00:03:56 tuubow [~adityavit@cpe-69-203-116-243.nyc.res.rr.com] has joined #scheme 00:15:37 -!- tuubow [~adityavit@cpe-69-203-116-243.nyc.res.rr.com] has quit [Ping timeout: 244 seconds] 00:31:42 -!- otakutom_ [~otakutomo@KD027083117212.ppp-bb.dion.ne.jp] has quit [Ping timeout: 252 seconds] 00:36:11 samth [~samth@c-67-176-146-194.hsd1.in.comcast.net] has joined #scheme 00:38:02 otakutomo [~otakutomo@KD027083117212.ppp-bb.dion.ne.jp] has joined #scheme 00:42:25 tuubow [~adityavit@cpe-69-203-116-243.nyc.res.rr.com] has joined #scheme 00:45:17 albert [~albert@adsl-71-156-44-252.dsl.irvnca.sbcglobal.net] has joined #scheme 00:50:50 homie` [~levgue@xdsl-78-35-131-250.netcologne.de] has joined #scheme 00:52:20 -!- jonrafkind [~jon@jonr5.dsl.xmission.com] has quit [Ping timeout: 252 seconds] 00:52:45 -!- homie` [~levgue@xdsl-78-35-131-250.netcologne.de] has quit [Client Quit] 00:53:23 -!- homie [~levgue@xdsl-87-79-248-99.netcologne.de] has quit [Ping timeout: 252 seconds] 00:55:15 homie [~levgue@xdsl-78-35-131-250.netcologne.de] has joined #scheme 00:56:34 -!- dnolen [~user@cpe-98-14-92-234.nyc.res.rr.com] has quit [Quit: ERC Version 5.3 (IRC client for Emacs)] 01:04:49 -!- tuubow [~adityavit@cpe-69-203-116-243.nyc.res.rr.com] has quit [Ping timeout: 240 seconds] 01:06:15 -!- otakutomo [~otakutomo@KD027083117212.ppp-bb.dion.ne.jp] has quit [Ping timeout: 240 seconds] 01:26:43 -!- Cosman246 [~cosman246@64.134.188.7] has quit [Ping timeout: 252 seconds] 01:35:42 Cosman246 [~cosman246@64.134.188.7] has joined #scheme 01:35:47 albert : in case you haven't figured it out, you recursively call `cont-frac' with one argument .. 02:16:25 realitygrill [~realitygr@adsl-71-129-61-74.dsl.irvnca.pacbell.net] has joined #scheme 02:17:04 -!- albert [~albert@adsl-71-156-44-252.dsl.irvnca.sbcglobal.net] has quit [Remote host closed the connection] 02:17:54 -!- realitygrill [~realitygr@adsl-71-129-61-74.dsl.irvnca.pacbell.net] has quit [Read error: Connection reset by peer] 02:26:16 -!- brendyn [~brendyn@123-2-73-61.static.dsl.dodo.com.au] has quit [Ping timeout: 240 seconds] 02:26:47 samertm [~samer@pool-74-96-148-16.washdc.fios.verizon.net] has joined #scheme 02:27:00 yo 02:27:20 hey guys, anyone have time to field a beginner question? 02:27:49 samertm: go ahead 02:27:52 Asked like this, no. 02:28:50 I wrote a function that computes the square root of a number, but it outputs the number as a fraction 02:29:00 how do I make it output as a decimal 02:29:03 this is my code: https://gist.github.com/1518613 02:29:04 Congratulation. 02:29:04 exact->inexact 02:29:11 You could use exact->inexact. 02:29:23 But why would you want to do that? 02:29:27 Losing precision!? 02:29:57 because 2.0000003 is more readable than 21523361/10761680 02:30:16 Then display it like that, but don't lose precision in the computing functions. 02:31:06 oh, I realize that, I just want it to output like that 02:31:17 what does exact->inexact mean, though? 02:31:24 like, how would I do that 02:31:43 Exactly what it says; Convert an exact value into an inexact one. 02:31:49 rudybot: eval (exact->inexact 3/4) 02:31:50 amoe: your sandbox is ready 02:31:51 amoe: ; Value: 0.75 02:31:54 (display (exact->inexact (root 42))) 02:31:59 rudybot: (display (exact->inexact (root 42))) 02:31:59 pjb: your r5rs sandbox is ready 02:31:59 pjb: error: reference to an identifier before its definition: root in module: 'program 02:32:03 Well, define rooot. 02:32:17 oh, that's the name of the function 02:32:28 thanks! 02:32:53 otakutomo [~otakutomo@KD027083117212.ppp-bb.dion.ne.jp] has joined #scheme 02:38:03 -!- freakazoid [~seanl@c-67-164-106-36.hsd1.ca.comcast.net] has quit [Quit: Computer has gone to sleep.] 02:43:26 brendyn [~brendyn@123-2-73-61.static.dsl.dodo.com.au] has joined #scheme 02:44:52 -!- kk` [~kk@unaffiliated/kk/x-5380134] has quit [Remote host closed the connection] 03:01:47 -!