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|00000000| 5c 63 68 61 70 74 65 72 | 7b 49 6e 74 72 6f 64 75 |\chapter|{Introdu|
|00000010| 63 74 69 6f 6e 7d 0d 0d | 5c 52 4c 61 42 5c 20 69 |ction}..|\RLaB\ i|
|00000020| 73 20 61 6e 20 69 6e 74 | 65 72 61 63 74 69 76 65 |s an int|eractive|
|00000030| 20 6f 72 20 62 61 74 63 | 68 20 6d 6f 64 65 20 6d | or batc|h mode m|
|00000040| 61 74 72 69 78 2d 6f 72 | 69 65 6e 74 65 64 20 70 |atrix-or|iented p|
|00000050| 72 6f 67 72 61 6d 6d 69 | 6e 67 0d 6c 61 6e 67 75 |rogrammi|ng.langu|
|00000060| 61 67 65 2e 20 20 49 74 | 20 69 73 20 69 6e 74 65 |age.  It| is inte|
|00000070| 6e 64 65 64 20 66 6f 72 | 20 70 72 6f 74 6f 74 79 |nded for| prototy|
|00000080| 70 69 6e 67 20 61 6e 64 | 20 6f 74 68 65 72 20 74 |ping and| other t|
|00000090| 61 73 6b 73 20 74 68 61 | 74 20 61 72 65 0d 6e 6f |asks tha|t are.no|
|000000a0| 74 20 72 65 61 6c 20 74 | 69 6d 65 2e 20 5c 52 4c |t real t|ime. \RL|
|000000b0| 61 42 5c 20 61 6c 73 6f | 20 73 65 72 76 65 73 20 |aB\ also| serves |
|000000c0| 61 73 20 61 20 63 6f 6e | 76 65 6e 69 65 6e 74 20 |as a con|venient |
|000000d0| 69 6e 74 65 72 66 61 63 | 65 20 74 6f 20 74 68 65 |interfac|e to the|
|000000e0| 0d 4c 41 50 41 43 4b 2c | 20 46 46 54 50 41 43 4b |.LAPACK,| FFTPACK|
|000000f0| 2c 20 61 6e 64 20 52 41 | 4e 4c 49 42 20 6e 75 6d |, and RA|NLIB num|
|00000100| 65 72 69 63 61 6c 20 6c | 69 62 72 61 72 69 65 73 |erical l|ibraries|
|00000110| 20 66 72 6f 6d 20 6e 65 | 74 6c 69 62 2e 0d 0d 0d | from ne|tlib....|
|00000120| 5c 73 65 63 74 69 6f 6e | 7b 49 6e 76 6f 6b 69 6e |\section|{Invokin|
|00000130| 67 20 5c 52 4c 61 42 5c | 20 7d 0d 5c 69 6e 64 65 |g \RLaB\| }.\inde|
|00000140| 78 7b 73 74 61 72 74 69 | 6e 67 20 5c 52 4c 61 42 |x{starti|ng \RLaB|
|00000150| 5c 20 7d 0d 5c 69 6e 64 | 65 78 7b 69 6e 76 6f 6b |\ }.\ind|ex{invok|
|00000160| 69 6e 67 20 5c 52 4c 61 | 42 5c 20 7d 0d 41 20 70 |ing \RLa|B\ }.A p|
|00000170| 72 6f 70 65 72 6c 79 20 | 69 6e 73 74 61 6c 6c 65 |roperly |installe|
|00000180| 64 20 5c 52 4c 61 42 5c | 20 63 61 6e 20 62 65 20 |d \RLaB\| can be |
|00000190| 73 74 61 72 74 65 64 20 | 62 79 20 75 73 69 6e 67 |started |by using|
|000001a0| 20 74 68 65 20 66 6f 6c | 6c 6f 77 69 6e 67 3a 0d | the fol|lowing:.|
|000001b0| 0d 5c 24 5c 20 7b 5c 74 | 74 20 72 6c 61 62 20 52 |.\$\ {\t|t rlab R|
|000001c0| 45 54 55 52 4e 7d 0d 0d | 5c 6e 6f 69 6e 64 65 6e |ETURN}..|\noinden|
