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'luxisans'\{\248 . fp 1 R LuxiSans249 . fp 2 I LuxiSans-Oblique250 . fp 3 B LuxiSans-Bold251 . fp 4 BI LuxiSans-BoldOblique252 . fp 5 CW LuxiMono\}253 .if '\\$1'dejavu'\{\254 . fp 1 R DejaVuSerif255 . fp 2 I DejaVuSerifOblique256 . fp 3 B DejaVuSerifBold257 . fp 4 BI DejaVuSerifBoldOblique258 . fp 5 CW DejaVuMonoSans\}259 .if '\\$1'dejavusans'\{\260 . fp 1 R DejaVuSans261 . fp 2 I DejaVuSansOblique262 . fp 3 B DejaVuSansBold263 . fp 4 BI DejaVuSansBoldOblique264 . fp 5 CW DejaVuMonoSans\}265 .if '\\$1'syntax'\{\266 . fp 1 R Syntax267 . fp 2 I SyntaxI268 . fp 3 B SyntaxB269 . fp 5 CW LucidaCW\}270 .if '\\$1'century'\{\271 . ie '\\*(.T'202'\{\272 . fp 1 NR Centsb273 . fp 2 NI CentI274 . fp 3 NB CentB275 . fp 4 NX CentBI\}276 . el \{\277 . fp 1 NR278 . fp 2 NI279 . fp 3 NB280 . fp 4 NX\}\}281 .if '\\$1'helvetica'\{\282 . fp 1 H283 . fp 2 HI284 . fp 3 HB285 . fp 4 HX\}286 .if '\\$1'bembo'\{\287 . ie '\\*(.T'202'\{\288 . fp 1 B1 Bembo289 . fp 2 B2 BemboI290 . fp 3 B3 BemboB291 . fp 4 B4 BemboBI\}292 . el \{\293 . fp 1 B1294 . fp 2 B2295 . fp 3 B3296 . fp 4 B4\}\}297 .if '\\$1'optima'\{\298 . fp 1 R Optima299 . fp 2 I OptimaI300 . fp 3 B OptimaB301 . fp 4 BI OptimaBI\}302 .if '\\$1'souvenir'\{\303 . fp 1 R Souvenir304 . fp 2 I SouvenirI305 . fp 3 B SouvenirB306 . fp 4 BI SouvenirBI\}307 .if '\\$1'melior'\{\308 . fp 1 R Melior309 . fp 2 I MeliorI310 . fp 3 B MeliorB311 . fp 4 BI MeliorBI\}312 .if '\\$1'times'\{\313 . fp 1 R314 . fp 2 I315 . fp 3 B316 . fp 4 BI\}317 ..318 . \"TL - title and initialization319 .de TL320 .br321 .nr TV 1322 .if \\n(IM .rm CS323 .if \\n(MN .rm CS324 .ME325 .rm ME326 .di WT327 .na328 .fi329 .ie h .ll \\n(LLu330 .el \{\331 .ll 5.0i332 .if n .if \\n(TN .ll 29333 .if t .if \\n(TN .ll 3.5i \}334 .ft 3335 .ps \\n(PS336 .if !\\n(TN \{\337 . ps +2338 . vs \\n(.s+2339 . rm CS\}340 .hy 0341 .if h .ce 999342 ..343 .de TX344 .rs345 .sp .5i346 .ce 1000347 .if n .ul 1000348 .ps 12349 .ft 3350 .vs 15p351 .ne 4352 .hy 0353 .WT354 .hy \\n(HY355 .ce 0356 .ul 0357 ..358 . \" AU - author(s)359 .de AU360 .nr AV 1361 .ad \\n(SJ362 .br363 .di364 .br365 .nf366 .nr NA +1367 .ds R\\n(NA \\$1368 .ds E\\n(NA \\$2369 .di A\\n(NA370 .ll \\n(LLu371 .ie t \{\372 . ie !\\n(TN .ft 2373 . el \{\374 . ft 3375 . ll 1.4i\}\}376 .el \{\377 . ie !