- rostayob [~rostayob@93-40-136-80.ip39.fastwebnet.it] has quit [Quit: WeeChat 0.3.5] 03:02:54 -!- samertm [~samer@pool-74-96-148-16.washdc.fios.verizon.net] has quit [Quit: Leaving] 03:03:19 dan23094 [~dan23094@c-71-206-193-42.hsd1.pa.comcast.net] has joined #scheme 03:03:49 -!- Cosman246 [~cosman246@64.134.188.7] has quit [Ping timeout: 248 seconds] 03:04:00 samertm [~samer@pool-74-96-148-16.washdc.fios.verizon.net] has joined #scheme 03:04:10 kenanb [~kenanb@94.54.237.227] has joined #scheme 03:04:18 hi folks 03:04:23 hey 03:04:30 i was wondering, what is the general opinion on gauche 03:05:42 it seems like gauche has the most complete opengl binding set among schemes -except racket- 03:07:17 infact it generally has good extension support 03:08:04 i guess the only drawback is it being a scripting language, not written with high performance in mind 03:09:55 ThePawnBreak [~quassel@94.177.108.25] has joined #scheme 03:13:13 airolson [~airolson@CPE00222d55a738-CM00222d55a735.cpe.net.cable.rogers.com] has joined #scheme 03:17:33 -!- airolson [~airolson@CPE00222d55a738-CM00222d55a735.cpe.net.cable.rogers.com] has quit [Client Quit] 03:18:48 ah, hey samertm 03:19:10 sup 03:19:28 cool, just trying to catch up with scheme community 03:19:40 all these r7rs thingies 03:19:49 and implementations i haven't had chance to look at before 03:19:56 haha I just got into scheme this morning 03:20:12 watched the first hour of the sicp lectures 03:20:28 o yeah? i hope you liked it 03:20:33 -!- samth [~samth@c-67-176-146-194.hsd1.in.comcast.net] has quit [Ping timeout: 248 seconds] 03:20:34 so I know close to nothing about these implementations 03:20:47 yeah, it's really fun 03:21:10 I was working on function that gave you the square root of a number 03:21:19 I had to re-write it 3 times before it worked correctly :P 03:21:36 :) 03:21:59 how long have you been working with scheme? 03:22:06 -!- ijp [~user@host86-169-200-186.range86-169.btcentralplus.com] has quit [Quit: The garbage collector got me] 03:23:30 i haven't really used it in any serious way before, i learnt common lisp for quite some time, and always tried to keep updated with what is going on in scheme side, yet i really want to use it nowadays 03:23:56 -!- dan23094 [~dan23094@c-71-206-193-42.hsd1.pa.comcast.net] has quit [Quit: Leaving] 03:25:16 i always found it cooler than cl in some ways, but the cross-implementation library support is a little lacking 03:26:19 I've heard that library support is a bit lackluster overall for scheme 03:26:46 it's kind of confusing to get into too, cause there are so many implementations and it's hard to choose between them 03:26:56 i would recommend going through SICP with eli bendersky's blog 03:27:32 the lectures are good too 03:27:45 it doesn't really matter which one you choose for sicp 03:27:56 it's not like c, where you basically just use gcc or visual studio 03:28:10 thanks for the tip, tippenein 03:28:17 I just downloaded some mit-scheme thing 03:28:23 it is cool 03:28:37 it has its own editor, called edwin 03:28:44 which i love using 03:29:16 hahah I haven't tried it 03:29:26 I just run the interpreter from emacs 03:29:29 infact i guess the editor they use in sicp is also edwin 03:29:33 i could be wrong though 03:29:36 yeah it is 03:31:11 did you go through sicp? 03:32:55 for some time, yes, but i was rushing to create some stupid useless gui stuff etc that i dropped at some point, and started digging library stuff 03:33:05 -!- MrFahrenheit [~RageOfTho@users-38-249.vinet.ba] has quit [Ping timeout: 252 seconds] 03:33:17 i will watch all of it some day though 03:33:22 soon, i hope 03:34:37 i am not sure if any lisp user haven't at least skimmed sicp, probably even sussman and abelson watch it time to time :p 03:35:20 haha 03:35:30 -!