# General **URL:** https://racket.discourse.group/c/general/12.md?page=17 [Latest](https://racket.discourse.group/latest.md) · [Categories](https://racket.discourse.group/categories.md) · [Tags](https://racket.discourse.group/tags.md) **Page:** 18 --- ## [Installing Racket from package repositories](https://racket.discourse.group/t/installing-racket-from-package-repositories/1630)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 5\ **Last updated:** [January 12, 2023, 4:18pm UTC](https://racket.discourse.group/t/installing-racket-from-package-repositories/1630 "2023-01-12T16:18:43Z")
Hi, A problem new users sometimes run into is they install an old version of Racket (or minimal racket) from package repositories. (see Racket Packaging Status below) I was reading about Helix Editor and I noticed that… --- ## [You are invited to the First Congress for Attribution-Based Economics!](https://racket.discourse.group/t/you-are-invited-to-the-first-congress-for-attribution-based-economics/1566)
**Author:** [@countvajhula](https://racket.discourse.group/u/countvajhula)\ **Replies:** 1\ **Last updated:** [January 11, 2023, 8:29pm UTC](https://racket.discourse.group/t/you-are-invited-to-the-first-congress-for-attribution-based-economics/1566 "2023-01-11T20:29:01Z")
(crossposted to Emacs Reddit) Dear friends, Following up on my recent talk at EmacsConf (youtube| toobnix| Q&A), we are prototyping a new economic system in the open source community, and your participation is essentia… --- ## [Description of Racket Distribution for download and package repo pages?](https://racket.discourse.group/t/description-of-racket-distribution-for-download-and-package-repo-pages/1608)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 24\ **Last updated:** [January 10, 2023, 7:28pm UTC](https://racket.discourse.group/t/description-of-racket-distribution-for-download-and-package-repo-pages/1608 "2023-01-10T19:28:19Z")
I think I’ve gone mad but I thought we had a summary of what was in the Racket distribution somewhere on https://racket-lang.org ? @capfredf has kindly created a package for flathub, but it makes me think the lack of a… --- ## [Racket meet-up Saturday 7 January at 18:00 UTC :racket:](https://racket.discourse.group/t/racket-meet-up-saturday-7-january-at-18-00-utc/1547)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 1\ **Last updated:** [January 7, 2023, 6:02pm UTC](https://racket.discourse.group/t/racket-meet-up-saturday-7-january-at-18-00-utc/1547 "2023-01-07T18:02:07Z")
Racket meet-up Saturday 7 January at 18:00 UTC :racket: At this meet-up: Show and tell News & rumours AOB Meet-up time at your location: 2023-01-07T18:00:00Z (UTC) (Discourse should convert this for you) In the 'Rac… --- ## [\[TFP 2023 2nd Call for papers\] 24th International Symposium on Trends in Functional Programming](https://racket.discourse.group/t/tfp-2023-2nd-call-for-papers-24th-international-symposium-on-trends-in-functional-programming/1474)
**Author:** [@peter88](https://racket.discourse.group/u/peter88)\ **Replies:** 7\ **Last updated:** [January 2, 2023, 9:57pm UTC](https://racket.discourse.group/t/tfp-2023-2nd-call-for-papers-24th-international-symposium-on-trends-in-functional-programming/1474 "2023-01-02T21:57:59Z")
TFP 2023 -- 2nd Call for Papers (trendsfp.github.io) Important Dates Submission deadline: pre-symposium, full papers, Wednesday 23rd November, 2022 Submission deadline: pre-symposium, draft papers, Friday 16th December… --- ## [\[TFP 2023 Call For Participation\] 24th International Symposium on Trends in Functional Programming](https://racket.discourse.group/t/tfp-2023-call-for-participation-24th-international-symposium-on-trends-in-functional-programming/1609)
**Author:** [@peter88](https://racket.discourse.group/u/peter88)\ **Replies:** 0\ **Last updated:** [January 2, 2023, 6:05pm UTC](https://racket.discourse.group/t/tfp-2023-call-for-participation-24th-international-symposium-on-trends-in-functional-programming/1609 "2023-01-02T18:05:12Z")
TFP 2023 -- Call For Participation (trendsfp.github.io) Dates Registration: Friday 6th January, 2023 TFPIE Workshop: Thursday 12th January, 2023 TFP Symposium: Friday 13th - Sunday 15th January, 2023 The Symposi… --- ## [Speed difference between GUI and Terminal](https://racket.discourse.group/t/speed-difference-between-gui-and-terminal/1550)