|000001d0| 74 20 77 68 65 72 65 20 | 74 65 78 74 20 68 69 67 |t where |text hig|
|000001e0| 68 6c 69 67 68 74 65 64 | 20 6c 69 6b 65 20 7b 5c |hlighted| like {\|
|000001f0| 74 74 20 74 68 69 73 7d | 20 69 73 20 77 68 61 74 |tt this}| is what|
|00000200| 20 79 6f 75 20 65 6e 74 | 65 72 20 61 6e 64 20 7b | you ent|er and {|
|00000210| 5c 74 74 0d 52 45 54 55 | 52 4e 7d 20 6d 65 61 6e |\tt.RETU|RN} mean|
|00000220| 73 20 79 6f 75 20 68 61 | 76 65 20 65 6e 74 65 72 |s you ha|ve enter|
|00000230| 65 64 20 74 68 65 20 5c | 76 65 72 62 2b 72 6c 61 |ed the \|verb+rla|
|00000240| 62 2b 20 63 6f 6d 6d 61 | 6e 64 20 62 79 20 68 69 |b+ comma|nd by hi|
|00000250| 74 74 69 6e 67 20 74 68 | 65 20 7b 5c 74 74 0d 52 |tting th|e {\tt.R|
|00000260| 45 54 55 52 4e 7d 20 6b | 65 79 2e 20 0d 0d 5c 52 |ETURN} k|ey. ..\R|
|00000270| 4c 61 42 5c 20 77 69 6c | 6c 20 73 74 61 72 74 20 |LaB\ wil|l start |
|00000280| 77 69 74 68 20 61 20 6d | 65 73 73 61 67 65 20 73 |with a m|essage s|
|00000290| 69 6d 69 6c 61 72 20 74 | 6f 0d 5c 62 65 67 69 6e |imilar t|o.\begin|
|000002a0| 7b 76 65 72 62 61 74 69 | 6d 7d 0d 57 65 6c 63 6f |{verbati|m}.Welco|
|000002b0| 6d 65 20 74 6f 20 52 4c | 61 42 2e 20 4e 65 77 20 |me to RL|aB. New |
|000002c0| 75 73 65 72 73 20 74 79 | 70 65 20 60 68 65 6c 70 |users ty|pe `help|
|000002d0| 20 49 4e 54 52 4f 27 0d | 52 4c 61 42 20 76 65 72 | INTRO'.|RLaB ver|
|000002e0| 73 69 6f 6e 20 30 2e 39 | 39 62 20 43 6f 70 79 72 |sion 0.9|9b Copyr|
|000002f0| 69 67 68 74 20 28 43 29 | 20 31 39 39 32 2c 20 39 |ight (C)| 1992, 9|
|00000300| 33 2c 20 39 34 20 49 61 | 6e 20 53 65 61 72 6c 65 |3, 94 Ia|n Searle|
|00000310| 0d 52 4c 61 42 20 63 6f | 6d 65 73 20 77 69 74 68 |.RLaB co|mes with|
|00000320| 20 41 42 53 4f 4c 55 54 | 45 4c 59 20 4e 4f 20 57 | ABSOLUT|ELY NO W|
|00000330| 41 52 52 41 4e 54 59 3b | 20 66 6f 72 20 64 65 74 |ARRANTY;| for det|
|00000340| 61 69 6c 73 20 74 79 70 | 65 20 60 68 65 6c 70 20 |ails typ|e `help |
|00000350| 57 41 52 52 41 4e 54 59 | 27 0d 54 68 69 73 20 69 |WARRANTY|'.This i|
|00000360| 73 20 66 72 65 65 20 73 | 6f 66 74 77 61 72 65 2c |s free s|oftware,|
|00000370| 20 61 6e 64 20 79 6f 75 | 20 61 72 65 20 77 65 6c | and you| are wel|
|00000380| 63 6f 6d 65 20 74 6f 20 | 72 65 64 69 73 74 72 69 |come to |redistri|
|00000390| 62 75 74 65 20 69 74 20 | 75 6e 64 65 72 0d 63 65 |bute it |under.ce|
|000003a0| 72 74 61 69 6e 20 63 6f | 6e 64 69 74 69 6f 6e 73 |rtain co|nditions|