- cky [~cky@fsf/member/cky] has quit [Ping timeout: 252 seconds] 03:35:48 should I be following the videos with the book? 03:36:15 probably, yes. but i am not the guy to ask this since i haven't done it myself 03:36:38 yeah haha, I need to buy it then 03:36:52 which means I need to get money 03:36:58 I only have it as a pdf 03:37:30 bleh I'll buy it later 03:37:36 I already have too many books 03:37:41 :) 03:41:29 does anyone have idea on the status of ffi in mit-scheme btw? 03:41:30 cky [~cky@fsf/member/cky] has joined #scheme 03:42:43 it even have a documentation for the ffi but it is not linked through the main site, this makes me think ffi layer is not really good enough yet to be used by users 03:44:43 -!- samertm [~samer@pool-74-96-148-16.washdc.fios.verizon.net] has quit [Quit: sleep] 03:46:20 samth [~samth@c-67-176-146-194.hsd1.in.comcast.net] has joined #scheme 03:57:41 -!- samth [~samth@c-67-176-146-194.hsd1.in.comcast.net] has quit [Ping timeout: 248 seconds] 04:01:18 jrslepak [~jrslepak@c-24-12-144-42.hsd1.il.comcast.net] has joined #scheme 04:08:32 jonrafkind [~jon@jonr5.dsl.xmission.com] has joined #scheme 04:13:29 -!- jao [~user@pdpc/supporter/professional/jao] has quit [Ping timeout: 240 seconds] 04:15:59 -!- cky 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[~kk@unaffiliated/kk/x-5380134] has quit [Remote host closed the connection] 18:17:31 kk` [~kk@77.107.164.131] has joined #scheme 18:17:31 -!- kk` [~kk@77.107.164.131] has quit [Changing host] 18:17:31 kk` [~kk@unaffiliated/kk/x-5380134] has joined #scheme 18:29:25 teurastaja [~chatzilla@modemcable136.81-177-173.mc.videotron.ca] has joined #scheme 18:29:44 im having troubles with my definition of vector-zip 18:31:47 apparently, (define (vector-zip vec) (apply map vector (vector->list vec))) does not work 18:33:46 ping...? 18:34:37 what is vector-zip suppose to do? 18:35:15 same as zip but for vectors 18:35:30 i dont know what zip does 18:36:46 you sure you dont want (define (vector-zip vec) (apply map vector (zip (vector->list vec)))) then ? 18:39:12 http://srfi.schemers.org/srfi-1/srfi-1.html#Miscellaneous 18:39:13 or even (define (vector-zip vec) (list->vector (apply map vector (zip (vector->list vec))))) 18:39:26 it takes a list of lists 18:39:48 it does sort of a matrix transpose 18:40:33 zip clist1 clist2 ... -> list 18:40:35 is: (lambda lists (apply map list lists)) 18:41:19 rudybot: (define (list-zip . lists) (apply map list lists)) 18:41:19 pjb: Done. 18:41:29 rudybot: (list-zip '(1 2 3) '(a b c)) 18:41:29 pjb: ; Value: {{1 a} {2 b} {3 c}} 18:41:53 rudybot: (define (vector-zip . vectors) (apply map vector (map vector->list vectors))) 18:41:54 pjb: Done. 18:42:12 rudybot: (vector-zip (vector 1 2 3) (vector 'a 'b 'c)) 18:42:13 pjb: ; Value: {#(1 a) #(2 b) #(3 c)} 18:44:08 -!- confab [~win7@c-71-193-9-153.hsd1.ca.comcast.net] has quit [Quit: leaving] 18:45:58 [root@localhost ~]# gosh /home/samuel/Documents/sudoku.ss 18:46:00 gosh: "error": vector required, but got (#(#(#(9 5 3) #(9 5 3) #(9 5 3))) #(#(#(5 3 4) #(5 3 4) #(5 3 4))) #(#(#(3 4 1) #(3 4 1) #(3 4 1)))) 18:46:15 So what? 18:47:09 rudybot: (define (vector-zip . vectors) (list->vector (apply map vector (map vector->list vectors)))) 18:47:09 pjb: Done. 18:47:12 rudybot: (vector-zip (vector 1 2 3) (vector 'a 'b 'c)) 18:47:12 pjb: ; Value: #(#(1 a) #(2 b) #(3 c)) 18:47:22 http://pastebin.com/04SunPKt 18:47:35 heres the whole code 18:47:49 So what? 18:47:56 still debugging make-grid 18:48:18 If you cannot express "what", you'll have a hard time debugging... 18:48:21 i pasted the error 18:48:37 What does the error mean for you? 18:48:41 it comes from vector-zip 18:48:54 So what? 18:49:14 I didn't asked so where from? did I? 18:49:15 it means it gets a list where it expects a vector 18:49:20 Right. 18:49:37 So your specification of vector-zip was wrong. It is not like list-zip. 18:49:49 What is the specification of vector-zip? 18:50:11 -!