**Author:** [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\ **Replies:** 17\ **Last updated:** [December 14, 2022, 9:46am UTC](https://racket.discourse.group/t/speed-difference-between-gui-and-terminal/1550 "2022-12-14T09:46:00Z")
Hello, i ran an intensive computation that compute a logical expression put in disjonctive minimal form that takes 14' to compute in GUI. and i experienced problems displaying on macintosh the subscript character k: ₖ … --- ## [Why is DrRacket so much faster on Apple M1/M2?](https://racket.discourse.group/t/why-is-drracket-so-much-faster-on-apple-m1-m2/1542)
**Author:** [@Dexter](https://racket.discourse.group/u/Dexter)\ **Replies:** 5\ **Last updated:** [December 13, 2022, 6:20pm UTC](https://racket.discourse.group/t/why-is-drracket-so-much-faster-on-apple-m1-m2/1542 "2022-12-13T18:20:39Z")
I have two systems I use primarily for coding: an Apple MacBook Air M2 and a Lenovo P16 (i9-12950HX + Nvidia A4500). On the M2, DrRacket FLYS. It's nearly as smooth and as responsive as Sublime Text. Executing Racket cod… --- ## [Programming Languages: Application and Interpretation, 3rd Edition](https://racket.discourse.group/t/programming-languages-application-and-interpretation-3rd-edition/1546)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 0\ **Last updated:** [December 9, 2022, 9:45pm UTC](https://racket.discourse.group/t/programming-languages-application-and-interpretation-3rd-edition/1546 "2022-12-09T21:45:13Z")
Programming Languages: Application and Interpretation From the preface; I have also written this book with working programmers in mind. Many of them may have not had a formal computer science education, or at least on… --- ## [I want to donate the racket.wiki domain](https://racket.discourse.group/t/i-want-to-donate-the-racket-wiki-domain/1534)
**Author:** [@winny](https://racket.discourse.group/u/winny)\ **Replies:** 1\ **Last updated:** [December 8, 2022, 8:59pm UTC](https://racket.discourse.group/t/i-want-to-donate-the-racket-wiki-domain/1534 "2022-12-08T20:59:27Z")
Beginning of this year I bought racket.wiki to host a wiki for the community. I've lost interest in this project, so I wish to donate this domain to the community. racket.wiki is registered with gandi. The registratio… --- ## [ChatGPT knows a ton about Racket apparently](https://racket.discourse.group/t/chatgpt-knows-a-ton-about-racket-apparently/1539)
**Author:** [@slaymaker1907](https://racket.discourse.group/u/slaymaker1907)\ **Replies:** 4\ **Last updated:** [December 7, 2022, 2:55pm UTC](https://racket.discourse.group/t/chatgpt-knows-a-ton-about-racket-apparently/1539 "2022-12-07T14:55:06Z")
I asked it "Implement the Bakery algorithm in the Racket programming language." AND IT ACTUALLY WORKED! I haven't reviewed the code in detail for bugs, but it's incredible that it managed to do anything at all. #lang ra… --- ## [Racket meet-up Saturday 3 December at 18:00 UTC :racket:](https://racket.discourse.group/t/racket-meet-up-saturday-3-december-at-18-00-utc/1460)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 4\ **Last updated:** [December 4, 2022, 3:22pm UTC](https://racket.discourse.group/t/racket-meet-up-saturday-3-december-at-18-00-utc/1460 "2022-12-04T15:22:14Z")
Racket meet-up Saturday 3 December at 18:00 UTC :racket: At this meet-up: Show and tell News & rumours AOB Meet-up time at your location: 2022-12-03T18:00:00Z (UTC) (Discourse should convert this for you) In the 'Rac… --- ## [ACM access to A Programmable Programming Language](https://racket.discourse.group/t/acm-access-to-a-programmable-programming-language/1515)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 3\ **Last updated:** [November 28, 2022, 6:55pm UTC](https://racket.discourse.group/t/acm-access-to-a-programmable-programming-language/1515 "2022-11-28T18:55:34Z")
Hi, I’ve noticed that the full text of the article is not available from the acm. I thought it was OA, but must have got it wrong. Is the copy posted by Shriram correct? Best Stephen https://cs.brown.edu/~sk/Public… --- ## [Racketfest 2023: The little Racket conference that could!](https://racket.discourse.group/t/racketfest-2023-the-little-racket-conference-that-could/1516)
**Author:** [@jesse](https://racket.discourse.group/u/jesse)\ **Replies:** 0\ **Last updated:** [November 28, 2022, 1:04pm UTC](https://racket.discourse.group/t/racketfest-2023-the-little-racket-conference-that-could/1516 "2022-11-28T13:04:35Z")
Racketfest, the rogue Racket conference, is on! Mark your calendars: Saturday, March 18, 2023 in Berlin, Germany. All the information you need is on the Racketfest homepage. That page contains all information, and will … --- ## [How to evaluate a single expression?](https://racket.discourse.group/t/how-to-evaluate-a-single-expression/1511)
