{"id":2623,"date":"2012-03-13T20:33:30","date_gmt":"2012-03-13T11:33:30","guid":{"rendered":"http:\/\/pchero21.com\/?p=2623"},"modified":"2012-03-13T20:33:30","modified_gmt":"2012-03-13T11:33:30","slug":"2-%ec%8b%9c%ec%9e%91","status":"publish","type":"post","link":"http:\/\/pchero21.com\/?p=2623","title":{"rendered":"2. \uc2dc\uc791"},"content":{"rendered":"

\uc5bc\ub7ad \uc124\uce58\ud558\uae30<\/strong><\/p>\n

Ubuntu\uc758 \uacbd\uc6b0..<\/p>\n

sudo apt-get install erlang<\/p><\/blockquote>\n

 <\/p>\n

\uc178 \uc2dc\uc791\ud558\uae30<\/strong><\/p>\n

\ud130\ubbf8\ub110 \ucc3d\uc5d0\uc11c erl \uc774\ub77c\uace0 \uc785\ub825\ud558\uace0 \uc5bc\ub7ad\uc744 \uc2dc\uc791\ud558\uc790.<\/p>\n

$ erl<\/p>\n

jonathan@jonathan-laptop:~$ erl
\nErlang R13B03 (erts-5.7.4) [source] [smp:4:4] [rq:4] [async-threads:0] [hipe] [kernel-poll:false]<\/p>\n

Eshell V5.7.4\u00a0 (abort with ^G)
\n1> 20 + 30.
\n50
\n2><\/p><\/blockquote>\n

 <\/p>\n

\uac04\ub2e8\ud55c \uc815\uc218 \uc5f0\uc0b0<\/strong><\/p>\n

jonathan@jonathan-laptop:~$ erl
\nErlang R13B03 (erts-5.7.4) [source] [smp:4:4] [rq:4] [async-threads:0] [hipe] [kernel-poll:false]<\/p>\n

Eshell V5.7.4\u00a0 (abort with ^G)
\n1> 2 + 3 * 4.
\n14
\n2> (2 + 3) * 4.
\n20
\n3> 123456789 * 987654321 * 112233445566778899 * 998877665544332211.
\n13669560260321809985966198898925761696613427909935341
\n4> 16#cafe * 32#sugar.
\n1577682511434
\n5><\/p><\/blockquote>\n

 <\/p>\n

\ubcc0\uc218<\/strong><\/p>\n

\uc5b4\ub5a4 \uba85\ub839\uc758 \uacb0\uacfc\ub97c \uc800\uc7a5\ud558\uc5ec \ub098\uc911\uc5d0 \uc0ac\uc6a9\ud558\ub824\uba74 \uc5b4\ub5bb\uac8c \ud560\uae4c? \uadf8\uac8c \ubc14\ub85c \ubcc0\uc218\uc758 \uc5ed\ud560\uc774\ub2e4.<\/p>\n

1> X = 123456789.
\n123456789<\/p><\/blockquote>\n

– \ubaa8\ub4e0 \ubcc0\uc218\ub294 \ub300\ubb38\uc790\ub85c \uc2dc\uc791\ud574\uc57c \ud55c\ub2e4.<\/p>\n

\uc5b4\ub5a4 \ubcc0\uc218\uc758 \uac12\uc744 \ubcf4\ub824\uba74, \uadf8\ub0e5 \uadf8 \ubcc0\uc218\uba85\uc744 \uc785\ub825\ud558\uba74 \ub41c\ub2e4.<\/p>\n

2> X.
\n123456789<\/p><\/blockquote>\n

\ub9cc\uc57d, \ubcc0\uc218 X \uc5d0 \ub2e4\ub978 \uac12\uc744 \ud560\ub2f9\ud558\ub824 \ud55c\ub2e4\uba74 \uc624\ub958 \uba54\uc2dc\uc9c0\ub97c \ubc1c\uacac\ud560 \uac83\uc774\ub2e4.<\/p>\n

1> X = 1234567.
\n1234567
\n2> X = 890.
\n** exception error: no match of right hand side value 890<\/p><\/blockquote>\n

\uc774\ub294 \ub2e4\uc74c\uc758 \uc774\uc720\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \uc624\ub958\uc774\ub2e4.
\n– \uccab\uc9f8, X\ub294 \ubcc0\uc218\uac00 \uc544\ub2c8\ub2e4. \uc801\uc5b4\ub3c4 \uc790\ubc14\ub098 C \uac19\uc740 \uc5b8\uc5b4\uc5d0\uc11c \uc4f0\ub294 \uc758\ubbf8\uc758 \ubcc0\uc218\ub85c \uc0dd\uac01\ud574\uc11c\ub294 \uc548\ub41c\ub2e4.
\n– \ub458\uc9f8, = \uc740 \ud560\ub2f9 \uc5f0\uc0b0\uc790\uac00 \uc544\ub2c8\ub2e4.<\/p>\n