- zhangkaizhao [~zhangkaiz@27.47.22.207] has quit [Quit: ] 18:50:33 Notice that both leppie and I gave you a correct implementation for vector-zip (I gave you two, because you didn't specify it precisely enough). 18:50:50 -!- ASau` [~user@89-178-141-75.broadband.corbina.ru] has quit [Quit: off] 18:51:22 they dont work i tried them on gauche 18:51:40 oh! 18:52:04 its not even seperated the way i want it 18:53:52 -!- phax [~phax@unaffiliated/phax] has quit [Quit: Leaving] 18:55:34 (define (vector-zip vec) 18:55:34 (apply map vector (vector (vector-map vector->list vec)))) 18:55:43 now got another error im narrowing down 18:55:52 That returns a list, not a vector. You seem to be expecting a vector. 18:56:47 yes and im going to lose my nerves 18:57:18 Read what's in this irc window! Two people gave you a version that returns a vector, if you're not able to write it yourself. 18:58:21 oh i missed one sorruy 18:58:22 *sorry 18:59:07 The error message says that it expected a vector instead of a list. map returns a list. Why can't you modify vector-zip to return a vector instead of a list? 18:59:59 drwho [~drwho@c-68-81-125-196.hsd1.pa.comcast.net] has joined #scheme 19:00:02 Otherwise, notice how scheme (and lisp in general) are strongly typed programming languages. 19:00:35 While you don't have to indicate to the compiler the type of your objects, they still have a type and the system is still checking the types (if only at run-time). 19:00:47 why doesnt srfi-43 have vector-iota? its trivially defined: 19:00:52 (define (vector-iota n . args) 19:00:54 (let ([v (make-vector n)]) 19:00:54 So when programming in scheme, you must be aware of the types of your objects like in any other programming language. 19:00:56 (if (null? args) 19:00:57 (do ([i 0 (+ i 1)]) ((>= i n) v) (vector-set! v i i)) 19:00:58 (receive (start step) (values (car args) (cdr args)) 19:01:00 (let ([step (if (null? step) 1 (car step))]) 19:01:02 (do ([i 0 (+ i 1)] [j start (+ j step)]) ((>= i n) v) 19:01:04 (vector-set! v i j))))))) 19:01:22 teurastaja: it's trivial, but the point of a library is to collect functions so that you don't have to copy-and-paste them in all your programs. 19:01:44 or vice versa, it should have it if not. :-) 19:01:59 Perhaps its's in another library? 19:02:06 its not 19:02:15 i had to define it myself 19:02:18 Or perhaps there's a list-iota and you can just write: (vector->list (list-iota n)) 19:02:32 it was so easy that i wonder why it isnt in srfi-43 19:02:34 Or perhaps there's a list-iota and you can just write: (list->vector (list-iota n)) ; I mean. 19:02:43 teurastaja: make a proposal to add it. 19:02:53 yes iota is defined in srfi-1 19:03:15 i dont like converting i try to avoid it 19:04:02 (define (vector-iota n . args) (list->vector (apply iota n args))) ; and forget about it. 19:04:25 what the hell is this?: 19:04:25 [root@localhost ~]# gosh /home/samuel/Documents/sudoku.ss 19:04:26 gosh: "error": pair required, but got #(#(#(#0=#(#(3 4 1) #(3 4 1) #(3 4 1))) #(#1=#(#(9 5 3) #(9 5 3) #(9 5 3))) #(#2=#(#(5 3 4) #(5 3 4) #(5 3 4)))) #(#(#2#) #(#0#) #(#1#)) #(#(#0#) #(#2#) #(#1#))) 19:04:39 Now it says you it expects a list, not a vector. 19:04:48 Make up your mind! Do you want lists or vectors? 19:04:54 -!- kk` [~kk@unaffiliated/kk/x-5380134] has quit [Remote host closed the connection] 19:04:57 vectors 19:05:07 Then don't use functions that expect lists... 19:05:22 i dont get why theres so many errors of this sort in my code 19:05:38 Also, why are you working at the shell? You should be working inside the scheme repl, and debug it from there. 19:05:45 i prefer my version of vector-iota, not you? 19:05:50 teurastaja: that's because you're not a scheme programmer yet :-) 19:06:07 teurastaja: I'm lazy. If iota works, why should I re-implement it? 19:06:43 pjb++ 19:06:49 teurastaja: don't you want to use Racket instead? It has a nice debugger. 