**Author:** [@ceving](https://racket.discourse.group/u/ceving)\ **Replies:** 5\ **Last updated:** [November 28, 2022, 7:19am UTC](https://racket.discourse.group/t/how-to-evaluate-a-single-expression/1511 "2022-11-28T07:19:06Z")
I am looking for the equivalent of C-x C-e in Emacs' Scheme mode. In Emacs the function eval-last-sexp gets evaluated. If you put the cursor on a closing parenthesis, the code up to the corresponding opening parenthesis … --- ## [Twelfth RacketCon video playlist](https://racket.discourse.group/t/twelfth-racketcon-video-playlist/1481)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 1\ **Last updated:** [November 17, 2022, 1:20pm UTC](https://racket.discourse.group/t/twelfth-racketcon-video-playlist/1481 "2022-11-17T13:20:12Z")
The RacketCon recording have been cut up into individual talks and uploaded to the Racket YouTube channel. The can be found in the Twelfth RacketCon Playlist All playlists: https://www.youtube.com/c/racketlang/playlist… --- ## [Identifier already required?](https://racket.discourse.group/t/identifier-already-required/1480)
**Author:** [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\ **Replies:** 4\ **Last updated:** [November 17, 2022, 11:22am UTC](https://racket.discourse.group/t/identifier-already-required/1480 "2022-11-17T11:22:06Z")
hello, i have this strange message when trying to redefine a 'if like in the file below. Welcome to DrRacket, version 8.6 \[cs\]. Language: reader "racket/SRFI-105.rkt", with debugging; memory limit: 14000 MB. . racket… --- ## [I need help with my homework](https://racket.discourse.group/t/i-need-help-with-my-homework/1484)
**Author:** [@federico3](https://racket.discourse.group/u/federico3)\ **Replies:** 3\ **Last updated:** [November 17, 2022, 9:12am UTC](https://racket.discourse.group/t/i-need-help-with-my-homework/1484 "2022-11-17T09:12:00Z")
A Pythagorean triplet is a set of three natural numbers, a \< b \< c, for which: a^2 + b^2 = c^2. For example: 3^2+4^2=9+16=25=5^2. There exists exactly one Pythagorean triplet for which a + b + c = 1000. Find the produc… --- ## [I have a problem with my homework](https://racket.discourse.group/t/i-have-a-problem-with-my-homework/1483)
**Author:** [@federico3](https://racket.discourse.group/u/federico3)\ **Replies:** 1\ **Last updated:** [November 17, 2022, 6:47am UTC](https://racket.discourse.group/t/i-have-a-problem-with-my-homework/1483 "2022-11-17T06:47:24Z")
I need a function that receives two arrays of numeric values: one of dimensions m × n and one of dimensions n × p and calculates the multiplication of both arrays. For example: --- ## [Syntactic test suite coverage in Dr Racket](https://racket.discourse.group/t/syntactic-test-suite-coverage-in-dr-racket/1421)
**Author:** [@tehkonst](https://racket.discourse.group/u/tehkonst)\ **Replies:** 7\ **Last updated:** [November 10, 2022, 2:06am UTC](https://racket.discourse.group/t/syntactic-test-suite-coverage-in-dr-racket/1421 "2022-11-10T02:06:20Z")
Hi. I am trying to use drracket's syntactic test suite coverage. It always marks expressions in functions with optional arguments (see the screenshot). Can I make drracket test coverage to ignore these lines? --- ## [Thank you for a lovely RacketCon](https://racket.discourse.group/t/thank-you-for-a-lovely-racketcon/1426)
**Author:** [@dstorrs](https://racket.discourse.group/u/dstorrs)\ **Replies:** 1\ **Last updated:** [November 8, 2022, 10:03pm UTC](https://racket.discourse.group/t/thank-you-for-a-lovely-racketcon/1426 "2022-11-08T22:03:53Z")
It was great to see everyone. Thank you for putting together another great event. --- ## [Call for Contributions: BOB 2023 \[March 17, Deadline Nov 21\]](https://racket.discourse.group/t/call-for-contributions-bob-2023-march-17-deadline-nov-21/1363)
**Author:** [@mike](https://racket.discourse.group/u/mike)\ **Replies:** 1\ **Last updated:** [November 8, 2022, 6:59pm UTC](https://racket.discourse.group/t/call-for-contributions-bob-2023-march-17-deadline-nov-21/1363 "2022-11-08T18:59:22Z")
As always, Racket material is very welcome at BOB! ================================================================================ BOB Conference 2023 "What happens when we use what's best for a change?" … --- ## [Racket meet-up 5 November at 18:00 UTC :racket:](https://racket.discourse.group/t/racket-meet-up-5-november-at-18-00-utc/1425)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 2\ **Last updated:** [November 5, 2022, 10:27pm UTC](https://racket.discourse.group/t/racket-meet-up-5-november-at-18-00-utc/1425 "2022-11-05T22:27:40Z")