 <\/p>\n

\ubb54\uac00 \uc798\ubabb\ub418\uc5b4 \uc2dc\uc2a4\ud15c\uc774 \uc751\ub2f5\uc774 \uc5c6\ub2e4\uba74, \uadf8\ub0e5 Ctrl+C \ub97c \ub204\ub974\uc790.<\/p>\n

BREAK: (a)bort (c)ontinue (p)roc info (i)nfo (l)oaded
\n(v)ersion (k)ill (D)b-tables (d)istribution<\/p><\/blockquote>\n

\uc640 \uac19\uc774 \ub098\ud0c0\ub0a0 \uac83\uc774\ub2e4.
\nA\ub97c \ub204\ub974\uba74 \uc5bc\ub7ad \uc138\uc158\uc744 \uc911\ub2e8\ud560 \uc218 \uc788\ub2e4.<\/p>\n

 <\/p>\n

\ub73b\ud558\uc9c0 \uc54a\ub294 \ubcc0\uc218<\/strong><\/p>\n

\uc5bc\ub7ad\uc740 ‘\ub2e8\uc77c \ud560\ub2f9 \ubcc0\uc218(single assignment variable)’\ub97c \uac00\uc9c4\ub2e4. \uadf8 \uc774\ub984\uc774 \uc758\ubbf8\ud558\ub294 \ub4ef, \ub2e8\uc77c \ud560\ub2f9 \ubcc0\uc218\ub294 \uac12\uc744 \uc624\uc9c1 \ud55c \ubc88\ub9cc \ubc1b\uc744 \uc218 \uc788\ub2e4. \uc77c\ub2e8 \ud55c\ubc88 \uc124\uc815\ub41c \ubcc0\uc218\uc758 \uac12\uc744 \ubcc0\uacbd\ud558\ub824\uace0 \ud558\uba74 \uc624\ub958\uac00 \ubc1c\uc0dd\ud55c\ub2e4.<\/p>\n

\uac12\uc774 \ud560\ub2f9\ub41c \ubcc0\uc218\ub97c ‘\ubc14\uc6b4\ub4dc(bound)’ \ubcc0\uc218\ub77c \ubd80\ub974\uba70, \uadf8\ub807\uc9c0 \uc54a\uc740 \ubcc0\uc218\ub294 ‘\uc5b8\ubc14\uc6b4\ub4dc(unbound)’ \ubcc0\uc218\ub77c \ubd80\ub978\ub2e4. \ubaa8\ub4e0 \ubcc0\uc218\ub294 \uc5b8\ubc14\uc6b4\ub4dc\uc5d0\uc11c \uc2dc\uc791\ud55c\ub2e4. \uadf8\ub7ec\ub098 \uc77c\ub2e8 \uac12\uc744 \ub2f4\uc73c\uba74, \uc601\uc6d0\ud788 \uadf8 \uac12\uc744 \ubcf4\uc720\ud55c\ub2e4.<\/p>\n

\ubcc0\uc218\uc758 \ubc94\uc704(scope)\ub780 \uadf8 \ubcc0\uc218\uac00 \uc815\uc758\ub41c \uc5b4\ud718 \ub2e8\uc704(lexical unit)\ub97c \ub9d0\ud55c\ub2e4. \ub530\ub77c\uc11c \ub9cc\uc57d X\uac00 \uc5b4\ub5a4 \ub2e8\uc77c \ud568\uc218 \uc808 \ub0b4\uc5d0\uc11c \uc0ac\uc6a9\ub418\uba74, \uadf8 \ubcc0\uc218\uc758 \uac12\uc740 \uc808 \ubc16\uc73c\ub85c \ub098\uac00\uc9c0 \ubabb\ud55c\ub2e4. \ub3d9\uc77c\ud55c \ud568\uc218\uc5d0\uc11c \uc5ec\ub7ec \ub2e4\ub978 \uc808\ub4e4\uc774 \uacf5\uc720\ud558\ub294 \uadf8\ub7f0 \uc804\uc5ed(global) \ub610\ub294 \ud504\ub77c\uc774\ube57(private) \ubcc0\uc218 \uac19\uc740 \uac83\uc740 \uc5c6\ub2e4.<\/p>\n

 <\/p>\n

\ud328\ud134 \ub9e4\uce6d<\/strong><\/p>\n

\ub300\ubd80\ubd84\uc758 \uc5b8\uc5b4\uc5d0\uc11c =\uc740 \ud560\ub2f9\ubb38\uc744 \ub098\ud0c0\ub0b8\ub2e4. \uadf8\ub7ec\ub098 \uc5bc\ub7ad\uc5d0\uc11c =\ub294 \ud328\ud134 \ub9e4\uce6d \uc5f0\uc0b0\uc744 \ub73b\ud55c\ub2e4. Lhs = Rhs \uac00 \uc9c4\uc9dc\ub85c \uc758\ubbf8\ud558\ub294 \ubc14\ub294 \uc624\ub978\ucabd(Rhs)\ub97c \uacc4\uc0b0\ud55c \ub2e4\uc74c, \uadf8 \uacb0\uacfc\ub97c \uc67c\ucabd(Lhs)\uc5d0 \uc788\ub294 \ud328\ud134\uacfc \ub9e4\uce58\ud558\ub77c\ub294 \ub73b\uc774\ub2e4.<\/p>\n

 <\/p>\n

\ubd80\ub3d9 \uc18c\uc218\uc810 \uc218<\/strong><\/p>\n

\ubd80\ub3d9 \uc18c\uc218\uc810 \uc218\ub294 \uc18c\uc218\uc810\uc5d0 \uc774\uc5b4 \uc801\uc5b4\ub3c4 \ud558\ub098\uc758 \uc18c\uc218\uac00 \uc640\uc57c \ud55c\ub2e4. \uc815\uc218 \ub450 \uac1c\ub97c ‘\/’\ub85c \ub098\ub204\uba74 \uadf8 \uacb0\uacfc\ub294 \uc790\ub3d9\uc73c\ub85c \ubd80\ub3d9 \uc18c\uc218\uc810 \uc218\ub85c \ubcc0\ud658\ub41c\ub2e4.<\/p>\n

 <\/p>\n

\uc560\ud140<\/strong><\/p>\n

\uc5bc\ub7ad\uc5d0\uc11c \uc560\ud140(Atom)\uc740 \uc218\uce58\uac00 \uc544\ub2cc \uc0c1\uc774\ud55c \ubd88\ubcc0 \uac12\uc744 \ub098\ud0c0\ub0b4\ub294 \ub370 \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n

\uc5bc\ub7ad\uc5d0\uc11c \uc560\ud140\uc740 \uc804\uc5ed(global)\uc774\uba70, \ub610\ud55c \ub9e4\ud06c\ub85c \uc815\uc758\ub098 \uc778\ud074\ub8e8\ub4dc \ud30c\uc77c\uc744 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uace0\ub3c4 \uadf8 \ubaa9\uc801\uc744 \ub2ec\uc131\ud560 \uc218 \uc788\ub2e4.
\n\uc560\ud140\uc740 \uc18c\ubb38\uc790\ub85c \uc2dc\uc791\ud558\uace0 \uadf8 \ub4a4\ub85c \uc77c\ub828\uc758 \uc54c\ud30c\ub274\uba38\ub9ad(alphanumeric)\ubb38\uc790\ub098 \uc5b8\ub354\uc2a4\ucf54\uc5b4(_) \ub610\ub294 at(@) \uae30\ud638\uac00 \uc628\ub2e4.<\/p>\n

\uc560\ud140\uc740 \uc791\uc740 \ub530\uc634\ud45c(‘ ‘)\ub85c \ubb36\uc744 \uc218 \uc788\ub2e4. \uc778\uc6a9 \ubd80\ud638 \ud615\ud0dc\ub97c \uc0ac\uc6a9\ud558\uba74 \ub300\ubb38\uc790\ub85c \uc2dc\uc791\ud558\ub294 \uc560\ud140(\uadf8\ub7ec\uc9c0 \uc54a\uc73c\uba74 \ubcc0\uc218\ub85c \ud574\uc11d\ub418\uc5c8\uc744 \uac83\uc774\ub2e4)\uc774\ub098 \ub610\ub294 \uc54c\ud30c\ub274\uba38\ub9ad\uc774 \uc544\ub2cc \ubb38\uc790\uac00 \ub4e4\uc5b4\uac04 \uc560\ud140\uc744 \ub9cc\ub4e4 \uc218 \uc788\ub2e4. \uc608\ub97c \ub4e4\uba74, ‘Monday’, ‘Tuesday’, ‘+’, ‘*’, ‘an atom with spaces’ \uc640 \uac19\uc740 \uac83\ub4e4\uc774\ub2e4. \uc778\uc6a9\ubd80\ud638\ub97c \uc0ac\uc6a9\ud560 \ud544\uc694\uac00 \uc5c6\ub294 \uc560\ud140\ub4e4\ub3c4 \ubb36\uc744 \uc218 \uc788\uc73c\uba70, \ub530\ub77c\uc11c ‘a’\ub294 a \uc640 \uc815\ud655\ud788 \ub611\uac19\ub2e4.<\/p>\n

