[racket] the Dr{Scheme,Racket} repl isn't the one in Emacs

I'm at NEScala 2013 in Philly and the speaker, Ken Vogel, was talking about functional reactive programming in the context of using a Scala project called Notebook [1] to help run global hedge funds at Bridgewater [2]. In the middle of the presentation Matthias's blog post [3] of 2009-03-29 cam

[racket] connectivity with AWS and S3?

I have a new potential project starting and I have my choice of language. It will be doing a lot of web navigation (as a user would, just faster) and it has to run in an AWS [1] environment and interact with AWS S3 buckets [3]. I know I can do this with Scala or Python, but there are aspects o

Re: [racket] Offtopic: Favorite resources for mastering SML?

There's a new OCaml book out: http://shop.oreilly.com/product/0636920024743.do Real World OCaml Functional programming for the masses By Jason Hickey, Anil Madhavapeddy, Yaron Minsky Publisher: O'Reilly Media Released: June 2013 Pages: 450 Geoff On Jul 4, 2013, at 10:57, Matthias Felleisen wro

[racket] RacketCon / hackathon question

I'm bringing my 16 year-old son to RacketCon on Sunday, since he loves Racket. It's also the weekend of my college 30th reunion. On the Saturday, he could go to the Racket hackathon, or he could go to my daytime reunion activities. I was looking at the list of things going on at the hackathon

Re: [racket] realm of racket

Racket Users list: [1]http://lists.racket-lang.org/users -- Geoffrey S. Knauth | http://knauth.org/gsk References 1. http://lists.racket-lang.org/users Racket Users list: http://lists.racket-lang.org/users

[racket] DrRacket GUI tutorial with MVC concepts?

My son, who I'm afraid/inspired to say is a DrRacket addict, in that he does much of his homework (physics, calculus, Latin, music, what-next...) in DrRacket, has read through the Racket GUI Toolkit docs at: http://docs.racket-lang.org/gui/ and presto, he has an app that can conjugate or declin

Re: [racket] DrRacket GUI tutorial with MVC concepts?

e way through the book and it's good fun. It's > amazing how little code it takes to make the "snakes" game. > > Tobias > > > Date: Sat, 14 Dec 2013 13:05:16 -0500 > From: "Geoffrey S. Knauth" > To: users@racket-lang.org > Subject: [rac

[racket] have built a symbol, now need the value of the id represented by the symbol

Our local community has a funky tax form not handled by the big tax prep vendors. So I rolled my own with Racket. It outputs LaTeX so I have something to submit all ready. Well it would, except I have goofed something up. I'm eval'ing a symbol (probably incorrect). The symbol comes not from

Re: [racket] have built a symbol, now need the value of the id represented by the symbol

; > Laurent > > > On Tue, Feb 18, 2014 at 9:54 PM, Geoffrey S. Knauth wrote: > Our local community has a funky tax form not handled by the big tax prep > vendors. So I rolled my own with Racket. It outputs LaTeX so I have > something to submit all ready. > &

Re: [racket] Racket Salon March!

Happy happy joy joy. Smart people; reminds me of BBN 15 years ago. I'm interested to hear further news of racket-mode for Emacs, since I'm a longtime Emacs user. -- Geoffrey S. Knauth | http://knauth.org/gsk On Tue, Mar 25, 2014, at 12:24, Daniel King wrote: > We'll have a

[racket] Racket at RobotsConf ?

I was listening to: http://javascriptjabber.com/105-jsj-jsconf-and-organizing-conferences-with-chris-williams/ and I liked that Chris Williams made another conference, RobotsConf, that is language agnostic: http://robotsconf.com/ Maybe Racket can join the fun they're having and show off c

[racket] i love rackunit

_ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users

[racket] jaz/mysql to db conversion happiness

I saw the new db interface and tried it with some trepidation, as I run all my general ledger applications with Racket programs and MySQL. To my amazement, after 15 minutes of editing, all of my tests passed on the first go. Great job, folks! I can't remember a more painless conversion experi

[racket] shortest paths, resource allocation/scheduling

I'm wondering if there is something in the now very rich set of Racket libraries that already does this. Let's say I have 5 points {A,B,C,D,E}. I want to interconnect all of them: {AB,AC,AD,AE,AF,BC,BD,BE,BF,CD,CE,CF,DE,DF,EF} That's 15 edges rather than the 5x5=25 that a dumb interconnect wo

Re: [racket] shortest paths, resource allocation/scheduling

Wow, Veer, Sam, Ryan, Stephen, that kind of answers my question [keeping writing], but your ideas are also very valuable! Thank you! Geoff _ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users

[racket] racket w/octave

Has anyone used racket with octave? I'm doing ops with matrices, regressions and running gradient descent algorithms, mostly in octave, but it occurred to me racket could help write and then run some of the octave code. Geoff Racket Users list: http://lists.racket-lang

[racket] Racket helped me get a job

== I was writing this to a G+ friend trying out Racket, and I figured I'd share it with you: I have to make another comment about Racket, which I haven't even shared with the Racket community yet. Just before Christmas I had an all-day series of job interviews at a local AI company. I thought I

[racket] advice given to friend trying Racket

== A G+ friend learning Lisp decided to try Racket. I gave him this advice, which I hope does not have errors: I tend to write more Racket programs than in Common Lisp. I read the Steve Yegge blog entry above [1], and it is mostly true if a little overblown, but because of it I have to mention

[racket] slideshow, footer

Is there a standard way that people use to add a footer and/or image to each slideshow slide? I'm sure I can roll my own, but I was wondering if there were examples in the wild so I don't reinvent the wheel. (I'm giving a CAP safety briefing tomorrow morning, and while I could do it in PowerPo