|000003b0| 3b 20 74 79 70 65 20 60 | 68 65 6c 70 20 43 4f 4e |; type `|help CON|
|000003c0| 44 49 54 49 4f 4e 53 27 | 20 66 6f 72 20 64 65 74 |DITIONS'| for det|
|000003d0| 61 69 6c 73 0d 3e 20 0d | 5c 65 6e 64 7b 76 65 72 |ails.> .|\end{ver|
|000003e0| 62 61 74 69 6d 7d 0d 0d | 49 66 20 74 68 61 74 20 |batim}..|If that |
|000003f0| 64 69 64 6e 27 74 20 77 | 6f 72 6b 2c 20 74 68 65 |didn't w|ork, the|
|00000400| 6e 20 5c 52 4c 61 42 5c | 20 69 73 20 6e 6f 74 20 |n \RLaB\| is not |
|00000410| 73 65 74 20 75 70 20 70 | 72 6f 70 65 72 6c 79 20 |set up p|roperly |
|00000420| 6f 6e 20 79 6f 75 72 0d | 6d 61 63 68 69 6e 65 2c |on your.|machine,|
|00000430| 20 61 6e 64 20 79 6f 75 | 20 73 68 6f 75 6c 64 20 | and you| should |
|00000440| 74 61 6c 6b 20 74 6f 20 | 79 6f 75 72 20 6c 6f 63 |talk to |your loc|
|00000450| 61 6c 20 20 53 79 73 74 | 65 6d 20 41 64 6d 69 6e |al  Syst|em Admin|
|00000460| 69 73 74 72 61 74 69 6f | 6e 0d 6f 67 72 65 2c 20 |istratio|n.ogre, |
|00000470| 61 6e 64 20 67 65 74 20 | 74 68 65 6d 20 74 6f 20 |and get |them to |
|00000480| 73 65 74 20 69 74 20 75 | 70 2e 20 20 49 66 20 79 |set it u|p.  If y|
|00000490| 6f 75 20 61 72 65 20 74 | 68 65 20 53 79 73 74 65 |ou are t|he Syste|
|000004a0| 6d 20 41 64 6d 69 6e 69 | 73 74 72 61 74 6f 72 0d |m Admini|strator.|
|000004b0| 6f 67 72 65 2c 20 74 68 | 65 6e 20 6c 6f 6f 6b 20 |ogre, th|en look |
|000004c0| 61 74 20 74 68 65 20 5c | 76 65 72 62 2b 52 45 41 |at the \|verb+REA|
|000004d0| 44 4d 45 2e 69 6e 73 74 | 61 6c 6c 2b 20 66 69 6c |DME.inst|all+ fil|
|000004e0| 65 20 69 6e 20 74 68 65 | 20 5c 52 4c 61 42 5c 0d |e in the| \RLaB\.|
|000004f0| 70 61 63 6b 61 67 65 2e | 20 53 65 74 74 69 6e 67 |package.| Setting|
|00000500| 20 75 70 20 5c 52 4c 61 | 42 5c 20 69 73 20 6e 6f | up \RLa|B\ is no|
|00000510| 74 20 64 69 66 66 69 63 | 75 6c 74 2c 20 68 6f 77 |t diffic|ult, how|
|00000520| 65 76 65 72 20 69 74 20 | 69 73 20 62 65 79 6f 6e |ever it |is beyon|
|00000530| 64 20 74 68 65 0d 73 63 | 6f 70 65 20 6f 66 20 74 |d the.sc|ope of t|
|00000540| 68 69 73 20 6d 61 6e 75 | 61 6c 2e 20 0d 0d 49 66 |his manu|al. ..If|
|00000550| 20 74 68 61 74 20 7b 5c | 65 6d 20 64 69 64 7d 20 | that {\|em did} |
|00000560| 77 6f 72 6b 2c 20 6e 6f | 77 20 69 73 20 70 72 6f |work, no|w is pro|
|00000570| 62 61 62 6c 79 20 61 20 | 67 6f 6f 64 20 74 69 6d |bably a |good tim|