\uc560\ud140\uc758 \uac12\uc740 \uc560\ud140\uc77c \ubfd0\uc774\ub2e4. \uadf8\uc800 \uc560\ud140\uc778 \uba85\ub839\uc744 \uc8fc\uba74 \uc5bc\ub7ad \uc178\uc740 \uadf8 \uc560\ud140\uc758 \uac12\uc744 \ucd9c\ub825\ud560 \uac83\uc774\ub2e4.<\/p>\n

15> hi.
\nhi<\/p><\/blockquote>\n

\uc560\ud140\uc758 \uac12 \ub610\ub294 \uc815\uc218\uc758 \uac12\uc774\ub77c\ub294 \ub9d0\uc774 \ub2e4\uc18c \uc774\uc0c1\ud574 \ubcf4\uc77c \uc218\ub3c4 \uc788\ub2e4. \uadf8\ub807\uc9c0\ub9cc \uc5bc\ub7ad\uc774 \ud568\uc218\ud615 \uc5b8\uc5b4\uc778 \uae4c\ub2ed\uc5d0, \ubaa8\ub4e0 \uc2dd\uc740 \uac12\uc744 \uac00\uc838\uc57c \ud55c\ub2e4. \uc544\uc8fc \uac04\ub2e8\ud55c \uc2dd\uc778 \uc815\uc218\uc640 \uc560\ud140\ub3c4 \uc608\uc678\ub294 \uc544\ub2c8\ub2e4.<\/p>\n

 <\/p>\n

\u00a0\ud29c\ud50c<\/strong><\/p>\n

\uc815\ud574\uc9c4 \uc218\uc758 \ud56d\ubaa9\uc744 \ud558\ub098\uc758 \uac1c\uccb4\ub85c \uadf8\ub8f9\ud551\ud55c\ub2e4\uace0 \ud574\ubcf4\uc790. \uc774\ub7f4 \ub54c \ud29c\ud50c(Tuple)\uc744 \uc0ac\uc6a9\ud55c\ub2e4. \ud29c\ud50c\uc740 \uc5ec\ub7ec\ubd84\uc774 \ud45c\ud604\ud558\uace0\uc790 \ud558\ub294 \uac12\ub4e4\uc744 \uc911\uad04\ud638\ub85c \ub458\ub7ec\uc2f8\uace0 \uc27c\ud45c\ub85c \uadf8 \uac12\ub4e4\uc744 \uad6c\ubd84\ud558\uba74 \ub41c\ub2e4.<\/p>\n

\ud29c\ud50c\uc740 C\uc758 \uad6c\uc870\uccb4\uc640 \uc720\uc0ac\ud558\ub2e4. \ub2e4\ub978 \uc810\uc774\ub77c\uba74 \ud29c\ud50c\uc740 \uc775\uba85\uc774\ub77c\ub294 \uac83\uc774\ub2e4. \uc5bc\ub7ad\uc5d0\ub294 \ud615 \uc120\uc5b8\uc774 \uc5c6\uae30 \ub54c\ubb38\uc5d0, ‘\uc810(point)’\ub97c \ub9cc\ub4e4 \ub54c\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uc791\uc131\ud558\uba74 \ub41c\ub2e4.<\/p>\n

16> T = {10, 45}.
\n{10,45}
\n17> T .
\n{10,45}<\/p><\/blockquote>\n

\uc774\ub7ec\uba74 \ud29c\ud50c\uc744 \ud558\ub098 \uc0dd\uc131\ud558\uc5ec \uadf8\uac83\uc744 \ubcc0\uc218 P\uc640 \ubb36\ub294\ub2e4. \ud29c\ud50c\uc758 \ud544\ub4dc\ub294 \uc774\ub984\uc774 \uc5c6\ub2e4. \ud29c\ud50c \uadf8 \uc790\uccb4\ub294 \uadf8\uc800 \uc815\uc218 \ud55c \uc30d\ub9cc \ub4e4\uc5b4 \uc788\uc744 \ubfd0\uc774\ubbc0\ub85c, \uadf8\uac8c \uc5b4\ub5a4 \uc6a9\ub3c4\ub85c \uc0ac\uc6a9\ub418\ub294\uc9c0\ub294 \uc6b0\ub9ac\uac00 \uae30\uc5b5\ud574\uc57c \ud55c\ub2e4. \ud29c\ud50c\uc774 \uc5b4\ub514\uc5d0 \uc0ac\uc6a9\ub418\ub294\uc9c0 \uae30\uc5b5\ud558\uae30 \uc27d\ub3c4\ub85d \ud558\ub824\uace0, \ud1b5\uc0c1 \ud29c\ud50c\uc758 \uccab \ubc88\uc9f8 \uc694\uc18c\ub85c \uadf8 \ud29c\ud50c\uc774 \ubb34\uc5c7\uc778\uc9c0\ub97c \ub098\ud0c0\ub0b4\ub294 \uc560\ud140\uc744 \uc0ac\uc6a9\ud55c\ub2e4. \ub610\ud55c \ud29c\ud50c\uc740 \uc911\ucca9\ub420 \uc218 \uc788\ub2e4.<\/p>\n