19:06:54 because i wrote the whole code before using any compiler/interpreter 19:07:00 teurastaja: that's an error. 19:07:07 i know 19:07:29 teurastaja: to debug it, test each function in turn, from the bottom up (test the callees before the callers). 19:07:37 i cant install a scheme interpreter on my itouch... 19:07:38 mark__ [~markskilb@host86-137-226-9.range86-137.btcentralplus.com] has joined #scheme 19:07:38 also it is far easier to see the intent of pjb's and most importantly satisfy oneself it is correct 19:07:44 teurastaja: oh, I see. 19:07:49 -!- mark__ is now known as markski1beck 19:08:33 i installed a command line but gcc is hard to install 19:08:58 on itouch 19:09:09 teurastaja: but doesn't our scheme have a interactive REPL? 19:09:18 oh, and i wanted my code to be as portable as possible 19:09:34 That's irrelevant. (but important). 19:09:40 by "our scheme" you mean gauche? 19:10:36 I meant your scheme, the scheme you're using. Is it gauche? 19:10:45 its my first real/useful scheme program 19:11:13 gauche 19:11:18 yes i use gauche (a locally made scheme :P) 19:11:18 Oops. Sorry. 19:11:50 im 1h30 from montreal 19:11:56 quebec city 19:12:09 -!- markski1beck [~markskilb@host86-137-226-9.range86-137.btcentralplus.com] has quit [Ping timeout: 240 seconds] 19:12:10 but thats irrelevant ;) 19:13:53 i wonder why montreal is so schemy 19:14:53 quebec city too 19:15:39 Marc Feeley? :) 19:15:49 teurastaja: i'd put it down to good taste 19:15:54 That's funny, I don't find gauche in the appstore. I've got pixie scheme, and gambit. 19:16:04 In any case, can't you use a real computer to program? 19:16:41 i can but i hate it. i prefer to think free of any plug 19:16:58 wander around... 19:17:34 marc feeley is just one of the many world-class schemers here 19:18:26 yeah :) 19:18:27 just by looking at university professors in my province... 19:18:42 teurastaja: is there much work in CL/Scheme around Qc? 19:18:43 theres one that lives in my neighbourhood 19:19:23 well... r7rs is made here i think 19:19:42 I am probably 1 in 5 Schemers in the entire southern african continent... 19:19:57 lol 19:20:00 anyone in Toronto? :| 19:20:09 used to live in toronto 19:20:14 there are well known south africans outside south africa though 19:20:16 more exactly mississauga 19:20:24 teurastaja: close enough :) 19:20:53 teurastaja: i see more interesting job postings in Europe than here. Ontario seems technologically conservative. 19:21:29 teurastaja: everybody's too busy chasing the dollar maybe to actually make work interesting. 19:21:36 quebec is desparatly seeking professionnals 19:21:42 is there a minimal subset of scheme that most dialects support, and is it practical enough to write 'portable' code (i.e. code that can be modified slightly before working on another scheme compiler)? 19:22:00 simon: woudln't one of the stndards do? like r5rs 19:22:05 simon, speak french? 19:22:09 simon: i thought it was the point of them 19:22:17 qu1j0t3, I'm asking. which standards are there? 19:22:23 simon: r*rs 19:22:25 teurastaja, unfortunately not. 19:22:27 qu1j0t3, cool. 19:22:35 simon is french 19:22:57 I'm not french. 19:23:02 In "A Fish Named Wanda", there was a Simon who was English. 19:23:09 simon: for example http://schemers.org/Documents/Standards/R5RS/ is the basis for a few schemes (which extend it, usually) 19:23:10 He spoke Italian, but not French. 19:23:18 chibi scheme 19:24:16 a minimalistic, r7rs draft implementation 19:24:42 markski1beck [~markskilb@host86-137-69-187.range86-137.btcentralplus.com] has joined #scheme 19:25:04 since everybody seems to want to implement r7rs.... 19:25:22 fschwidom [~fschwidom@46.115.24.221] has joined #scheme 19:25:35 is there any r7rs draft to be made after the 5th? 19:26:11 confab [~win7@c-71-193-9-153.hsd1.ca.comcast.net] has joined #scheme 19:26:36 when is it supposed to be released? 