|00000580| 65 20 74 6f 20 77 6f 72 | 6b 20 74 68 72 6f 75 67 |e to wor|k throug|
|00000590| 68 20 74 68 65 0d 5c 52 | 4c 61 42 5c 20 50 72 69 |h the.\R|LaB\ Pri|
|000005a0| 6d 65 72 2c 20 77 68 69 | 63 68 20 73 68 6f 75 6c |mer, whi|ch shoul|
|000005b0| 64 20 68 61 76 65 20 63 | 6f 6d 65 20 77 69 74 68 |d have c|ome with|
|000005c0| 20 74 68 69 73 20 6d 61 | 6e 75 61 6c 2e 20 20 54 | this ma|nual.  T|
|000005d0| 68 65 20 50 72 69 6d 65 | 72 0d 69 6e 74 72 6f 64 |he Prime|r.introd|
|000005e0| 75 63 65 73 20 5c 52 4c | 61 42 5c 20 61 6e 64 20 |uces \RL|aB\ and |
|000005f0| 69 73 20 69 6e 74 65 6e | 64 65 64 20 74 6f 20 62 |is inten|ded to b|
|00000600| 65 20 63 6f 6d 70 6c 65 | 6d 65 6e 74 61 72 79 20 |e comple|mentary |
|00000610| 74 6f 20 74 68 69 73 20 | 6d 61 6e 75 61 6c 2e 0d |to this |manual..|
|00000620| 59 6f 75 20 63 61 6e 20 | 67 65 74 20 61 20 67 6f |You can |get a go|
|00000630| 6f 64 20 66 65 65 6c 20 | 66 6f 72 20 74 68 65 20 |od feel |for the |
|00000640| 63 61 70 61 62 69 6c 69 | 74 69 65 73 20 66 72 6f |capabili|ties fro|
|00000650| 6d 20 74 68 65 20 50 72 | 69 6d 65 72 2c 20 61 6e |m the Pr|imer, an|
|00000660| 64 20 74 68 65 0d 68 61 | 72 64 20 64 65 74 61 69 |d the.ha|rd detai|
|00000670| 6c 73 20 66 72 6f 6d 20 | 74 68 65 20 52 65 66 65 |ls from |the Refe|
|00000680| 72 65 6e 63 65 20 4d 61 | 6e 75 61 6c 2e 20 20 53 |rence Ma|nual.  S|
|00000690| 6f 20 67 6f 20 74 6f 20 | 69 74 21 20 54 68 65 20 |o go to |it! The |
|000006a0| 50 72 69 6d 65 72 0d 61 | 77 61 69 74 73 2e 20 49 |Primer.a|waits. I|
|000006b0| 74 20 64 6f 65 73 6e 27 | 74 20 72 65 61 6c 6c 79 |t doesn'|t really|
|000006c0| 20 6d 61 74 74 65 72 20 | 69 66 20 79 6f 75 20 64 | matter |if you d|
|000006d0| 6f 6e 27 74 20 75 6e 64 | 65 72 73 74 61 6e 64 20 |on't und|erstand |
|000006e0| 69 74 20 61 6c 6c 2c 20 | 73 69 6e 63 65 0d 79 6f |it all, |since.yo|
|000006f0| 75 20 63 61 6e 20 67 65 | 74 20 6d 6f 72 65 20 69 |u can ge|t more i|
|00000700| 6e 66 6f 72 6d 61 74 69 | 6f 6e 20 66 72 6f 6d 20 |nformati|on from |
|00000710| 74 68 69 73 20 6d 61 6e | 75 61 6c 2c 20 62 75 74 |this man|ual, but|
|00000720| 20 74 68 69 73 20 6d 61 | 6e 75 61 6c 20 77 69 6c | this ma|nual wil|
|00000730| 6c 20 62 65 0d 61 20 6c | 6f 74 20 65 61 73 69 65 |l be.a l|ot easie|
|00000740| 72 20 69 66 20 79 6f 75 | 20 68 61 76 65 20 64 6f |r if you| have do|
|00000750| 6e 65 20 74 68 65 20 50 | 72 69 6d 65 72 2e 20 53 |ne the P|rimer. S|
