu1040 . ch FO \\n(YYu\}1041 .if !\\n(dn .nr WF 01042 .if \\n(FC<=1 .if \\n(XX=0 \{\1043 . if \\n(NX>1 .RC1044 . if \\n(NX<1 'bp\}1045 .nr FC -11046 .if \\n(ML>0 .ne \\n(MLu1047 ..1048 . \"2C - begin double column1049 .de 2C1050 .MC \" default MC is double column1051 ..1052 .de MC \" multiple columns- arg is line length1053 .nr L1 \\n(LL*7/151054 .if \\n(CW>=0 .nr L1 \\n(CWu1055 .if \\n(.$ .nr L1 \\$1n1056 .if \\n(GW>=0 .nr GW \\n(GWu1057 .if \\n(.$>1 .nr GW \\$2n1058 .nr NQ \\n(LL/\\n(L11059 .if \\n(NQ<1 .nr NQ 11060 .if \\n(NQ>2 .if (\\n(LL%\\n(L1)=0 .nr NQ -11061 .if !\\n(1T \{\1062 . BG1063 . if n .sp 41064 . if t .sp 2\}1065 .if \\n(NX=0 .nr NX 11066 .if !\\n(NX=\\n(NQ \{\1067 . RT1068 . if \\n(NX>1 .bp1069 . mk1070 . nr NC 11071 . po \\n(POu\}1072 .if \\n(NQ>1 .hy \\n(HY1073 .nr NX \\n(NQ1074 .if \\n(NX>1 .nr CW \\n(L11075 .ll \\n(L1u1076 .nr FL \\n(L1u*11u/12u1077 .if \\n(NX>1 .if \\n(GW<0 .nr GW (\\n(LL-(\\n(NX*\\n(L1))/(\\n(NX-1)1078 .nr RO \\n(L1+\\n(GW1079 .ns1080 ..1081 .de RC1082 .ie \\n(NC>=\\n(NX .C21083 .el .C11084 ..1085 .de C11086 .rt1087 .po +\\n(ROu1088 .nr NC +11089 .if \\n(NC>\\n(NX .nr NC 11090 .nr XX 0 11091 .nr YY 0-\\n(FMu1092 .if \\n(MF .FV1093 .ch FX \\n(.pu-\\n(FMu1094 .ev 11095 .if \\n(TB .XK1096 .nr TC 01097 .ev1098 .nr TQ \\n(.i1099 .if \\n(IT \{\1100 . in 01101 . TT1102 . in \\n(TQu\}1103 .mk #T1104 .ns1105 ..1106 .de C21107 .po \\n(POu1108 .nr NC +11109 .if \\n(NC>\\n(NX .nr NC 11110 'bp1111 ..1112 . \"1C - return to single column format1113 .de 1C1114 .MC \\n(LLu1115 .hy \\n(HY1116 ..1117 .de MH1118 Bell Laboratories1119 Murray Hill, New Jersey 079741120 ..1121 .de PY1122 Bell Laboratories1123 Piscataway, New Jersey 088541124 ..1125 .de BT1126 .nr PX \\n(.s1127 .nr PF \\n(.f1128 .ft 11129 .ps \\n(PS1130 'lt \\n(LTu1131 .po \\n(POu1132 .if \\n%>0 .tl \(ts\\*(LF\(ts\\*(CF\(ts\\*(RF\(ts1133 .ft \\n(PF1134 .ps \\n(PX1135 ..1136 . \"PP - paragraph1137 .de PP1138 .RT1139 .if \\n(1T .sp \\n(PDu1140 .ti +\\n(PIu1141 ..1142 . \"SH - (unnumbered) section heading1143 .de SH1144 .ti \\n(.iu1145 .RT1146 .ie \\n(1T .sp 11147 .el .BG1148 .RT1149 .ne 41150 .ft 31151 .if n .ul 10001152 ..1153 . \"NH - numbered heading1154 .de N{1155 .RT1156 .ie \\n(1T .sp 11157 .el .BG1158 .RT1159 .ne 41160 .ft 31161 .if n .ul 10001162 .nr NS \\$11163 .if !\\n(.