# Community

**URL:** https://discourse.julialang.org/c/community/22.md?page=7

[Latest](https://discourse.julialang.org/latest.md) · [Categories](https://discourse.julialang.org/categories.md) · [Tags](https://discourse.julialang.org/tags.md)

**Page:** 8

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## [Annual Julia User & Developer Survey - Draft Questionnaire Feedback (Do NOT Complete Survey at this Time)](https://discourse.julialang.org/t/annual-julia-user-developer-survey-draft-questionnaire-feedback-do-not-complete-survey-at-this-time/126780)

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**Author:** [@ahclaster](https://discourse.julialang.org/u/ahclaster)\
**Replies:** 2\
**Last updated:** [April 21, 2025, 9:52pm UTC](https://discourse.julialang.org/t/annual-julia-user-developer-survey-draft-questionnaire-feedback-do-not-complete-survey-at-this-time/126780 "2025-04-21T21:52:15Z")

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We are currently soliciting feedback from the Julia Community for the 7th annual Julia User & Developer Survey draft questionnaire. Please do NOT complete the survey at this time. The draft questionnaire is available he…

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## [\[CfP\] PAW-ATM 2025: Parallel Applications Workshop, Alternatives to MPI+X - Supercomputing 2025](https://discourse.julialang.org/t/cfp-paw-atm-2025-parallel-applications-workshop-alternatives-to-mpi-x-supercomputing-2025/128063)

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**Author:** [@sloede](https://discourse.julialang.org/u/sloede)\
**Replies:** 0\
**Last updated:** [April 14, 2025, 2:27pm UTC](https://discourse.julialang.org/t/cfp-paw-atm-2025-parallel-applications-workshop-alternatives-to-mpi-x-supercomputing-2025/128063 "2025-04-14T14:27:29Z")

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Call for Papers PAW-ATM 2025: Parallel Applications Workshop, Alternatives To MPI+X Held in conjunction with SC25, St. Louis, MO Submissions deadline: July 24, 2025 Notification to authors: August 30, 2025 Worksho…

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## [Congratulations to Dr. Alan Edelman - a 2024 Fellow of the American Association for the Advancement of Science (AAAS)](https://discourse.julialang.org/t/congratulations-to-dr-alan-edelman-a-2024-fellow-of-the-american-association-for-the-advancement-of-science-aaas/127988)

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**Author:** [@digital\_carver](https://discourse.julialang.org/u/digital_carver)\
**Replies:** 0\
**Last updated:** [April 11, 2025, 6:16pm UTC](https://discourse.julialang.org/t/congratulations-to-dr-alan-edelman-a-2024-fellow-of-the-american-association-for-the-advancement-of-science-aaas/127988 "2025-04-11T18:16:55Z")

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I just got around to the JuliaHub newletter for the last week, and learnt that: Alan Edelman, JuliaHub Co-Founder, Julia Co-Creator and Principal Investigator of the JuliaLab at the Massachusetts Institute of Technolog…

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## [Julia prize cryptic crossword](https://discourse.julialang.org/t/julia-prize-cryptic-crossword/126735)

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**Author:** [@jgreener64](https://discourse.julialang.org/u/jgreener64)\
**Replies:** 10\
**Last updated:** [April 10, 2025, 12:28am UTC](https://discourse.julialang.org/t/julia-prize-cryptic-crossword/126735 "2025-04-10T00:28:26Z")

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I’m sure there are some in this community who enjoy cryptic crosswords, so I made one with a Julia theme. Solve online: Julia cryptic crossword | Crosshare crossword puzzle PDF: https://crosshare.org/api/pdf/EmPzDZr42j…

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## [Multiline equations on Forem](https://discourse.julialang.org/t/multiline-equations-on-forem/127881)

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**Author:** [@Vasily\_Pisarev](https://discourse.julialang.org/u/Vasily_Pisarev)\
**Replies:** 0\
**Last updated:** [April 9, 2025, 9:23am UTC](https://discourse.julialang.org/t/multiline-equations-on-forem/127881 "2025-04-09T09:23:49Z")

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Are multiline equations on Forem broken or am I missing something? When I enter something like \[ %katex \] \\delta\_{ij} = \\begin{cases} 1, i = j \\\\ 0, i \\ne j \\end{cases} \[ %endkatex \] I expect this look: \\delta\_{ij…

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## [This month in Julia world - 2025-03](https://discourse.julialang.org/t/this-month-in-julia-world-2025-03/127821)