|00000760| 6f 20 67 69 76 65 20 69 | 74 20 61 20 74 72 79 21 |o give i|t a try!|
|00000770| 0d 0d 5c 73 65 63 74 69 | 6f 6e 7b 43 6f 6d 6d 61 |..\secti|on{Comma|
|00000780| 6e 64 20 4c 69 6e 65 20 | 41 72 67 75 6d 65 6e 74 |nd Line |Argument|
|00000790| 73 7d 0d 0d 57 68 65 6e | 20 77 65 20 73 74 61 72 |s}..When| we star|
|000007a0| 74 65 64 20 5c 52 4c 61 | 42 5c 20 69 6e 20 74 68 |ted \RLa|B\ in th|
|000007b0| 65 20 6c 61 73 74 20 73 | 65 63 74 69 6f 6e 2c 20 |e last s|ection, |
|000007c0| 77 65 20 6a 75 73 74 20 | 75 73 65 64 20 74 68 65 |we just |used the|
|000007d0| 20 6e 61 6d 65 2e 0d 54 | 68 61 74 20 69 73 20 74 | name..T|hat is t|
|000007e0| 68 65 20 77 61 79 20 79 | 6f 75 20 77 69 6c 6c 20 |he way y|ou will |
|000007f0| 6e 6f 72 6d 61 6c 6c 79 | 20 73 74 61 72 74 20 5c |normally| start \|
|00000800| 52 4c 61 42 5c 20 2e 20 | 20 48 6f 77 65 76 65 72 |RLaB\ . | However|
|00000810| 2c 20 79 6f 75 20 6d 69 | 67 68 74 0d 61 6c 73 6f |, you mi|ght.also|
|00000820| 20 77 61 6e 74 20 74 6f | 20 63 68 61 6e 67 65 20 | want to| change |
|00000830| 74 68 65 20 62 65 68 61 | 76 69 6f 72 20 6f 66 20 |the beha|vior of |
|00000840| 5c 52 4c 61 42 5c 20 69 | 6e 20 73 6f 6d 65 20 63 |\RLaB\ i|n some c|
|00000850| 61 73 65 73 2c 20 77 68 | 69 63 68 20 77 69 6c 6c |ases, wh|ich will|
|00000860| 0d 72 65 71 75 69 72 65 | 20 79 6f 75 20 74 6f 20 |.require| you to |
|00000870| 75 73 65 20 61 6e 20 61 | 72 67 75 6d 65 6e 74 20 |use an a|rgument |
|00000880| 74 6f 20 5c 52 4c 61 42 | 5c 20 2e 20 20 0d 0d 5c |to \RLaB|\ .  ..\|
|00000890| 76 73 70 61 63 65 7b 31 | 63 6d 7d 0d 25 25 5c 62 |vspace{1|cm}.%%\b|
|000008a0| 65 67 69 6e 7b 62 6f 78 | 69 74 7d 0d 4e 6f 77 20 |egin{box|it}.Now |
|000008b0| 69 73 20 61 20 67 6f 6f | 64 20 74 69 6d 65 20 74 |is a goo|d time t|
|000008c0| 6f 20 64 69 76 65 72 67 | 65 20 66 6f 72 20 61 20 |o diverg|e for a |
|000008d0| 6d 6f 6d 65 6e 74 2e 20 | 20 54 68 72 6f 75 67 68 |moment. | Through|
|000008e0| 6f 75 74 20 74 68 69 73 | 20 6d 61 6e 75 61 6c 2c |out this| manual,|
|000008f0| 20 49 0d 77 69 6c 6c 20 | 75 73 65 20 60 72 61 69 | I.will |use `rai|
|00000900| 6c 72 6f 61 64 27 20 64 | 69 61 67 72 61 6d 73 20 |lroad' d|iagrams |
|00000910| 28 61 6c 73 6f 20 6b 6e | 6f 77 6e 20 61 73 20 42 |(also kn|own as B|
|00000920| 61 63 68 75 73 2d 4e 61 | 75 72 20 64 69 61 67 72 |achus-Na|ur diagr|
|00000930| 61 6d 73 29 2e 20 59 6f | 75 0d 6d 61 79 20 68 61 |ams). Yo|u.may ha|