\\n(TN .ft 1378 . el \{\379 . ft 3380 . ll 16\}\}381 .ps \\n(PS382 .if h .ce 999383 ..384 .de AX385 .ft 1386 .rs387 .ce 1000388 .if n .ul 0389 .ps \\n(PS390 .ie \\n(VS>=41 .vs \\n(VSu391 .el .vs \\n(VSp392 .if t \{\393 . sp394 . A1395 . sp 0.5396 . ns397 . I1398 . if \\n(NA-1 .sp399 . A2400 . if \\n(NA-1 .sp 0.5401 . ns402 . I2403 . if \\n(NA-2 .sp404 . A3405 . if \\n(NA-2 .sp 0.5406 . ns407 . I3408 . if \\n(NA-3 .sp409 . A4410 . if \\n(NA-3 .sp 0.5411 . ns412 . I4413 . if \\n(NA-4 .sp414 . A5415 . if \\n(NA-4 .sp 0.5416 . ns417 . I5418 . if \\n(NA-5 .sp419 . A6420 . if \\n(NA-5 .sp 0.5421 . ns422 . I6423 . if \\n(NA-6 .sp424 . A7425 . if \\n(NA-6 .sp 0.5426 . ns427 . I7428 . if \\n(NA-7 .sp429 . A8430 . if \\n(NA-7 .sp 0.5431 . ns432 . I8433 . if \\n(NA-8 .sp434 . A9435 . if \\n(NA-8 .sp 0.5436 . ns437 . I9\}438 .if n \{\439 . sp 2440 . A1441 . sp442 . ns443 . I1444 . if \\n(NA-1 .sp 2445 . A2446 . if \\n(NA-1 .sp447 . ns448 . I2449 . if \\n(NA-2 .sp 2450 . A3451 . if \\n(NA-2 .sp452 . ns453 . I3454 . if \\n(NA-3 .sp 2455 . A4456 . if \\n(NA-3 .sp457 . ns458 . I4459 . if \\n(NA-4 .sp 2460 . A5461 . if \\n(NA-4 .sp462 . ns463 . I5464 . if \\n(NA-5 .sp 2465 . A6466 . if \\n(NA-5 .sp467 . ns468 . I6469 . if \\n(NA-6 .sp 2470 . A7471 . if \\n(NA-6 .sp472 . ns473 . I7474 . if \\n(NA-7 .sp 2475 . A8476 . if \\n(NA-7 .sp477 . ns478 . I8479 . if \\n(NA-8 .sp 2480 . A9481 . if \\n(NA-8 .sp482 . ns483 . I9\}484 ..485 . \"AI - authors institution486 .de AI487 .br488 .ft 1489 .di490 .di I\\n(NA491 .nf492 ..493 . \"AB - begin an abstract494 .de AB495 .br496 .di497 .ul 0498 .ce 0499 .nr 1T 1500 .nr IK 1501 .nr KI 1502 .di WB503 .rs504 .nr AJ 1505 .ce 1506 .ft 2507 .if n .ul508 .ll \\n(LLu509 .ie \\n(.$ \{\510 . if !"\\$1"-" .if !"\\$1"no" \\$1511 . if !"\\$1"-" .if !"\\$1"no" .sp\}512 .el \{\513 ABSTRACT514 .sp\}515 .hy \\n(HY516 .ul 0517 .ce 0518 .fi519 .ft 1520 .nr OJ \\n(.i521 .in +\\n(.lu/12u522 .ll -\\n(.lu/12u523 .br524 .ps \\n(PS525 .ie \\n(VS>=41 .vs \\n(VSu526 .el .vs \\n(VSp527 .ti +\\n(PIu528 .fi529 ..530 . \"AE - end of an abstract531 .de AE532 .br533 .di534 .ll \\n(LLu535 .ps \\n(PS536 .ie \\n(VS>=41 .vs \\n(VSu537 .el .vs \\n(VSp538 .nr 1T 0539 .nr IK 0540 .in \\n(OJu541 .nr AJ 0542 .di543 .ce 0544 .if \\n(ST=2 .SY545 .if \\n(ST<3 .rm SY546 ..547 . \"S2 - release paper style548 . \"SY - cover sheet of released paper549 .de SY550 .ll \\n(LLu551 .ns552 .if \\n(TV .TX553 .if \\n(AV .AX554 .rs555 .ce 0556 .nf557 .sp 3558 .ls 1559 .pn 2560 .WB561 .ls562 .sp 3v563 \\*(DY564 .sp |9i565 .if \\n(FP .FA566 .FG567 .if \\n(GA=1 .nr GA 2568 .fi569 ..570 . \"S2 - first text page, released paper format571 .de S2572 .ce 0573 .br574 .SY575 .rm SY576 .bp 1577 .if \\n(TV .TX578 .if \\n(AV .AX579 .rs580 .ce 0581 .ft 1582 .ad \\n(SJ583 ..584 . \"S0- mike lesk conserve paper style585 .de S0586 .ce 0587 .br588 .ll \\n(LLu589 .if \\n(TV+\\n(AV .ns590 .if \\n(TV .TX591 .if \\n(AV .AX592 .if \\n(TV+\\n(AV .rs593 .ce 0594 .if \\n(TV .sp 2595 .ls 1596 .if \\n(FP \{\597 . FJ598 . nf599 . FG600 . fi601 . FK602 . nr FP 0\}603 .nf604 .WB605 .ls606 .fi607 .ad \\n(SJ608 ..609 . \"S3 - CSTR style610 .de S3611 .rs612 .sp |2.25i613 .ce 1000614 .I1615 .if \\n(NA>1 \{\616 . sp .5617 . I2\}618 .if \\n(NA>2 \{\619 . sp .5620 . I3\}621 .if \\n(NA>3 \{\622 . sp .5623 . I4\}624 .if \\n(NA>4 \{\625 . sp .5626 . I5\}627 .if \\n(NA>5 \{\628 . sp .5629 . I6\}630 .if \\n(NA>6 \{\631 . sp .5632 . I7\}633 .if \\n(NA>7 \{\634 . sp .5635 . I8\}636 .if \\n(NA>8 \{\637 . sp .5638 . I9\}639 .sp |4i640 . \"check how long title is: can space extra .25 inch if short641 .di EZ642 .WT643 .di644 .if \\n(dn<1.5v .if \\n(NA=1 .sp .25i645 .ft 1646 Computing Science Technical Report No. \\*(MN647 .sp648 .if t .ft 3649 .if n .ul 100650 .ps 12651 .vs 15p652 .hy 0653 .WT654 .hy \\n(HY655 .ft 1656 .if n .ul 0657 .ps 10658 .vs 12p659 .sp660 .ft 1661 .A1662 .A2663 .A3664 .A4665 .A5666 .A6667 .A7668 .A8669 .A9670 .ce 0671 .sp |8.5i672 .ce 0673 \\*(DY674 .DZ675 .bp 0676 .ft 1677 .S2678 ..679 . \"SG - signature680 .de SG681 .br682 .KS683 .in +2u*\\n(.lu/3u684 .sp 4685 .A1686 .if \\n(NA>1 .sp 4687 .A2688 .if \\n(NA>2 .sp 4689 .A3690 .if \\n(NA>3 .sp 4691 .A4692 .if \\n(NA>4 .sp 4693 .A5694 .if \\n(NA>5 .sp 4695 .A6696 .if \\n(NA>6 .sp 4697 .A7698 .if \\n(NA>7 .sp 4699 .A8700 .if \\n(NA>8 .sp 4701 .A9702 .in703 .nf704 .if \\n(.$<1 .G9705 .sp -1706 .if \\n(.$>=1 \\$1707 .if \\n(.$>=2 \\$2708 .if \\n(.$>=3 \\$3709 .if \\n(.$>=4 \\$4710 .if \\n(.$>=5 \\$5711 .if \\n(.$>=6 \\$6712 .if \\n(.$>=7 \\$7713 .if \\n(.$>=8 \\$8714 .if \\n(.$>=9 \\$9715 .fi716 .br717 .KE718 ..719 . \"Tables. TS - table start, TE - table end720 .de TS721 .br722 .if !\\n(1T .RT723 .ul 0724 .ti \\n(.iu725 .if t .sp 0.5726 .if n .sp727 .if \\$1H .TQ728 .nr IX 1729 ..730 .if h \{\731 .de TS732 .nr tp -1 1733 .ds tp x\\n+(tp.png734 .html - <center><img src="\\*(tp"></center>735 .dp .TE troff2png >\\*(tp736 ..737 .\}738 .de TQ739 .di TT740 .nr IT 1741 ..742 .de TH743 .if \\n(.d>0.5v \{\744 . nr T. 0745 . T# 0\}746 .di747 .nr TQ \\n(.i748 .nr HT 1749 .in 0750 .mk #a751 .mk #b752 .mk #c753 .mk #d754 .mk #e755 .mk #f756 .TT757 .in \\n(TQu758 .mk #T759 ..760 .de TE761 .nr IX 0762 .if \\n(IT .if !