 <\/p>\n

\ud29c\ud50c \uc0dd\uc131\ud558\uae30<\/strong><\/p>\n

\ud29c\ud50c\uc740 \uc120\uc5b8\ud560 \ub54c \uc790\ub3d9\uc73c\ub85c \uc0dd\uc131\ub418\uace0 \ub354\ub294 \uc0ac\uc6a9\ub418\uc9c0 \uc54a\uc744 \ub54c \uc81c\uac70\ub41c\ub2e4. \uc5bc\ub7ad\uc740 \uac00\ube44\uc9c0 \ucf5c\ub809\ud130(garbage collector)\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc0ac\uc6a9\ub418\uc9c0 \uc54a\ub294 \ubaa8\ub4e0 \uba54\ubaa8\ub9ac\ub97c \uc218\uac70\ud558\uae30 \ub54c\ubb38\uc5d0 \uc6b0\ub9ac\uac00 \uba54\ubaa8\ub9ac \ud560\ub2f9\uc5d0 \ub300\ud574\uc11c \uac71\uc815\ud560 \ud544\uc694\ub294 \uc5c6\ub2e4.<\/p>\n

\uc0c8 \ud29c\ud50c\uc744 \uad6c\uc131\ud560 \ub54c \ubcc0\uc218\ub97c \uc0ac\uc6a9\ud558\uba74, \uadf8 \uc0c8 \ud29c\ud50c\uc740 \ubcc0\uc218\uac00 \ucc38\uc870\ud558\ub294 \ub370\uc774\ud130 \uad6c\uc870\uc758 \uac12\uc744 \uacf5\uc720\ud560 \uac83\uc774\ub2e4.<\/p>\n

2> F = {firstName, jonathan}.
\n{firstName,jonathan}
\n3> L = {lastName, kim}.
\n{lastName,kim}
\n4> P = {person, F, L}.
\n{person,{firstName,jonathan},{lastName,kim}}<\/p><\/blockquote>\n

\ub9cc\uc57d \uc815\uc758\ub418\uc9c0 \uc54a\uc740 \ubcc0\uc218\ub85c \ub370\uc774\ud130 \uad6c\uc870\ub97c \uc0dd\uc131\ud558\ub824 \ud558\uba74 \uc624\ub958\uac00 \ub0a0 \uac83\uc774\ub2e4.<\/p>\n

 <\/p>\n

\u00a0\ud29c\ud50c\uc5d0\uc11c \uac12 \ucd94\ucd9c\ud558\uae30<\/strong><\/p>\n

\ub9c8\uce58 \ud560\ub2f9\ubb38\ucc98\ub7fc \ubcf4\uc774\ub294 ‘=’\ub294 \uc5bc\ub7ad\uc5d0\uc11c\ub294 \ud560\ub2f9\ubb38\uc774 \uc544\ub2c8\ub77c \ud328\ud134 \ub9e4\uce6d \uc5f0\uc0b0\uc790\uc774\ub2e4. \uc0ac\uc2e4, \ud328\ud134 \ub9e4\uce6d\uc740 \uc5bc\ub7ad\uc758 \uadfc\ubcf8\uc774\uba70 \ub9ce\uc740 \ub2e4\uc591\ud55c \uc791\uc5c5\uc5d0\uc11c \uc0ac\uc6a9\ub41c\ub2e4. \ud328\ud134 \ub9e4\uce6d\uc740 \ub370\uc774\ud130 \uad6c\uc870\uc5d0\uc11c \uac12\uc744 \ucd94\ucd9c\ud574\ub0b4\ub294 \ub370\ub3c4 \uc0ac\uc6a9\ub418\uace0, \ud568\uc218 \uc18d\uc758 \uc81c\uc5b4 \ud750\ub984\uc774\ub098, \ubcd1\ub82c \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c \uc5b4\ub5a4 \ud504\ub85c\uc138\uc2a4\ub85c \uba54\uc2dc\uc9c0\ub97c \ubcf4\ub0bc \ub54c \uc5b4\ub290 \uba54\uc2dc\uc9c0\uac00 \ucc98\ub9ac\ub418\uc5b4\uc57c \ud558\ub294\uc9c0\ub97c \uc815\ud558\ub294 \ub370\ub3c4 \uc0ac\uc6a9\ub41c\ub2e4.<\/p>\n