$ .nr NS 11164 .if !\\n(NS .nr NS 11165 .nr H\\n(NS +11166 .if !\\n(NS-4 .nr H5 01167 .if !\\n(NS-3 .nr H4 01168 .if !\\n(NS-2 .nr H3 01169 .if !\\n(NS-1 .nr H2 01170 .if !\\$1 .if \\n(.$ .nr H1 11171 .ds SN \\n(H1.1172 .ti \\n(.iu1173 .if \\n(NS-1 .as SN \\n(H2.1174 .if \\n(NS-2 .as SN \\n(H3.1175 .if \\n(NS-3 .as SN \\n(H4.1176 .if \\n(NS-4 .as SN \\n(H5.1177 ..1178 .de NH1179 .N{ \\$11180 \\*(SN1181 ..1182 . \"BG - begin, execute at first PP1183 .de BG1184 .br1185 .ME1186 .rm ME1187 .di1188 .ce 01189 .nr KI 01190 .hy \\n(HY1191 .nr 1T 11192 .nr CS 01193 .S\\n(ST1194 .rm S0 S1 S2 S3 OD OK TX AX WT CS TM IM MF MR RP I1 I2 I3 I4 I5 CB E1 E21195 .de TL1196 .ft 31197 .sp1198 .if n .ul 1001199 .ce 1001200 .ps +21201 \\..1202 .de AU1203 .ft 21204 .if n .ul 01205 .ce 1001206 .sp1207 .NL1208 \\..1209 .de AI1210 .ft 11211 .ce 1001212 .if n .ul 01213 .if n .sp1214 .if t .sp .51215 .NL1216 \\..1217 .RA1218 .rm RA1219 .rn FJ FS1220 .rn FK FE1221 .nf1222 .ev 11223 .ps \\n(PS-21224 .vs \\n(.s+2p1225 .ev1226 .if !\\n(KG .nr FP 01227 .if \\n(GA>1 .if \\n(KG=0 .nr GA 0 \" next UNIX must be flagged.1228 .nr KG 01229 .if \\n(FP \{\1230 . FS1231 . FG1232 . FE\}1233 .br1234 .if n .if \\n(TV .sp 21235 .if t .if \\n(TV .sp 11236 .fi1237 .ll \\n(LLu1238 .ev 11239 .if !\\n(FL .nr FL \\n(LLu*11u/12u1240 .ll \\n(FLu1241 .ev1242 ..1243 .de RA \"redefine abstract macros1244 .de AB1245 .br1246 .if !\\n(1T .BG1247 .ce 11248 .sp 11249 .ie \\n(.$ \{\1250 . if !"\\$1"-" .if !"\\$1"no" \{\1251 \\$11252 .sp\}\}1253 .el \{\1254 ABSTRACT1255 .sp\}1256 .sp 11257 .nr AJ 11258 .in +\\n(.lu/12u1259 .ll -\\n(.lu/12u1260 .RT1261 \\..1262 .de AE1263 .nr AJ 01264 .br1265 .in 01266 .ll \\n(LLu1267 .ie \\n(VS>=41 .vs \\n(VSu1268 .el .vs \\n(VSp1269 \\..1270 ..1271 . \"IP - indented paragraph1272 .de IP1273 .RT1274 .if !\\n(IP .nr IP +11275 .ie \\n(ID>0 .sp \\n(IDu1276 .el .sp \\n(PDu1277 .nr IU \\n(IR+11278 .if \\n(.$>1 .nr I\\n(IU \\$2n+\\n(I\\n(IRu1279 .if \\n(I\\n(IU=0 .nr I\\n(IU \\n(PIu+\\n(I\\n(IRu1280 .in \\n(I\\n(IUu1281 .nr TY \\n(TZ-\\n(.i1282 .nr JQ \\n(I\\n(IU-\\n(I\\n(IR1283 .ta \\n(JQu \\n(TYuR1284 .if \\n(.