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**Author:** [@Krastanov](https://discourse.julialang.org/u/Krastanov)\
**Replies:** 1\
**Last updated:** [April 8, 2025, 12:24am UTC](https://discourse.julialang.org/t/this-month-in-julia-world-2025-03/127821 "2025-04-08T00:24:02Z")

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A monthly newsletter, mostly on julia internals, digestible for casual observers. A biased, incomplete, editorialized list of what I found interesting this month, with contributions from the community. Call for proposal…

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## [\[Suggestion request\] An advance book for data science with Julia?](https://discourse.julialang.org/t/suggestion-request-an-advance-book-for-data-science-with-julia/31387)

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**Author:** [@sylvaticus](https://discourse.julialang.org/u/sylvaticus)\
**Replies:** 14\
**Last updated:** [February 11, 2025, 11:12pm UTC](https://discourse.julialang.org/t/suggestion-request-an-advance-book-for-data-science-with-julia/31387 "2025-02-11T23:12:25Z")

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Does anyone has suggestions for a relatively advanced book on Julia focusing on data science, including statistics and numerical computations? I am thinking to books like An Introduction to Statistical Learning for R or P…

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## [\[ANN\] ACS.jl a package to download US Census American Community Survey files](https://discourse.julialang.org/t/ann-acs-jl-a-package-to-download-us-census-american-community-survey-files/127581)

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**Author:** [@technocrat](https://discourse.julialang.org/u/technocrat)\
**Replies:** 6\
**Last updated:** [April 3, 2025, 9:14pm UTC](https://discourse.julialang.org/t/ann-acs-jl-a-package-to-download-us-census-american-community-survey-files/127581 "2025-04-03T21:14:34Z")

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Based on Kyle Walker’s tidycensus package for the R programming language, this contains functions to get specified variables from the one-, three-, and five-year surveys. A free Census API key is required. Repo and docu…

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## [\[CfP\] EOOLT 2025: 10th International Workshop on Equation-Based Object-Oriented Modeling Languages and Tools](https://discourse.julialang.org/t/cfp-eoolt-2025-10th-international-workshop-on-equation-based-object-oriented-modeling-languages-and-tools/125134)

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**Author:** [@benoit\_caillaud](https://discourse.julialang.org/u/benoit_caillaud)\
**Replies:** 1\
**Last updated:** [April 1, 2025, 2:59pm UTC](https://discourse.julialang.org/t/cfp-eoolt-2025-10th-international-workshop-on-equation-based-object-oriented-modeling-languages-and-tools/125134 "2025-04-01T14:59:10Z")

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EOOLT 2025: 10th International Workshop on Equation-Based Object-Oriented Modeling Languages and Tools 1st call for papers Venue Hochschule Bielefeld, University of Applied Sciences Bielefeld, Germany June 13, 2025 …

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## [Poll: do you know the expression problem in programming languages](https://discourse.julialang.org/t/poll-do-you-know-the-expression-problem-in-programming-languages/127535)

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**Author:** [@mitiemannn](https://discourse.julialang.org/u/mitiemannn)\
**Replies:** 0\
**Last updated:** [March 31, 2025, 8:00am UTC](https://discourse.julialang.org/t/poll-do-you-know-the-expression-problem-in-programming-languages/127535 "2025-03-31T08:00:59Z")

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Hi, I’m working on a little something and I require some community feedback: poll Hopefully, the results will turn into a talk at JuliaCon 2026 or a blog post or something similar. Thanks for your participation!

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## [Contingency plan for JuliaCon](https://discourse.julialang.org/t/contingency-plan-for-juliacon/126207)

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**Author:** [@Zgabalj](https://discourse.julialang.org/u/Zgabalj)\
**Replies:** 27\
**Last updated:** [March 28, 2025, 8:31am UTC](https://discourse.julialang.org/t/contingency-plan-for-juliacon/126207 "2025-03-28T08:31:14Z")

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Based on the ongoing events, has there been any effort to move JuliaCon 2025 to another location (preferably another country)?

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## [How can I participate in JSOC 2025?](https://discourse.julialang.org/t/how-can-i-participate-in-jsoc-2025/127401)

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**Author:** [@Mend-Amar\_Badral](https://discourse.julialang.org/u/Mend-Amar_Badral)\
**Replies:** 0\
**Last updated:** [March 27, 2025, 4:37am UTC](https://discourse.julialang.org/t/how-can-i-participate-in-jsoc-2025/127401 "2025-03-27T04:37:57Z")

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Hi, I am thinking of participating in GSOC (or JSOC) 2025. How can I participate? I’m intermediate but not advanced user of Julia with some knowledge of image processing, geospatial.