\ud29c\ud50c\uc5d0\uc11c \uc5b4\ub5a4 \uac12\uc744 \ucd94\ucd9c\ud558\ub824\uba74, \ud328\ud134 \ub9e4\uce6d \uc5f0\uc0b0\uc790 ‘=’\uc744 \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n

5> Point = {point, 10, 45}.
\n{point,10,45}
\n6> {point, X, Y} = Point.
\n{point,10,45}
\n7> X.
\n10
\n8> Y.
\n45<\/p><\/blockquote>\n

\uc704\uc758 \uc608\uc5d0\uc11c\uc640 \uac19\uc774, \ub4f1\ud638 \ud45c\uc2dc\uc758 \uc591\ucabd\uc5d0 \uc788\ub294 \ud29c\ud50c\uc740 \uc694\uc18c\uc758 \uac1c\uc218\uac00 \uac19\uc544\uc57c \ud558\uba70, \uc591\uce21\uc758 \ub300\uc751\ub418\ub294 \uc694\uc18c\ub294 \uac19\uc740 \uac12\uc73c\ub85c \ubc14\uc778\ub4dc\ub418\uc5b4\uc57c \ud55c\ub2e4.<\/p>\n

\ubcf5\uc7a1\ud55c \ud29c\ud50c\uc778 \uacbd\uc6b0, \uadf8 \ud29c\ud50c\uacfc \ub611\uac19\uc740 \ubaa8\uc591(\uad6c\uc870)\uc73c\ub85c \ub41c \ud328\ud134\uc744 \ud558\ub098 \ub9cc\ub4e4\uace0 \uadf8 \ud328\ud134 \uc18d\uc5d0\uc11c \uc0ac\uc6a9\uc790\uac00 \uac12\uc744 \ucd94\ucd9c\ud558\uace0\uc790 \ud558\ub294 \uacf3\uc5d0 \uc5b8\ubc14\uc6b4\ub4dc \ubcc0\uc218\ub97c \ub460\uc73c\ub85c\uc368 \uac12\uc744 \ucd94\ucd9c\ud574\ub0bc \uc218 \uc788\ub2e4.<\/p>\n

 <\/p>\n

\ub9ac\uc2a4\ud2b8<\/strong><\/p>\n

\uac1c\uc218\uac00 \uac00\ubcc0\uc801\uc778 \ubb34\uc5c7\uc778\uac00\ub97c \uc800\uc7a5\ud560 \ub54c\ub294 \ub9ac\uc2a4\ud2b8(List)\ub97c \uc0ac\uc6a9\ud55c\ub2e4. \ub9ac\uc2a4\ud2b8\ub294 \uc694\uc18c\ub97c \ub300\uad04\ud638\ub85c \ub458\ub7ec\uc2f8\uace0 \uc27c\ud45c\ub85c \uc694\uc18c\ub4e4\uc744 \uad6c\ubd84\ud558\uc5ec \ub9cc\ub4e0\ub2e4.<\/p>\n

 <\/p>\n

\u00a0\ub9ac\uc2a4\ud2b8 – \uc6a9\uc5b4<\/strong><\/p>\n

\ub9ac\uc2a4\ud2b8\uc758 \uccab\uc9f8 \uc694\uc18c\ub97c \uadf8 \ub9ac\uc2a4\ud2b8\uc758 ‘\ud5e4\ub4dc(head)’\ub77c\uace0 \ubd80\ub978\ub2e4. \ub9ac\uc2a4\ud2b8\uc5d0\uc11c \ud5e4\ub4dc\ub97c \uc81c\uac70\ud588\uc744 \ub54c, \ub0a8\uc740 \ubd80\ubd84\uc744 \uac00\ub9ac\ucf1c \uadf8 \ub9ac\uc2a4\ud2b8\uc758 ‘\uaf2c\ub9ac(tail)’\ub77c\uace0 \ubd80\ub978\ub2e4. \ub9ac\uc2a4\ud2b8\uc758 \ud5e4\ub4dc\ub294 \ubb34\uc5c7\uc774\ub4e0 \ub420 \uc218 \uc788\uc9c0\ub9cc, \uaf2c\ub9ac\ub294 \ud1b5\uc0c1\uc801\uc73c\ub85c \ub9ac\uc2a4\ud2b8\ub77c\ub294 \uc810\uc5d0 \uc720\uc758\ud558\uc790.<\/p>\n