19:26:50 dont answer "this year" please 19:27:09 i mean the next one 19:27:35 i was told early this year it was hopefully by the end of this year 19:28:37 jcowan ought to know; he's the editor, or one of the editors. 19:28:43 where can i make an srfi-43 proposal? (vector-iota) 19:31:13 *offby1* stares blankly 19:33:16 ASau [~user@93-80-91-33.broadband.corbina.ru] has joined #scheme 19:39:38 -!- brendyn [~brendyn@123-2-73-61.static.dsl.dodo.com.au] has quit [Ping timeout: 240 seconds] 19:41:08 brendyn [~brendyn@123-2-73-61.static.dsl.dodo.com.au] has joined #scheme 19:45:59 airolson [~airolson@CPE00222d55a738-CM00222d55a735.cpe.net.cable.rogers.com] has joined #scheme 19:46:54 anyone installed gambit on iphone/itouch from source? 19:47:25 geef [~king@108-215-232-154.lightspeed.hstntx.sbcglobal.net] has joined #scheme 19:47:58 is there any point to (define 'abc 10) ? 19:48:17 this shouldnt work... 19:48:27 no it should 19:48:29 when i do that and (define abc 5) it changes the behavior of lots of stuff 19:48:35 but drop the quoet 19:48:43 the quote is useless 19:48:59 for symbols 19:49:43 probably because 5 and 10 are different? 19:50:38 as i said: quoting symbols is useless. just like quoting numbers 19:50:49 well (quote 5) returns 10 and 'h returns an error instead of h 19:51:05 albert [~albert@adsl-71-156-44-252.dsl.irvnca.sbcglobal.net] has joined #scheme 19:51:07 dont quote 19:51:15 what do you want to do? 19:51:28 heh, he redefined "quote" 19:51:42 nothing, i was just confused 19:51:52 rudybot: (define 'abc 10) 19:51:52 *offby1: your sandbox is ready 19:51:52 *offby1: Done. 19:52:00 rudybot: 'uh-oh 19:52:00 *offby1: error: reference to an identifier before its definition: uh-oh in module: 'program 19:52:11 -!- ASau [~user@93-80-91-33.broadband.corbina.ru] has quit [Read error: Connection reset by peer] 19:52:14 rudybot: '17 19:52:14 *offby1: ; Value: 10 19:52:25 rudybot: why are you so dumb? 19:52:25 *offby1: where are you? Brazil? 19:52:34 rudybot: init racket 19:52:35 *offby1: your sandbox is ready 19:52:38 rudybot: '17 19:52:38 *offby1: ; Value: 17 19:52:41 *whew* 19:52:56 -!- gravicappa [~gravicapp@ppp91-77-176-17.pppoe.mtu-net.ru] has quit [Remote host closed the connection] 19:53:02 perhaps your average scheme should give a warning when you redefine "quote" 19:53:26 ASau [~user@89-178-141-163.broadband.corbina.ru] has joined #scheme 19:53:57 the point is: quote is useful for referencing literal data. symbols and numbers already are literal 19:54:06 so quoting them is useless 19:57:05 however, lambda arguments are implicitly quoted so you can refer to them like a literal list and use the dot (".") like a literal list of arguments 19:58:19 i think i understand now, thanks ! 19:58:38 *simon* realized SICP had a video lecture series. 19:59:01 choas [~lars@p5795CCE7.dip.t-dialin.net] has joined #scheme 19:59:09 quoting an expression makes it a list instead of applying its arguments 19:59:44 ThePawnBreak [~quassel@94.177.108.25] has joined #scheme 19:59:57 example: 20:00:28 rudybot: (display 1 2 3) 20:00:28 teurastaja: your sandbox is ready 20:00:28 teurastaja: error: display: expects 1 to 2 arguments, given 3: 1 2 3 20:00:33 oops 20:00:35 lol 20:00:46 bad example 20:00:58 rudybot: (display '(1 2 3)) 20:00:58 pjb: ; stdout: "(1 2 3)" 20:00:59 rudybot: (cons 1 2 ) 20:01:00 teurastaja: ; Value: (1 . 2) 20:01:09 rudybot: '(cons 1 2) 20:01:09 teurastaja: ; Value: (cons 1 2) 20:01:45 rudybot: (car '(cons 1 2)) 20:01:45 teurastaja: ; Value: cons 20:01:49 damn it 20:02:04 oh thats what i wanted nevermind 20:02:09 rudybot: (car (cons 1 2)) 20:02:09 teurastaja: ; Value: 1 20:02:25 see 20:02:25 ? 