$ \{\1285 .ti \\n(I\\n(IRu1286 \&\\$1\t\c\}1287 ..1288 . \"LP - left aligned (block) paragraph1289 .de LP1290 .ti \\n(.iu1291 .RT1292 .if \\n(1T .sp \\n(PDu1293 ..1294 .de QP1295 .ti \\n(.iu1296 .RT1297 .if \\n(1T .sp \\n(PDu1298 .ne 1.11299 .nr QP 11300 .in +\\n(QIu1301 .ll -\\n(QIu1302 .ti \\n(.iu1303 ..1304 . \"IE - synonym for .LP1305 .de IE1306 .LP1307 ..1308 . \"RS - prepare for double indenting1309 .de RS1310 .nr IS \\n(IP1311 .RT1312 .nr IP \\n(IS1313 .nr IU \\n(IR1314 .nr IR +11315 .if !\\n(I\\n(IR .nr I\\n(IR \\n(I\\n(IU+\\n(PIu1316 .in \\n(I\\n(IRu1317 .nr TY \\n(TZ-\\n(.i1318 .ta \\n(TYuR1319 ..1320 . \"RE - retreat to the left1321 .de RE1322 .nr IS \\n(IP1323 .RT1324 .nr IP \\n(IS1325 .if \\n(IR>0 .nr IR -11326 .in \\n(I\\n(IRu1327 ..1328 .de TC1329 .nr TZ \\n(.lu1330 .if \\n(.$ .nr TZ \\$1n1331 .ta \\n(TZuR1332 ..1333 .de TD1334 .LP1335 .nr TZ 01336 ..1337 . \"CM - cut mark1338 .de CM1339 .po 01340 .lt 7.6i1341 .ft 11342 .ps 101343 .vs 4p1344 .if "\\*(.T"aps" .tl '--''--'1345 .po1346 .vs1347 .lt1348 .ps1349 .ft1350 ..1351 . \" fontname(CW) fontstr(\f(CW) first_arg goes_after goes_before1352 .de OF \" this is completely WRONG if any argument contains "'s1353 .nr PQ \\n(.f1354 .hy 01355 .if t .if "\\$3"" .ft \\$11356 .if t .if !"\\$3"" \{\1357 \&\\$5\\$2\\$3\\f\\n(PQ\\$41358 .hy \\n(HY\}1359 .if n \{\1360 . if \\n(.$=5 \&\\$51361 . ie "\\$3"" .ul 10001362 . el .ul 11363 . if \\n(.$=3 \&\\$31364 . if \\n(.$>3 \&\\$3\\c1365 . if \\n(.$>3 \&\\$41366 . hy \\n(HY\}1367 ..1368 . \"B - bold font1369 .de B1370 .OF 3 \\f3 "\\$1" "\\$2" "\\$3"1371 ..1372 .de BI \" bold italic -- only on 2021373 .OF 4 \\f4 "\\$1" "\\$2" "\\$3"1374 ..1375 . \"R - Roman font1376 .de R1377 .nr PQ \\n(.f1378 .ft 11379 .ie \\n(.$>0 \&\\$1\f\\n(PQ\\$21380 .el .if n .ul 01381 ..1382 . \"I - italic font1383 .de I1384 .OF 2 \\f2 "\\$1" "\\$2" "\\$3"1385 ..1386 . \"CW - constant width font1387 .de CW1388 .nr PQ \\n(.f1389 .if t .if \\n(.$>0 \%\&\\$3\f(CW\\$1\f\\n(PQ\&\\$21390 .if t .if \\n(.$=0 .OF CW \\f(CW "\\$1" "\\$2" "\\$3"1391 .if n .OF CW \\f(CW "\\$1" "\\$2" "\\$3"1392 ..1393 . \"TA - tabs set in ens or chars1394 .de TA1395 .ta \\$1n \\$2n \\$3n \\$4n \\$5n \\$6n \\$7n \\$8n \\$9n1396 ..1397 . \"SM - make smaller size1398 .de SM1399 .ie \\n(.$ \&\\$3\s-2\\$1\s0\\$21400 .el .ps -21401 ..1402 . \"LG - make larger size1403 .de LG1404 .ps +21405 ..1406 . \"NL - return to normal size1407 .de NL1408 .ps \\n(PS1409 ..1410 . \"DA - force date; 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