\ub9ac\uc2a4\ud2b8\uc758 \ud5e4\ub4dc\ub97c \uc561\uc138\uc2a4\ud558\ub294 \uac83\uc740 \ub9e4\uc6b0 \ud6a8\uc728\uc801\uc778 \uc5f0\uc0b0\uc774\uae30 \ub54c\ubb38\uc5d0 \uc0ac\uc2e4\uc0c1 \ubaa8\ub4e0 \ub9ac\uc2a4\ud2b8 \ucc98\ub9ac \ud568\uc218\uac00 \ub9ac\uc2a4\ud2b8\uc758 \ud5e4\ub4dc\ub97c \ucd94\ucd9c\ud558\ub294 \uac83\uc5d0\uc11c \uc2dc\uc791\ud55c\ub2e4. \ub9ac\uc2a4\ud2b8\uc758 \ud5e4\ub4dc\uc5d0 \ub300\ud574 \ubb54\uac00\ub97c \ud558\uace0, \ub9ac\uc2a4\ud2b8\uc758 \uaf2c\ub9ac\ub97c \ucc98\ub9ac\ud558\ub294 \uc2dd\uc774\ub2e4.<\/p>\n

 <\/p>\n

\u00a0\ub9ac\uc2a4\ud2b8 – \uc815\uc758\ud558\uae30<\/strong><\/p>\n

T\uac00 \ub9ac\uc2a4\ud2b8\uc774\uba74, [H|T]\ub3c4 \ub9ac\uc2a4\ud2b8\ub2e4. \ud5e4\ub4dc\uac00 H\uc774\uace0 \uaf2c\ub9ac\uac00 T\uc778 \ub9ac\uc2a4\ud2b8\uc778 \uac83\uc774\ub2e4. \uc138\ub85c\ub9c9\ub300 |\ub294 \ub9ac\uc2a4\ud2b8\uc758 \ud5e4\ub4dc\uc640 \uaf2c\ub9ac\ub97c \uad6c\ubd84\ud55c\ub2e4. []\ub294 \ube48 \ub9ac\uc2a4\ud2b8\uc774\ub2e4.<\/p>\n

[…|T] \uc0dd\uc131\uc790\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub9ac\uc2a4\ud2b8\ub97c \ub9cc\ub4e4 \ub54c\ub294 T\uac00 \ub9ac\uc2a4\ud2b8\uc784\uc744 \ubcf4\uc7a5\ud574\uc57c \ud55c\ub2e4. \uadf8\ub7ec\uba74 \uc0c8 \ub9ac\uc2a4\ud2b8\ub294 \uc801\uc808\ud55c \ud615\ud0dc\uac00 \ub420 \uac83\uc774\ub2e4. \ub9cc\uc57d T\uac00 \ub9ac\uc2a4\ud2b8\uac00 \uc544\ub2d0 \uacbd\uc6b0, \uadf8 \uc0c8\ub85c\uc6b4 \ub9ac\uc2a4\ud2b8\ub294 \ubd80\uc801\uc808\ud55c \ub9ac\uc2a4\ud2b8\ub77c \ubd80\ub978\ub2e4. \ub300\ubd80\ubd84\uc758 \ub77c\uc774\ube0c\ub7ec\ub9ac \ud568\uc218\ub4e4\uc740 \ub9ac\uc2a4\ud2b8\uac00 \uc801\uc808\ud55c \ud615\ud0dc\uc784\uc744 \uac00\uc815\ud558\uae30 \ub54c\ubb38\uc5d0 \ubd80\uc801\uc808\ud55c \ub9ac\uc2a4\ud2b8\uc640\ub294 \uc791\ub3d9\ud558\uc9c0 \uc54a\ub294\ub2e4.<\/p>\n

 <\/p>\n

\u00a0\ub9ac\uc2a4\ud2b8 – \uc694\uc18c \ucd94\ucd9c\ud558\uae30<\/strong><\/p>\n

\ub2e4\ub978 \ubaa8\ub4e0 \uac83\uacfc \ub9c8\ucc2c\uac00\uc9c0\ub85c, \ub9ac\uc2a4\ud2b8\uc5d0\uc11c \uc694\uc18c\ub97c \ucd94\ucd9c\ud558\ub294 \ub370\ub3c4 \ud328\ud134 \ub9e4\uce6d \uc5f0\uc0b0\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4.\ube44\uc5b4 \uc788\uc9c0 \uc54a\uc740 \ub9ac\uc2a4\ud2b8 L \uc774 \uc788\ub2e4\uba74, \uc2dd [X|Y] = L (\uc774\ub54c X\uc640 Y\ub294 \uc5b8\ubc14\uc6b4\ub4dc \ubcc0\uc218\ub2e4)\uc740 \ub9ac\uc2a4\ud2b8\uc758 \ud5e4\ub4dc\ub97c X\uc5d0 \uadf8\ub9ac\uace0 \ub9ac\uc2a4\ud2b8\uc758 \uaf2c\ub9ac\ub97c Y\ub85c \ucd94\ucd9c\ud560 \uac83\uc774\ub2e4.<\/p>\n