\\n(HT \{\763 . di764 . nr EF \\n(.u765 . nf766 . TT767 . if \\n(EF .fi\}768 .nr IT 0769 .nr HT 0770 .if n .sp 1771 .if t .sp 0.5772 .rm a+ b+ c+ d+ e+ f+ g+ h+ i+ j+ k+ l+ n+ m+773 .rr 32 33 34 35 36 37 38 40 79 80 81 82774 .rr a| b| c| d| e| f| g| h| i| j| k| l| m|775 .rr a- b- c- d- e- f- g- h- i- j- k- l- m-776 ..777 .so \*(sd/tmac.skeep778 .de EQ \"equation, breakout and display779 .nr EF \\n(.u780 .rm EE781 .nr LE 1 \" 1 is center782 .ds EL \\$1783 .if "\\$1"L" \{\784 . ds EL \\$2785 . nr LE 0\}786 .if "\\$1"C" .ds EL \\$2787 .if "\\$1"R" \{\788 . ds EL \\$2 \" 2 is right adjust789 . nr LE 2\}790 .if "\\$1"I" \{\791 . nr LE 0792 . if "\\$3"" .ds EE \\h'|10n'793 . el .ds EE \\h'\\$3'794 . ds EL \\$2\}795 .if \\n(YE .nf796 .di EZ797 ..798 .de EN \" end of a displayed equation799 .br800 .di801 .rm EZ802 .nr ZN \\n(dn803 .if \\n(ZN .if !\\n(YE .LP804 .if !\\n(ZN .if !"\\*(EL"" .nr ZN 1805 .if \\n(ZN \{\806 . ie "\\n(.z"" \{\807 . if t .if !\\n(nl=\\n(PE .sp .5808 . if n .if !\\n(nl=\\n(PE .sp 1\}809 . el \{\810 . if t .if !\\n(.d=\\n(PE .sp .5811 . if n .if !\\n(.d=\\n(PE .sp 1\}\}812 'pc813 .if \\n(BD .nr LE 0 \" don't center if block display or mark/lineup814 .if \\n(MK \{\815 . if \\n(LE=1 .ds EE \\h'|10n'816 . nr LE 0\}817 'lt \\n(.lu818 .if !\\n(EP .if \\n(ZN \{\819 . if \\n(LE=1 .tl \(ts\(ts\\*(10\(ts\\*(EL\(ts820 . if \\n(LE=2 .tl \(ts\(ts\(ts\\*(10\\*(EL\(ts821 . if !\\n(LE \{\822 . if !\\n(BD .tl \(ts\\*(EE\\*(10\(ts\(ts\\*(EL\(ts823 . if \\n(BD .if \\n(BD<\\w\(ts\\*(10\(ts .nr BD \\w\(ts\\*(10\(ts824 . if \\n(BD \!\\*(10\\t\\*(EL\}\}825 .if \\n(EP .if \\n(ZN \{\826 . if \\n(LE=1 .tl \(ts\\*(EL\(ts\\*(10\(ts\(ts827 . if \\n(LE=2 .tl \(ts\\*(EL\(ts\(ts\\*(10\(ts828 . if !\\n(LE \{\829 . if !\\n(BD .tl \(ts\\*(EL\\*(EE\\*(10\(ts\(ts\(ts830 . if \\n(BD .if \\n(BD<\\w\(ts\\*(10\(ts .nr BD \\w\(ts\\*(10\(ts831 . if \\n(BD \!\\h'-\\\\n(.iu'\\*(EL\\h'|0'\\*(10\}\}832 'lt \\n(LLu833 'pc %834 .if \\n(YE .if \\n(EF .fi835 .if t .if \\n(ZN .sp .5836 .if n .if \\n(ZN .sp837 .ie "\\n(.z"" .nr PE \\n(nl838 .el .nr PE \\n(.d839 ..840 .de PS \" start picture841 . \" $1 is height, $2 is width, both in inches842 .if \\$1>0 .sp .35843 .ie \\$1>0 .nr $1 \\$1844 .el .nr $1 0845 .in (\\n(.lu-\\$2)/2u846 .ne \\$1847 ..848 .de PE \" end of picture849 .in850 .if \\n($1>0 .sp .65851 ..852 .if h \{\853 .de PS854 .nr tp -1 1855 .ds tp x\\n+(tp.png856 .html - <center><img src="\\*(tp" /></center>857 .dp .PE troff2png >\\*(tp858 ..859 .\}860 . \" .P1/.P2 macros for programs861 .862 .nr XP 1 \" delta point size for program863 .if h .nr XP 0864 .nr XV 1p \" delta vertical for programs865 .nr XT 8 \" delta tab stop for programs866 .nr DV .5v \" space before start of program867 .868 .de P1869 .nr P1 .4i \" program indent in .P1870 .nr OI .4i871 .if \\n(.$ .nr P1 \\$1872 .br873 .nr v \\n(.v874 .di p1875 .in +\\n(P1u876 .nf877 .ps -\\n(XP878 .vs -\\n(XVu879 .nr xx \\n(.sp880 .ft CW881 .nr t \\n(XT*\\w'x'u882 .