|00000940| 76 65 20 73 65 65 6e 20 | 74 68 65 6d 20 75 73 65 |ve seen |them use|
|00000950| 64 20 69 6e 20 74 68 65 | 20 70 61 73 74 20 69 6e |d in the| past in|
|00000960| 20 50 61 73 63 61 6c 20 | 62 6f 6f 6b 73 2e 20 20 | Pascal |books.  |
|00000970| 54 68 65 20 62 61 73 69 | 63 20 74 68 65 6d 65 0d |The basi|c theme.|
|00000980| 69 73 20 74 68 61 74 20 | 79 6f 75 20 73 74 61 72 |is that |you star|
|00000990| 74 20 69 6e 20 74 68 65 | 20 74 6f 70 2d 6c 65 66 |t in the| top-lef|
|000009a0| 74 20 63 6f 72 6e 65 72 | 2c 20 61 6e 64 20 77 6f |t corner|, and wo|
|000009b0| 72 6b 20 61 72 6f 75 6e | 64 20 69 74 2e 20 20 54 |rk aroun|d it.  T|
|000009c0| 68 69 6e 6b 0d 6f 66 20 | 74 68 65 20 6c 6f 67 69 |hink.of |the logi|
|000009d0| 63 20 66 6c 6f 77 20 61 | 73 20 61 20 74 72 61 69 |c flow a|s a trai|
|000009e0| 6e 2e 20 20 59 6f 75 20 | 63 61 6e 27 74 20 64 6f |n.  You |can't do|
|000009f0| 20 68 61 69 72 70 69 6e | 20 74 75 72 6e 73 20 69 | hairpin| turns i|
|00000a00| 6e 20 61 20 74 72 61 69 | 6e 2c 0d 61 6e 64 20 79 |n a trai|n,.and y|
|00000a10| 6f 75 20 63 61 6e 27 74 | 20 69 6e 20 61 20 72 61 |ou can't| in a ra|
|00000a20| 69 6c 72 6f 61 64 20 64 | 69 61 67 72 61 6d 20 65 |ilroad d|iagram e|
|00000a30| 69 74 68 65 72 2e 20 20 | 48 65 72 65 20 69 73 20 |ither.  |Here is |
|00000a40| 61 20 73 69 6d 70 6c 65 | 20 65 78 61 6d 70 6c 65 |a simple| example|
|00000a50| 3a 0d 0d 5c 62 65 67 69 | 6e 7b 72 61 69 6c 7d 0d |:..\begi|n{rail}.|
|00000a60| 44 65 6d 6f 3a 20 28 20 | 27 4d 61 6e 64 61 74 6f |Demo: ( |'Mandato|
|00000a70| 72 79 27 20 28 20 27 4f | 70 74 69 6f 6e 31 27 20 |ry' ( 'O|ption1' |
|00000a80| 7c 20 27 4f 70 74 69 6f | 6e 32 27 20 7c 20 28 29 || 'Optio|n2' | ()|
|00000a90| 20 29 20 28 20 27 52 65 | 70 65 61 74 27 20 2b 20 | ) ( 'Re|peat' + |
|00000aa0| 29 20 29 20 0d 5c 65 6e | 64 7b 72 61 69 6c 7d 0d |) ) .\en|d{rail}.|
|00000ab0| 0d 54 68 69 73 20 69 73 | 20 77 68 61 74 20 6d 6f |.This is| what mo|
|00000ac0| 73 74 20 6f 66 20 74 68 | 65 20 72 61 69 6c 72 6f |st of th|e railro|
|00000ad0| 61 64 20 64 69 61 67 72 | 61 6d 73 20 6c 6f 6f 6b |ad diagr|ams look|
|00000ae0| 20 6c 69 6b 65 20 69 6e | 20 74 68 69 73 20 6d 61 | like in| this ma|
|00000af0| 6e 75 61 6c 2e 0d 54 68 | 65 20 66 69 72 73 74 20 |nual..Th|e first |
|00000b00| 62 69 74 20 28 5c 76 65 | 72 62 2b 4d 61 6e 64 61 |bit (\ve|rb+Manda|
