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12:19 samth: tewk_, ping
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15:16 vu3rdd: Is there a way to create default parameters for functions? Like for eg: I define a (range min max step) function. If I omit step, it should assume a default value of 1 for step.
15:17 jay-mccarthy: (define (range min max [step 1])
15:18 vu3rdd: jay-mccarthy: Thanks.
15:19 jay-mccarthy: file:///Users/jay/Dev/scm/plt/doc/reference/define.html
15:19 jay-mccarthy: whoops
15:19 jay-mccarthy: http://docs.racket-lang.org/reference/define.html
15:19 jay-mccarthy: that's the syntax of define
15:20 vu3rdd: thanks, jay-mccarthy
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16:34 objorn: What is the differences between the Racket language and Scheme?
16:35 jay-mccarthy: +inf.0
16:36 objorn: I'm sorry?
16:37 jonrafkind: he means a lot
16:37 mao: What do you mean by "Scheme"?
16:37 mao: r5rs? r6rs?
16:38 jonrafkind: r1rs? r2rs? r3rs? r4rs?
16:38 mao: ^
16:39 jonrafkind: objorn, racket comes with a lot of bells and whistles that Scheme doesn't specify
16:40 jonrafkind: the evaluation model is the same I guess, except for macros
16:41 objorn: I'm not sure, I'm just starting to go through SICP. I actually wanted to learn Haskell to begin with and am still wanting to learn it, but I'm not seeing the equivalent SICP or HTDP for Haskell. One goal of mine is create a web site, but I want to have a decent understanding of how to solve problems through programming.
16:42 objorn: This includes learning about data structures and algos, concurrency, threading, database theory, etc.
16:42 mao: Well, HTPD is more racket-oriented, I guess
16:42 mao: for SICP, it doesn't really matter which implementation you would use
16:43 mao: For haskell there is a Real World Haskell
16:43 objorn: mao: It doesn't explain much theory
16:43 mao: but it's harder than SICP/HTDP
16:43 mao: yes, true
16:43 objorn: I have most of the books, but none of them go into theory like SICP.
16:43 mao: Yes, SICP is really good.
16:44 mao: And you can use SICP with racket
16:44 objorn: This is good to know, I would like to build something as I continue through this book.
16:45 objorn: I have a feeling I will be reading it for about two months, it's rather long.
16:46 mao: You will spend more than two month on it
16:46 objorn: I hope no more than three
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19:45 jonrafkind: is there a way to get line numbers in drracket?
20:04 samth: line numbers from what?
20:07 jonrafkind: for each row in the definitions text
20:07 jonrafkind: like line numbers on the left hand side
20:07 jonrafkind: http://www.wisdomandwonder.com/link/1808/adding-a-gutter-to-drscheme
20:07 jonrafkind: i foundt his and am trying to turn it into a tool
20:09 samth: ah, ok
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