 <\/p>\n

\u00a0\ubb38\uc790\uc5f4<\/strong><\/p>\n

\uc5c4\ubc00\ud788 \ub9d0\ud558\uba74, \uc5bc\ub7ad\uc5d0\ub294 \ubb38\uc790\uc5f4\uc774 \uc5c6\ub2e4. \ubb38\uc790\uc5f4(string)\uc740 \uc2e4\uc81c\ub85c\ub294 \uc815\uc218\uc758 \ub9ac\uc2a4\ud2b8\uc77c \ub530\ub984\uc774\ub2e4. \ubb38\uc790\uc5f4\uc740 \ud070\ub530\uc634\ud45c(“”)\ub85c \ub458\ub7ec\uc2fc\ub2e4.
\n\uc5b4\ub5a4 \ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\uc5d0\uc11c\ub294 \ubb38\uc790\uc5f4\uc740 \uc791\uc740\ub530\uc634\ud45c \ub610\ub294 \ud070\ub530\uc634\ud45c\ub85c \ubb36\uc744 \uc218 \uc788\uc9c0\ub9cc \uc5bc\ub7ad\uc5d0\uc11c\ub294 \ud070\ub530\uc634\ud45c\ub97c \uc0ac\uc6a9\ud574\uc57c \ud55c\ub2e4.<\/p>\n

\uc178\uc5d0\uc11c \ub9ac\uc2a4\ud2b8\uc758 \uac12\uc744 \ucd9c\ub825\ud560 \ub54c\ub294 \ub9ac\uc2a4\ud2b8\ub97c \ubb38\uc790\uc5f4\ub85c \ucd9c\ub825\ud558\ub294\ub370, \uadf8\uac74 \uc624\uc9c1 \uadf8 \ub9ac\uc2a4\ud2b8 \uc18d\uc5d0 \uc788\ub294 \ubaa8\ub4e0 \uc815\uc218\uac00 \ucd9c\ub825 \uac00\ub2a5\ud55c \ubb38\uc790\ub4e4\uc744 \ub098\ud0c0\ub0b4\ub294 \uacbd\uc6b0\uc5d0 \ud55c\ud574\uc11c\ub2e4.<\/p>\n

\uc5b4\ub5a4 \uc815\uc218\uac00 \uc5b4\ub5a4 \ubb38\uc790\ub97c \ud45c\ud604\ud558\ub294\uc9c0 \uc54c \ud544\uc694\ub294 \uc5c6\ub2e4. \uc54c\uc544\uc57c \ud55c\ub2e4\uba74, ‘\ub2ec\ub7ec \uad6c\ubb38(dollar syntax)’\uc744 \uc0ac\uc6a9\ud558\uba74 \ub41c\ub2e4.<\/p>\n

 <\/p>\n

\u00a0\ubb38\uc790\uc5f4\uc5d0\uc11c \uc0ac\uc6a9\ud558\ub294 \ubb38\uc790\uc9d1\ud569<\/strong><\/p>\n

\ubb38\uc790\uc5f4\uc758 \ubb38\uc790\ub4e4\uc740 Latin-1 (ISO-8859-1)\ubb38\uc790 \ucf54\ub4dc\ub97c \ud45c\ud604\ud55c\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

\uc5bc\ub7ad \uc124\uce58\ud558\uae30 Ubuntu\uc758 \uacbd\uc6b0.. sudo apt-get install erlang   \uc178 \uc2dc\uc791\ud558\uae30 \ud130\ubbf8\ub110 \ucc3d\uc5d0\uc11c erl \uc774\ub77c\uace0 \uc785\ub825\ud558\uace0 \uc5bc\ub7ad\uc744 \uc2dc\uc791\ud558\uc790. $ erl jonathan@jonathan-laptop:~$ erl Erlang R13B03 (erts-5.7.4) [source] [smp:4:4] [rq:4] [async-threads:0] [hipe] [kernel-poll:false] Eshell V5.7.4\u00a0 (abort with ^G) 1> 20 + 30. … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[34],"tags":[],"_links":{"self":[{"href":"http:\/\/pchero21.com\/index.php?rest_route=\/wp\/v2\/posts\/2623"}],"collection":[{"href":"http:\/\/pchero21.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/pchero21.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/pchero21.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/pchero21.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2623"}],"version-history":[{"count":0,"href":"http:\/\/pchero21.com\/index.php?rest_route=\/wp\/v2\/posts\/2623\/revisions"}],"wp:attachment":[{"href":"http:\/\/pchero21.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2623"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/pchero21.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2623"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/pchero21.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}