20:03:45 an expression is a list that applies the car to each element of its cdr 20:04:05 if you quote it, it does not apply 20:04:26 therefore it remains a list 20:05:01 42 is an expression too... 20:05:10 i meant application 20:06:34 homie [~levgue@xdsl-78-35-152-133.netcologne.de] has joined #scheme 20:06:36 in scheme, applications are lists that apply the car to every of its cdr 20:06:37 -!- albert [~albert@adsl-71-156-44-252.dsl.irvnca.sbcglobal.net] has quit [Remote host closed the connection] 20:09:58 -!- choas [~lars@p5795CCE7.dip.t-dialin.net] has quit [Ping timeout: 255 seconds] 20:11:18 -!- jrslepak [~jrslepak@c-24-12-144-42.hsd1.il.comcast.net] has quit [Quit: This computer has gone to sleep] 20:12:59 ?! 20:15:14 In scheme, nobody can hear you scream 20:19:15 sphex_ [~nobody@74.127.215.20] has joined #scheme 20:21:36 -!- sphex [~nobody@74.127.215.20] has quit [Ping timeout: 268 seconds] 20:24:37 -!- confab [~win7@c-71-193-9-153.hsd1.ca.comcast.net] has quit [Quit: leaving] 20:29:43 -!- freakazoid [~seanl@c-67-164-106-36.hsd1.ca.comcast.net] has quit [Quit: Computer has gone to sleep.] 20:34:28 -!- tuubow [~adityavit@cpe-69-203-116-243.nyc.res.rr.com] has quit [Ping timeout: 276 seconds] 20:38:15 -!- drwho [~drwho@c-68-81-125-196.hsd1.pa.comcast.net] has quit [Ping timeout: 268 seconds] 20:43:40 -!- markski1beck [~markskilb@host86-137-69-187.range86-137.btcentralplus.com] has quit [Quit: Leaving] 20:47:10 -!- cky [~cky@fsf/member/cky] has quit [Quit: BRB] 20:47:49 cky [~cky@fsf/member/cky] has joined #scheme 20:53:18 I thought that was in haskell... because of the no-side-effects. 20:54:26 Hahahahaha. 20:55:06 but you'll get a nice mathematical model of you screaming :P 20:57:31 -!- ThePawnBreak [~quassel@94.177.108.25] has quit [Ping timeout: 252 seconds] 21:04:37 dnolen [~user@cpe-98-14-92-234.nyc.res.rr.com] has joined #scheme 21:05:50 -!- dnolen [~user@cpe-98-14-92-234.nyc.res.rr.com] has quit [Remote host closed the connection] 21:06:35 -!- ASau [~user@89-178-141-163.broadband.corbina.ru] has quit [Quit: off] 21:07:10 kk` [~kk@unaffiliated/kk/x-5380134] has joined #scheme 21:08:33 dnolen [~user@cpe-98-14-92-234.nyc.res.rr.com] has joined #scheme 21:14:08 hah 21:14:52 jrslepak [~jrslepak@c-24-12-144-42.hsd1.il.comcast.net] has joined #scheme 21:16:15 -!- jrslepak [~jrslepak@c-24-12-144-42.hsd1.il.comcast.net] has quit [Client Quit] 21:17:34 samth [~samth@c-67-176-146-194.hsd1.in.comcast.net] has joined #scheme 21:20:14 -!- teurastaja [~chatzilla@modemcable136.81-177-173.mc.videotron.ca] has quit [Quit: ChatZilla 0.9.87-4.1450hg.fc16 [XULRunner 9.0/20111220101118]] 21:25:00 bfg9000 [~BFV@r186-52-184-142.dialup.adsl.anteldata.net.uy] has joined #scheme 21:27:46 Rotham [~R@174.33.144.42] has joined #scheme 21:28:39 hello, i'm just learning scheme and i have a question about variable scope. consider this: (define (localscope a) (let ((var a)) (lambda (x) (eval x)))). will this capture the variable var if i use it inside whatever is handed to the lambda? 21:29:19 ASau [~user@95-24-195-82.broadband.corbina.ru] has joined #scheme 21:34:21 bfg9000: I'm fairly confident the answer is no. But do you have an example of "using it inside whatever is handed to the lambda"? 21:36:35 -!- dnolen [~user@cpe-98-14-92-234.nyc.res.rr.com] has quit [Remote host closed the connection] 21:36:50 -!- kk` [~kk@unaffiliated/kk/x-5380134] has quit [Ping timeout: 252 seconds] 21:36:53 pyro-, ((define localscope..) (define x (localscope 3) (x '(+ var 3))) 21:39:14 pyro-, does that example make any sense? 