|00000b10| 74 6f 72 79 2b 29 20 68 | 61 73 20 74 6f 20 6f 63 |tory+) h|as to oc|
|00000b20| 63 75 72 2e 20 54 68 65 | 20 6e 65 78 74 20 73 74 |cur. The| next st|
|00000b30| 61 67 65 20 67 69 76 65 | 73 0d 79 6f 75 20 74 68 |age give|s.you th|
|00000b40| 72 65 65 20 6f 70 74 69 | 6f 6e 73 2e 20 20 59 6f |ree opti|ons.  Yo|
|00000b50| 75 20 63 61 6e 20 64 6f | 20 6f 6e 65 20 6f 66 20 |u can do| one of |
|00000b60| 74 68 72 65 65 20 74 68 | 69 6e 67 73 20 2d 20 5c |three th|ings - \|
|00000b70| 76 65 72 62 2b 4f 70 74 | 69 6f 6e 31 2b 2c 0d 5c |verb+Opt|ion1+,.\|
|00000b80| 76 65 72 62 2b 4f 70 74 | 69 6f 6e 32 2b 2c 20 6f |verb+Opt|ion2+, o|
|00000b90| 72 20 73 6b 69 70 20 74 | 68 61 74 20 73 74 61 67 |r skip t|hat stag|
|00000ba0| 65 20 61 6c 6c 20 74 6f | 67 65 74 68 65 72 2e 20 |e all to|gether. |
|00000bb0| 20 54 68 65 20 6e 65 78 | 74 20 73 74 61 67 65 0d | The nex|t stage.|
|00000bc0| 61 6c 6c 6f 77 73 20 79 | 6f 75 20 74 6f 20 64 6f |allows y|ou to do|
|00000bd0| 20 74 68 61 74 20 73 74 | 65 70 20 6f 6e 65 20 6f | that st|ep one o|
|00000be0| 72 20 6d 6f 72 65 20 74 | 69 6d 65 73 2e 20 41 66 |r more t|imes. Af|
|00000bf0| 74 65 72 20 64 6f 69 6e | 67 20 69 74 20 61 74 20 |ter doin|g it at |
|00000c00| 6c 65 61 73 74 0d 6f 6e | 63 65 2c 20 79 6f 75 20 |least.on|ce, you |
|00000c10| 63 61 6e 20 65 78 69 74 | 2e 20 20 54 68 61 74 20 |can exit|.  That |
|00000c20| 77 61 73 20 70 72 65 74 | 74 79 20 73 69 6d 70 6c |was pret|ty simpl|
|00000c30| 65 20 77 61 73 6e 27 74 | 20 69 74 3f 20 20 49 66 |e wasn't| it?  If|
|00000c40| 20 74 68 65 20 75 73 65 | 20 6f 66 0d 74 68 65 20 | the use| of.the |
|00000c50| 72 61 69 6c 72 6f 61 64 | 20 64 69 61 67 72 61 6d |railroad| diagram|
|00000c60| 20 66 6f 72 20 73 6f 6d | 65 74 68 69 6e 67 20 65 | for som|ething e|
|00000c70| 6c 75 64 65 73 20 79 6f | 75 2c 20 68 61 76 65 20 |ludes yo|u, have |
|00000c80| 61 20 6c 6f 6f 6b 20 66 | 6f 72 0d 65 78 61 6d 70 |a look f|or.examp|
|00000c90| 6c 65 73 20 6f 66 20 61 | 63 74 75 61 6c 6c 79 20 |les of a|ctually |
|00000ca0| 75 73 69 6e 67 20 74 68 | 61 74 20 74 68 69 6e 67 |using th|at thing|
|00000cb0| 2e 20 20 54 68 65 20 72 | 61 69 6c 72 6f 61 64 20 |.  The r|ailroad |
|00000cc0| 64 69 61 67 72 61 6d 20 | 69 73 0d 64 65 66 69 6e |diagram |is.defin|
|00000cd0| 69 74 69 76 65 2c 20 62 | 75 74 20 65 78 61 6d 70 |itive, b|ut examp|
|00000ce0| 6c 65 73 20 61 72 65 20 | 75 73 75 61 6c 6c 79 20 |les are |usually |