Re: [racket] slideshow, footer

Perfect, thanks Stephen and Asumu! My search & rescue pilots and ground teams thank you too! --Geoff On Apr 13, 2012, at 16:19 , Stephen Chang wrote: > current-slide-assembler can also do what you want: > http://docs.racket-lang.org/slideshow/Configuration.html?q=assembler#(def._((lib._slidesh

[racket] Racket equivalent to RubyMotion

I'm writing in Racket, after months of Scala, which was nice too, in a different way. Today I found out about RubyMotion, and wondered how hard it would be to do do the same thing in Racket, i.e., write iOS apps in Racket, and write Android apps in Racket. In know I can write Android apps in S

[racket] Emacs keybindings for DrRacket on Win8 platform

I usually run DrRacket on *nix platforms. When I run DrRacket on a Windows computer, how do I get my beloved Emacs keybindings? I've looked, but can't find the preference. Thanks, Geoff Racket Users list: http://lists.racket-lang.org/users

Re: [racket] Emacs keybindings for DrRacket on Win8 platform

NEVER MIND. I figured it out. [Uncheck the Enable keybindings in menus preference.] --Geoff On Sep 9, 2014, at 11:32 , Geoffrey S. Knauth wrote: > I usually run DrRacket on *nix platforms. When I run DrRacket on a Windows > computer, how do I get my beloved Emacs keybindings? I

[racket] pregexp to detect Japanese characters

._30%29%29 -- Geoffrey S. Knauth | http://knauth.org/gsk References 1. http://www.localizingjapan.com/blog/2012/01/20/regular-expressions-for-japanese-text/ 2. http://docs.racket-lang.org/reference/regexp.html#%28elem._%28rxex._30%29%29 Racket Users list: http://li

Re: [racket] pregexp to detect Japanese characters

; s) ; Japanese Symbols and Punctuation (regexp-match #rx"[\u31F0-\u31FF\u3220-\u3243\u3280-\u337F]" s) ; Misc. Japanese Symbols/Chars (regexp-match #rx"[\uFF01-\uFF5E]" s))) ; Alphanumeric and Punctuation (Full Width) On Sep 16, 2014, at 09:22 , Geoffrey S. Kn

[racket] didn't know HN used Racket

I visited HackerNews [1]. Unfortunately it was down, but you can following @HNStatus on Twitter. In that feed, I saw: 12h ago: Quick system reboot to update kernel, HN code, and Racket runtime. Be back soon. 11h ago: Now for Racket update. 11h ago: All done. [1] https://news.ycombinator.co

Re: [racket] didn't know HN used Racket

BTW HN is up now. > On Nov 7, 2014, at 13:51 , Geoffrey S. Knauth wrote: > > I visited HackerNews [1]. Unfortunately it was down, but you can following > @HNStatus on Twitter. In that feed, I saw: > > 12h ago: Quick system reboot to update kernel, HN code, and Racket r

Re: [racket] learning recursion

rtmentalize computation to the thing you are looking at right now, combined with the result of similar computations that are aggregated elegantly through recursion. Later you learn how to make recursive calls efficient. -- Geoffrey S. Knauth | http://knauth.org/gsk [1] http://www.ccs.neu.e

Re: [racket] How to draw a Rubik's cube?

;t good at handling 3D things. I recommending using Racket with OpenGL to make a nice Rubik's cube. -- Geoffrey S. Knauth | http://knauth.org/gsk Racket Users list: http://lists.racket-lang.org/users

[racket-users] compliment given to Racket's macro system from Haskell programmer

See: http://www.quora.com/What-are-the-main-weaknesses-of-Haskell-as-a-programming-language "Its compile-time meta-programming facility, Template Haskell, is occasionally useful, but it’s a poor substitute

[racket] data mining business information on web sites w/Racket

I'm evaluating whether to use Racket to data mine hundreds of websites pulling out business information within an industry. I think Racket is up to it, but I'm wondering if anyone else has had experiences positive or negative. I've used other tools to do rudimentary digging, but this project i

Re: [racket] data mining business information on web sites w/Racket

Neil and Noel, all great advice, thank you. And I'm not surprised you were the two who answered first! --Geoff _ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users

Re: [racket] Rackets memory usage

I wonder about 64 vs. 32 bit. With other development environments, when people note high memory usage I often see the vendor recommend switching from 64 to 32 bit. Geoffrey S. Knauth http://knauth.org/gsk On May 28, 2011, at 10:50, Matthew Flatt wrote: > At Thu, 26 May 2011 21:02:35 +0

[racket] find-seconds, second : (integer-in 0 61)

Just curious. The contact for find-seconds parameter second (integer-in 0 61) instead of (integer-in 0 59). [1] The Java definition of a Date [2] states "the values 60 and 61 occur only for leap seconds and even then only in Java implementations that actually track leap seconds correctly," whi

Re: [racket] Gambit Scheme for the iPhone and iPad

is some sort of community, like Scratch, so people can share their wizardry, but for that the ability to organize and modularize scripts would need to be improved. The downside is if people get too clever, Apple could get hyperparental and pull the plug. So an Android app could be useful too.

[racket-users] unstable/gui/slideshow - tabular

I’m preparing a slideshow for this weekend, and I had been using unstable/gui/slideshow to get tabular. My Racket couldn’t find it, so I rebuilt from source, and I still can’t find it. Am I looking in the wrong place, is it gone, should I be using something else? Geoff -- You received this

Re: [racket-users] unstable/gui/slideshow - tabular

t; > The `unstable-lib` package, which provides `unstable/gui/slideshow` is > not included in the main distribution anymore. It needs to be installed > explicitly: > >raco pkg install unstable > > Vincent > > > On Tue, 10 Nov 2015 17:46:29 -0600, > Geoffr