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*\\ntu883 ..884 .885 .de P2886 .br887 .ps \\n(PS888 .vs \\n(VSp889 .vs \\nvu890 .ft 1891 .in892 .di893 .br894 .sp \\n(DVu895 .br896 .if \\n(.$=0 .ne \\n(dnu \" -\\n(DVu897 .nf898 .p1899 .sp \\n(DVu900 .br901 .fi902 ..903 .904 .de ME905 .nr SJ \\n(.j906 .if \\n(LL .nr LT \\n(LL907 .nr YE 1908 .if !\\n(PO .nr PO \\n(.o909 .if \\n(mo-0 .ds MO January910 .if \\n(mo-1 .ds MO February911 .if \\n(mo-2 .ds MO March912 .if \\n(mo-3 .ds MO April913 .if \\n(mo-4 .ds MO May914 .if \\n(mo-5 .ds MO June915 .if \\n(mo-6 .ds MO July916 .if \\n(mo-7 .ds MO August917 .if \\n(mo-8 .ds MO September918 .if \\n(mo-9 .ds MO October919 .if \\n(mo-10 .ds MO November920 .if \\n(mo-11 .ds MO December921 .if \\n(dw-0 .ds DW Sunday922 .if \\n(dw-1 .ds DW Monday923 .if \\n(dw-2 .ds DW Tuesday924 .if \\n(dw-3 .ds DW Wednesday925 .if \\n(dw-4 .ds DW Thursday926 .if \\n(dw-5 .ds DW Friday927 .if \\n(dw-6 .ds DW Saturday928 .nr yP (\\n(yr+2000)/100)929 .nr yD (\\n(yr%100930 .af yD 01931 .if "\\*(DY"" .ds DY \\*(MO \\n(dy, \\n(yP\\n(yD932 .if "\\*(CF"" .if n .ds CF "\\*(DY933 ..934 . \"EM end up macro - process left over keep-release935 .de EM936 .br937 .if \\n(AJ .tm Syntax error: no .AE938 .if \\n(IF .ab Missing .FE somewhere939 .if t .if \\n(TB=0 .wh -1p CM940 .if \\n(TB \{\&\c941 ' bp942 . NP943 . ch CM 160\}944 ..945 . \"NP new page946 .de NP947 .rr PE948 .if \\n(FM+\\n(HM>=\\n(.p \{\949 . tm Margins bigger than page length.950 . ab951 . ex\}952 .if t .CM953 .if !\\n(HM .nr HM 1i954 'sp \\n(HMu/2u955 .ev 1956 .nr PX \\n(.s957 .nr PF \\n(.f958 .nr PV \\n(.v959 .lt \\n(LTu960 .ps \\n(PS961 .vs \\n(PS+2962 .ft 1963 .if \\n(PO .po \\n(POu964 .PT965 .ps \\n(PX966 .vs \\n(PVu967 .ft \\n(PF968 .ev969 'sp |\\n(HMu970 .nr XX 0 1971 .nr YY 0-\\n(FMu972 .ch FO 16i973 .ch FX 17i974 .ch FO \\n(.pu-\\n(FMu975 .ch FX \\n(.pu-\\n(FMu976 .if \\n(MF .FV977 .nr MF 0978 .mk979 .os980 .ev 1981 .if !\\n(TD .if \\n(TC<5 .XK982 .nr TC 0983 .ns984 .ev985 .nr TQ \\n(.i986 .nr TK \\n(.u987 .if \\n(IT \{\988 . in 0989 . nf990 . TT991 . in \\n(TQu992 . if \\n(TK .fi\993 \}994 .mk #T995 ....if t .if \\n(.o+\\n(LL>7.75i .tm Offset + line length exceeds 7.75 inches, too wide996 ..997 .de XK998 .nr TD 1999 .nf1000 .ls 11001 .in 01002 .rn KJ KL1003 .KL1004 .rm KL1005 .if "\\n(.z"KJ" .di1006 .nr TB 01007 .if "\\n(.z"KJ" .nr TB 11008 .br1009 .in1010 .ls1011 .fi1012 .if (\\n(nl+1v)>(\\n(.p-\\n(FM) \{\1013 . if \\n(NX>1 .RC1014 . if \\n(NX<1 .bp\}1015 .nr TD 01016 ..1017 .de KD1018 .nr KM 01019 .if "\\n(.z"" .if \\$2>0 .if \\n(nl>\\n(HM \{\1020 . if (\\n(nl+1v)<(\\n(.p-\\n(FM) .di KJ \" full page figure must have new page1021 . sp 15i\}1022 .if "\\n(.z"" .if \\n(nl>\\n(HM .if \\$2=0 .if (\\n(nl+1v)>(\\n(.p-\\n(FM) .sp 15i1023 .if "\\n(.z"KJ" .nr KM 1 \" KM is 1 if in a rediversion of keeps1024 .if \\n(KM>0 \!.KD \\$1 \\$21025 .nr KR \\n(.t1026 .if \\n(nl<=\\n(HM .nr KR 327671027 .if \\n(KM=0 \{\1028 . if \\n(KR<\\$1 \{\1029 . di KJ1030 . nr KM 1\}1031 . if \\$2>0 .if (\\n(nl+1v)>(\\n(.p-\\n(FM) .sp 15i\}1032 .rs1033 .if \\n(KM=0 .if \\$2>0 .sp \\n(.tu-\\$1u1034 ..1035 .de PT1036 .lt \\n(LLu1037 .pc %1038 .nr PN \\n%1039 .if \\n%-1 .tl '\\*(LH'\\*(CH'\\*(RH'1040 .lt \\n(.lu1041 ..1042 . \"FO - footer of page1043 .de FO1044 .rn FO FZ1045 .if \\n(IT>0 \{\1046 . nr T. 11047 . if \\n(FC=0 .T# 11048 . br\}1049 .nr FC +11050 .if \\n(NX<2 .nr WF 01051 .nr dn 01052 .if \\n(FC<=1 .if \\n(XX .XF1053 .rn FZ FO1054 .nr MF 01055 .if \\n(dn .nr MF 11056 .if !\\n(WF \{\1057 . nr YY 0-\\n(FMu1058 . ch FO \\n(YYu\}1059 .if !\\n(dn .nr WF 01060 .if \\n(FC<=1 .if \\n(XX=0 \{\1061 . if \\n(NX>1 .RC1062 . if \\n(NX<1 'bp\}1063 .nr FC -11064 .if \\n(ML>0 .ne \\n(MLu1065 ..1066 . \"2C - begin double column1067 .de 2C1068 .MC \" default MC is double column1069 ..1070 .de MC \" multiple columns- arg is line length1071 .nr L1 \\n(LL*7/151072 .if \\n(CW>=0 .nr L1 \\n(CWu1073 .if \\n(.$ .nr L1 \\$1n1074 .if \\n(GW>=0 .nr GW \\n(GWu1075 .if \\n(.$>1 .nr GW \\$2n1076 .nr NQ \\n(LL/\\n(L11077 .if \\n(NQ<1 .nr NQ 11078 .if \\n(NQ>2 .if (\\n(LL%\\n(L1)=0 .nr NQ -11079 .if !\\n(1T \{\1080 . BG1081 . if n .sp 41082 . if t .sp 2\}1083 .if \\n(NX=0 .nr NX 11084 .if !\\n(NX=\\n(NQ \{\1085 . RT1086 . if \\n(NX>1 .bp1087 . mk1088 . nr NC 11089 . po \\n(POu\}1090 .if \\n(NQ>1 .hy \\n(HY1091 .nr NX \\n(NQ1092 .if \\n(NX>1 .nr CW \\n(L11093 .ll \\n(L1u1094 .nr FL \\n(L1u*11u/12u1095 .if \\n(NX>1 .if \\n(GW<0 .nr GW (\\n(LL-(\\n(NX*\\n(L1))/(\\n(NX-1)1096 .nr RO \\n(L1+\\n(GW1097 .ns1098 ..1099 .de RC1100 .ie \\n(NC>=\\n(NX .C21101 .el .C11102 ..1103 .de C11104 .rt1105 .po +\\n(ROu1106 .nr NC +11107 .if \\n(NC>\\n(NX .nr NC 11108 .nr XX 0 11109 .nr YY 0-\\n(FMu1110 .if \\n(MF .FV1111 .ch FX \\n(.pu-\\n(FMu1112 .ev 11113 .if \\n(TB .XK1114 .nr TC 01115 .ev1116 .nr TQ \\n(.i1117 .if \\n(IT \{\1118 . in 01119 . TT1120 . in \\n(TQu\}1121 .mk #T1122 .ns1123 ..1124 .de C21125 .po \\n(POu1126 .nr NC +11127 .if \\n(NC>\\n(NX .nr NC 11128 'bp1129 ..1130 . \"1C - return to single column format1131 .de 1C1132 .MC \\n(LLu1133 .hy \\n(HY1134 ..1135 .de MH1136 Bell Laboratories1137 Murray Hill, New Jersey 079741138 ..1139 .de PY1140 Bell Laboratories1141 Piscataway, New Jersey 088541142 ..1143 .de BT1144 .nr PX \\n(.s1145 .nr PF \\n(.f1146 .ft 11147 .ps \\n(PS1148 'lt \\n(LTu1149 .po \\n(POu1150 .if \\n%>0 .tl \(ts\\*(LF\(ts\\*(CF\(ts\\*(RF\(ts1151 .ft \\n(PF1152 .ps \\n(PX1153 ..1154 . \"PP - paragraph1155 .de PP1156 .RT1157 .if \\n(1T .sp \\n(PDu1158 .ti +\\n(PIu1159 ..1160 . \"SH - (unnumbered) section heading1161 .de SH1162 .ti \\n(.iu1163 .RT1164 .ie \\n(1T .sp 11165 .el .BG1166 .RT1167 .ne 41168 .ft 31169 .if n .ul 10001170 ..1171 . \"NH - numbered heading1172 .de N{1173 .RT1174 .ie \\n(1T .sp 11175 .el .BG1176 .RT1177 .ne 41178 .ft 31179 .if n .ul 10001180 .nr NS \\$11181 .if !\\n(.$ .nr NS 11182 .if !\\n(NS .nr NS 11183 .nr H\\n(NS +11184 .if !\\n(NS-4 .nr H5 01185 .if !\\n(NS-3 .nr H4 01186 .if !\\n(NS-2 .nr H3 01187 .if !\\n(NS-1 .nr H2 01188 .if !\\$1 .if \\n(.$ .nr H1 11189 .ds SN \\n(H1.1190 .ti \\n(.iu1191 .if \\n(NS-1 .as SN \\n(H2.1192 .if \\n(NS-2 .as SN \\n(H3.1193 .if \\n(NS-3 .as SN \\n(H4.1194 .if \\n(NS-4 .as SN \\n(H5.1195 ..1196 .de NH1197 .N{ \\$11198 \\*(SN1199 ..1200 . \"BG - begin, execute at first PP1201 .de BG1202 .br1203 .ME1204 .rm ME1205 .di1206 .ce 01207 .nr KI 01208 .hy \\n(HY1209 .nr 1T 11210 .nr CS 01211 .S\\n(ST1212 .rm S0 S1 S2 S3 OD OK TX AX WT CS TM IM MF MR RP I1 I2 I3 I4 I5 CB E1 E21213 .de TL1214 .ft 31215 .sp1216 .if n .ul 1001217 .ce 1001218 .ps +21219 \\..1220 .de AU1221 .ft 21222 .if n .ul 01223 .ce 1001224 .sp1225 .NL1226 \\..1227 .de AI1228 .ft 11229 .ce 1001230 .if n .ul 01231 .if n .sp1232 .if t .sp .51233 .NL1234 \\..1235 .RA1236 .rm RA1237 .rn FJ FS1238 .rn FK FE1239 .nf1240 .ev 11241 .ps \\n(PS-21242 .vs \\n(.s+2p1243 .ev1244 .if !\\n(KG .nr FP 01245 .if \\n(GA>1 .if \\n(KG=0 .nr GA 0 \" next UNIX must be flagged.1246 .nr KG 01247 .if \\n(FP \{\1248 . FS1249 . FG1250 . FE\}1251 .br1252 .if n .if \\n(TV .sp 21253 .if t .if \\n(TV .sp 11254 .fi1255 .ll \\n(LLu1256 .ev 11257 .if !\\n(FL .nr FL \\n(LLu*11u/12u1258 .ll \\n(FLu1259 .ev1260 ..1261 .de RA \"redefine abstract macros1262 .de AB1263 .br1264 .if !\\n(1T .BG1265 .ce 11266 .sp 11267 .ie \\n(.$ \{\1268 . if !"\\$1"-" .if !"\\$1"no" \{\1269 \\$11270 .sp\}\}1271 .el \{\1272 ABSTRACT1273 .sp\}1274 .sp 11275 .nr AJ 11276 .in +\\n(.lu/12u1277 .ll -\\n(.lu/12u1278 .RT1279 \\..1280 .de AE1281 .nr AJ 01282 .br1283 .in 01284 .ll \\n(LLu1285 .ie \\n(VS>=41 .vs \\n(VSu1286 .el .vs \\n(VSp1287 \\..1288 ..1289 . \"IP - indented paragraph1290 .de IP1291 .RT1292 .if !\\n(IP .nr IP +11293 .ie \\n(ID>0 .sp \\n(IDu1294 .el .sp \\n(PDu1295 .nr IU \\n(IR+11296 .if \\n(.$>1 .nr I\\n(IU \\$2n+\\n(I\\n(IRu1297 .if \\n(I\\n(IU=0 .nr I\\n(IU \\n(PIu+\\n(I\\n(IRu1298 .in \\n(I\\n(IUu1299 .nr TY \\n(TZ-\\n(.i1300 .nr JQ \\n(I\\n(IU-\\n(I\\n(IR1301 .ta \\n(JQu \\n(TYuR1302 .if \\n(.