|00000cf0| 6d 6f 72 65 20 6f 62 76 | 69 6f 75 73 2e 0d 25 25 |more obv|ious..%%|
|00000d00| 5c 65 6e 64 7b 62 6f 78 | 69 74 7d 0d 0d 4e 6f 77 |\end{box|it}..Now|
|00000d10| 20 74 68 61 74 20 79 6f | 75 20 6b 6e 6f 77 20 61 | that yo|u know a|
|00000d20| 62 6f 75 74 20 72 61 69 | 6c 72 6f 61 64 20 64 69 |bout rai|lroad di|
|00000d30| 61 67 72 61 6d 73 2c 20 | 6c 65 74 27 73 20 75 73 |agrams, |let's us|
|00000d40| 65 20 6f 6e 65 20 74 6f | 20 73 68 6f 77 20 77 68 |e one to| show wh|
|00000d50| 61 74 0d 61 72 67 75 6d | 65 6e 74 73 20 5c 52 4c |at.argum|ents \RL|
|00000d60| 61 42 5c 20 63 61 6e 20 | 74 61 6b 65 2e 20 49 66 |aB\ can |take. If|
|00000d70| 20 79 6f 75 20 75 6e 64 | 65 72 73 74 61 6e 64 20 | you und|erstand |
|00000d80| 6e 6f 72 6d 61 6c 20 55 | 6e 69 78 20 6e 6f 74 61 |normal U|nix nota|
|00000d90| 74 69 6f 6e 2c 0d 74 68 | 65 6e 0d 0d 5c 76 65 72 |tion,.th|en..\ver|
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|00004550| 66 74 20 6f 66 20 74 68 | 65 20 63 75 72 73 6f 72 |ft of th|e cursor|
|00004560| 2e 20 5c 5c 0d 20 20 20 | 20 20 20 20 20 20 20 20 |. \\.   |        |
|00004570| 20 5c 76 65 72 62 2b 5e | 49 2b 20 26 20 20 49 6e | \verb+^|I+ &  In|
|00004580| 73 65 72 74 20 73 70 61 | 63 65 73 20 74 6f 20 74 |sert spa|ces to t|
|00004590| 68 65 20 6e 65 78 74 20 | 74 61 62 20 73 74 6f 70 |he next |tab stop|
|000045a0| 2e 20 5c 5c 0d 20 20 20 | 20 20 20 20 20 20 20 20 |. \\.   |        |
|000045b0| 20 5c 76 65 72 62 2b 5e | 4a 2b 20 26 20 20 53 61 | \verb+^|J+ &  Sa|
|000045c0| 6d 65 20 61 73 20 68 69 | 74 74 69 6e 67 20 52 45 |me as hi|tting RE|
|000045d0| 54 55 52 4e 20 6b 65 79 | 2e 20 5c 5c 0d 20 20 20 |TURN key|. \\.   |
|000045e0| 20 20 20 20 20 20 20 20 | 20 5c 76 65 72 62 2b 5e |        | \verb+^|
|000045f0| 4d 2b 20 26 20 20 53 61 | 6d 65 20 61 73 20 68 69 |M+ &  Sa|me as hi|
|00004600| 74 74 69 6e 67 20 52 45 | 54 55 52 4e 20 6b 65 79 |tting RE|TURN key|
|00004610| 2e 20 5c 5c 0d 20 20 20 | 20 20 20 20 20 20 20 20 |. \\.   |        |
|00004620| 20 5c 76 65 72 62 2b 5e | 4f 2b 20 26 20 20 54 6f | \verb+^|O+ &  To|
|00004630| 67 67 6c 65 20 20 6f 76 | 65 72 77 72 69 74 65 2f |ggle  ov|erwrite/|
|00004640| 69 6e 73 65 72 74 20 6d | 6f 64 65 2e 0d 5c 65 6e |insert m|ode..\en|
|00004650| 64 7b 74 61 62 75 6c 61 | 72 7d 0d                |d{tabula|r}.     |
+--------+-------------------------+-------------------------+--------+--------+