Racket meet-up 5 November at 18:00 UTC :racket: At this meet-up: Show and tell News & rumours AOB Meet-up time at your location: 2022-11-05T18:00:00Z (UTC) (Discourse should convert this for you) In the 'Racket Room'… --- ## [Who has upload rights for the Racket YouTube account?](https://racket.discourse.group/t/who-has-upload-rights-for-the-racket-youtube-account/1437)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 10\ **Last updated:** [November 4, 2022, 10:51pm UTC](https://racket.discourse.group/t/who-has-upload-rights-for-the-racket-youtube-account/1437 "2022-11-04T22:51:53Z")
Who has upload rights for the Racket YouTube account? I’ve started working on cutting the videos and I realised I don’t know who to send the completed videos too? Best regards Stephen --- ## [Functional Art, Music, Modeling and Design (FARM 2022) Sep 15: Call for Participation](https://racket.discourse.group/t/functional-art-music-modeling-and-design-farm-2022-sep-15-call-for-participation/1249)
**Author:** [@mike](https://racket.discourse.group/u/mike)\ **Replies:** 0\ **Last updated:** [August 23, 2022, 11:41am UTC](https://racket.discourse.group/t/functional-art-music-modeling-and-design-farm-2022-sep-15-call-for-participation/1249 "2022-08-23T11:41:13Z")
=============================================================================== 10th ACM SIGPLAN International Workshop on Functional Art, Music, Modelling and Design (FARM) Ljubljana, Slovenia, 15th Sept… --- ## [\[TFP 2023 Call for Papers\] 24th International Symposium on Trends in Functional Programming](https://racket.discourse.group/t/tfp-2023-call-for-papers-24th-international-symposium-on-trends-in-functional-programming/1314)
**Author:** [@peter88](https://racket.discourse.group/u/peter88)\ **Replies:** 0\ **Last updated:** [September 19, 2022, 6:53pm UTC](https://racket.discourse.group/t/tfp-2023-call-for-papers-24th-international-symposium-on-trends-in-functional-programming/1314 "2022-09-19T18:53:16Z")
TFP 2023 -- Call for Papers (trendsfp.github.io) Important Dates Submission deadline: pre-symposium, full papers, Wednesday 23rd November, 2022 Submission deadline: pre-symposium, draft papers, Friday 16th December, 2… --- ## [PLDI 2023, Call for Workshops and Tutorials](https://racket.discourse.group/t/pldi-2023-call-for-workshops-and-tutorials/1374)
**Author:** [@wilbowma](https://racket.discourse.group/u/wilbowma)\ **Replies:** 0\ **Last updated:** [October 12, 2022, 5:44pm UTC](https://racket.discourse.group/t/pldi-2023-call-for-workshops-and-tutorials/1374 "2022-10-12T17:44:57Z")
Call for Workshops and Tutorials PLDI 2023 is a world-class forum for researchers and practitioners in programming language design and implementation. As in previous years, PLDI is soliciting proposals for co-located wor… --- ## [Let's Write a Qi Compiler - Weekly on Friday](https://racket.discourse.group/t/lets-write-a-qi-compiler-weekly-on-friday/1248)
**Author:** [@countvajhula](https://racket.discourse.group/u/countvajhula)\ **Replies:** 6\ **Last updated:** [November 2, 2022, 6:50pm UTC](https://racket.discourse.group/t/lets-write-a-qi-compiler-weekly-on-friday/1248 "2022-11-02T18:50:53Z")
The Qi compiler project is just getting off the ground, and we are starting to meet regularly to discuss ideas, pair-program, and share updates. If you're interested in compilers and DSLs -- whether you are an expert or … --- ## [Macro syntax incompatibility](https://racket.discourse.group/t/macro-syntax-incompatibility/1433)
**Author:** [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\ **Replies:** 2\ **Last updated:** [November 2, 2022, 12:03pm UTC](https://racket.discourse.group/t/macro-syntax-incompatibility/1433 "2022-11-02T12:03:07Z")
hello, i have a macro that works in Guile scheme and is accepted by Racket but the execution is bad: here is the macro: (define-syntax for (lambda (stx) (syntax-case stx () ((kwd (init test incrmt) body ..… --- ## [Swindle (CLOS for Racket)](https://racket.discourse.group/t/swindle-clos-for-racket/1419)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 0\ **Last updated:** [October 29, 2022, 11:23am UTC](https://racket.discourse.group/t/swindle-clos-for-racket/1419 "2022-10-29T11:23:54Z")
Yesterday at the ‘Racket Hackathon/Open Space’, participants worked to add examples to the documentation (thank you all😁). Swindle has been around for a long time and I have often pointed new users who have asked about … [Previous page](https://racket.discourse.group/c/general/12.md?page=16) [Next page](https://racket.discourse.group/c/general/12.md?page=18)