$ \{\1303 .ti \\n(I\\n(IRu1304 \&\\$1\t\c\}1305 ..1306 . \"LP - left aligned (block) paragraph1307 .de LP1308 .ti \\n(.iu1309 .RT1310 .if \\n(1T .sp \\n(PDu1311 ..1312 .de QP1313 .ti \\n(.iu1314 .RT1315 .if \\n(1T .sp \\n(PDu1316 .ne 1.11317 .nr QP 11318 .in +\\n(QIu1319 .ll -\\n(QIu1320 .ti \\n(.iu1321 ..1322 . \"IE - synonym for .LP1323 .de IE1324 .LP1325 ..1326 . \"RS - prepare for double indenting1327 .de RS1328 .nr IS \\n(IP1329 .RT1330 .nr IP \\n(IS1331 .nr IU \\n(IR1332 .nr IR +11333 .if !\\n(I\\n(IR .nr I\\n(IR \\n(I\\n(IU+\\n(PIu1334 .in \\n(I\\n(IRu1335 .nr TY \\n(TZ-\\n(.i1336 .ta \\n(TYuR1337 ..1338 . \"RE - retreat to the left1339 .de RE1340 .nr IS \\n(IP1341 .RT1342 .nr IP \\n(IS1343 .if \\n(IR>0 .nr IR -11344 .in \\n(I\\n(IRu1345 ..1346 .de TC1347 .nr TZ \\n(.lu1348 .if \\n(.$ .nr TZ \\$1n1349 .ta \\n(TZuR1350 ..1351 .de TD1352 .LP1353 .nr TZ 01354 ..1355 . \"CM - cut mark1356 .de CM1357 .po 01358 .lt 7.6i1359 .ft 11360 .ps 101361 .vs 4p1362 .if "\\*(.T"aps" .tl '--''--'1363 .po1364 .vs1365 .lt1366 .ps1367 .ft1368 ..1369 . \" fontname(CW) fontstr(\f(CW) first_arg goes_after goes_before1370 .de OF \" this is completely WRONG if any argument contains "'s1371 .nr PQ \\n(.f1372 .hy 01373 .if t .if "\\$3"" .ft \\$11374 .if t .if !"\\$3"" \{\1375 \&\\$5\\$2\\$3\\f\\n(PQ\\$41376 .hy \\n(HY\}1377 .if n \{\1378 . if \\n(.$=5 \&\\$51379 . ie "\\$3"" .ul 10001380 . el .ul 11381 . if \\n(.$=3 \&\\$31382 . if \\n(.$>3 \&\\$3\\c1383 . if \\n(.$>3 \&\\$41384 . hy \\n(HY\}1385 ..1386 . \"B - bold font1387 .de B1388 .OF 3 \\f3 "\\$1" "\\$2" "\\$3"1389 ..1390 .de BI \" bold italic -- only on 2021391 .OF 4 \\f4 "\\$1" "\\$2" "\\$3"1392 ..1393 . \"R - Roman font1394 .de R1395 .nr PQ \\n(.f1396 .ft 11397 .ie \\n(.$>0 \&\\$1\f\\n(PQ\\$21398 .el .if n .ul 01399 ..1400 . \"I - italic font1401 .de I1402 .OF 2 \\f2 "\\$1" "\\$2" "\\$3"1403 ..1404 . \"CW - constant width font1405 .de CW1406 .nr PQ \\n(.f1407 .if t .if \\n(.$>0 \%\&\\$3\f(CW\\$1\f\\n(PQ\&\\$21408 .if t .if \\n(.$=0 .OF CW \\f(CW "\\$1" "\\$2" "\\$3"1409 .if n .OF CW \\f(CW "\\$1" "\\$2" "\\$3"1410 ..1411 . \"TA - tabs set in ens or chars1412 .de TA1413 .ta \\$1n \\$2n \\$3n \\$4n \\$5n \\$6n \\$7n \\$8n \\$9n1414 ..1415 . \"SM - make smaller size1416 .de SM1417 .ie \\n(.$ \&\\$3\s-2\\$1\s0\\$21418 .el .ps -21419 ..1420 . \"LG - make larger size1421 .de LG1422 .ps +21423 ..1424 . \"NL - return to normal size1425 .de NL1426 .ps \\n(PS1427 ..1428 . \"DA - force date; 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