21:39:42 i'm not even sure it makes sense but if i don't use the variable it works just fine 21:41:11 jao [~user@pdpc/supporter/professional/jao] has joined #scheme 21:42:15 it does. but all of the versions of scheme here require that eval take a second argument, the enviroment in which to evaluate the expression. If your version of eval defaults to using the current dynamic enviroment, then the binding of var should be visible in '(+ var 3) 21:42:29 here = the computer i'm using atm 21:43:04 i guess so can i do (lambda (x) (eval x *something*)) to do that? 21:47:59 enviroments are not first class in scheme. there are normally ways to grab hold of fixed enviroments. maybe (scheme-report-environment 5), (null-environment 5). but those don't help you. If var isn't already visible in your testing, I'm afraid I can't think of a way to make it work 21:48:21 Maybe someone more knowlegable about such things will wake up soon :D 21:48:24 maybe i need to read more 21:48:52 i'm only up to the start of chapter 3 (SICP) 21:49:29 rumina [~rumina@88-148-245-72.bb.dnainternet.fi] has joined #scheme 21:50:18 I've read the whole of that book, and I'm dissipointed that you report the binding of var isn't visible :D what scheme machine are you using? 21:51:07 i have no idea what you mean but i assume the answer is chicken 21:52:23 dnolen [~user@cpe-98-14-92-234.nyc.res.rr.com] has joined #scheme 21:53:50 oh, chicken supports R5RS. http://www.schemers.org/Documents/Standards/R5RS/HTML/r5rs-Z-H-9.html#%_sec_6.5 21:54:00 http://tinyurl.com/79qek2q 21:54:50 the enviroment model which that rellies on, is chapter 3.2 of SICP 21:55:11 -!- rumina [~rumina@88-148-245-72.bb.dnainternet.fi] has left #scheme 21:56:09 so i think the answer is that it doesn't work. which i find dissapointing 22:05:37 tuubow [~adityavit@cpe-69-203-116-243.nyc.res.rr.com] has joined #scheme 22:06:19 any comments on gauche? 22:06:37 it seems such underrated among other implementations 22:08:04 pchrist [~spirit@gentoo/developer/pchrist] has joined #scheme 22:08:47 -!- airolson [~airolson@CPE00222d55a738-CM00222d55a735.cpe.net.cable.rogers.com] has quit [] 22:10:09 -!- samth [~samth@c-67-176-146-194.hsd1.in.comcast.net] has quit [Ping timeout: 240 seconds] 22:10:51 -!- pchrist_ [~spirit@gentoo/developer/pchrist] has quit [Ping timeout: 252 seconds] 22:14:33 -!- dnolen [~user@cpe-98-14-92-234.nyc.res.rr.com] has quit [Remote host closed the connection] 22:19:49 jrslepak [~jrslepak@c-24-12-144-42.hsd1.il.comcast.net] has joined #scheme 22:20:01 -!- jrslepak [~jrslepak@c-24-12-144-42.hsd1.il.comcast.net] has quit [Remote host closed the connection] 22:29:23 -!- ddp [~ddp@216.243.111.165] has quit [Quit: ddp] 22:30:46 ddp [~ddp@216.243.111.165] has joined #scheme 22:31:00 dnolen [~user@cpe-98-14-92-234.nyc.res.rr.com] has joined #scheme 22:42:31 -!- ddp [~ddp@216.243.111.165] has quit [Quit: ddp] 22:47:17 -!- geef [~king@108-215-232-154.lightspeed.hstntx.sbcglobal.net] has quit [Quit: Lost terminal] 22:54:06 -!- fschwidom [~fschwidom@46.115.24.221] has quit [Remote host closed the connection] 23:03:28 kk` [~kk@77.107.164.131] has joined #scheme 23:03:28 -!- kk` [~kk@77.107.164.131] has quit [Changing host] 23:03:28 kk` [~kk@unaffiliated/kk/x-5380134] has joined #scheme 23:25:24 -!- tali713 [~user@c-76-17-236-129.hsd1.mn.comcast.net] has quit [Remote host closed the connection] 23:25:24 -!- tali713` is now known as tali713 23:30:49 fantazo [~fantazo@178-191-160-249.adsl.highway.telekom.at] has joined #scheme 23:32:09 -!- mmc [~michal@178-85-131-65.dynamic.upc.nl] has quit [Ping timeout: 240 seconds] 23:49:38 something i couldn't figure out: the snow library system seems to be a little outdated and completely not used by anyone 23:50:06 the days of the uploaded packages mostly dated ~1500 days ago 23:50:40 but chibi maintainer Alex Shinn says he tries to integrate chibi in the snow system 23:51:07 is my understanding wrong somewhere? is snow used by schemers? 23:53:07 *crickets* 23:55:03 offby1: yeah, 173 online, noone chatting, its cool really, shows that all are busy coding scheme :p 23:57:12 in my case it's actually true! 23:57:43 infact i was only partly joking 23:58:08 lets say 40% :)