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## [New on Forem: “Generate Prime Pairs for Goldbach's Conjecture"](https://discourse.julialang.org/t/new-on-forem-generate-prime-pairs-for-goldbachs-conjecture/125705)

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**Author:** [@oheil](https://discourse.julialang.org/u/oheil)\
**Replies:** 3\
**Last updated:** [March 18, 2025, 10:05pm UTC](https://discourse.julialang.org/t/new-on-forem-generate-prime-pairs-for-goldbachs-conjecture/125705 "2025-03-18T22:05:16Z")

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Jabari Zakiya has published a new article on Forem: I hope you enjoy reading it. This time there are specific performance questions asked comparing Ruby code against a Julia translation.

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## [Potential US West Coast Meetups (Portland, Bay Area, San Diego)](https://discourse.julialang.org/t/potential-us-west-coast-meetups-portland-bay-area-san-diego/126609)

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**Author:** [@Keno](https://discourse.julialang.org/u/Keno)\
**Replies:** 13\
**Last updated:** [March 18, 2025, 8:40pm UTC](https://discourse.julialang.org/t/potential-us-west-coast-meetups-portland-bay-area-san-diego/126609 "2025-03-18T20:40:49Z")

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I am doing a bit of a last-minute west coast tour with stops in Portland, SF Bay Area and San Diego. I’d like to gauge interest in organizing some informal meetups while I’m there. I don’t have much bandwidth to organize…

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## [Introductory course on geospatial data science and geostatistics](https://discourse.julialang.org/t/introductory-course-on-geospatial-data-science-and-geostatistics/127100)

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**Author:** [@juliohm](https://discourse.julialang.org/u/juliohm)\
**Replies:** 1\
**Last updated:** [March 18, 2025, 3:14pm UTC](https://discourse.julialang.org/t/introductory-course-on-geospatial-data-science-and-geostatistics/127100 "2025-03-18T15:14:21Z")

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Target audience → Beginners Language → Brazilian portuguese Host → ABGE (Brazilian association of geologists and engineers)

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## [Would it be a good idea to list academic papers using Julia on the Julia-lang website?](https://discourse.julialang.org/t/would-it-be-a-good-idea-to-list-academic-papers-using-julia-on-the-julia-lang-website/127005)

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**Author:** [@xiaoxi](https://discourse.julialang.org/u/xiaoxi)\
**Replies:** 6\
**Last updated:** [March 18, 2025, 10:19am UTC](https://discourse.julialang.org/t/would-it-be-a-good-idea-to-list-academic-papers-using-julia-on-the-julia-lang-website/127005 "2025-03-18T10:19:24Z")

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As more and more academic papers use Julia, I wonder if it would be a good idea to list them on the Julia-lang website, similar to the list of books that use Julia. It would bring a bit more recognition to authors within…

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## [GeoStats.jl short-course at X Geoquanti](https://discourse.julialang.org/t/geostats-jl-short-course-at-x-geoquanti/126947)

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**Author:** [@juliohm](https://discourse.julialang.org/u/juliohm)\
**Replies:** 0\
**Last updated:** [March 14, 2025, 11:40am UTC](https://discourse.julialang.org/t/geostats-jl-short-course-at-x-geoquanti/126947 "2025-03-14T11:40:11Z")

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If you are in Brazil, this is a great opportunity to learn geospatial data science with Julia. I am targeting a beginner audience with little Julia programming experience:

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## [\[Portland, OR - Fri March 14\] Pi Day Informal Julia Users gathering](https://discourse.julialang.org/t/portland-or-fri-march-14-pi-day-informal-julia-users-gathering/126899)

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**Author:** [@Keno](https://discourse.julialang.org/u/Keno)\
**Replies:** 0\
**Last updated:** [March 13, 2025, 8:03am UTC](https://discourse.julialang.org/t/portland-or-fri-march-14-pi-day-informal-julia-users-gathering/126899 "2025-03-13T08:03:38Z")

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@jakobjpeters and I will be hosting an informal gathering of Julia users in Portland, OR, this Friday, March 14th at 5pm at Veggie Grill Downtown. We’re expecting this to be relatively small, so we didn’t reserve anyth…

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## [This month in Julia world - 2025-02](https://discourse.julialang.org/t/this-month-in-julia-world-2025-02/126783)

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**Author:** [@Krastanov](https://discourse.julialang.org/u/Krastanov)\
**Replies:** 5\
**Last updated:** [March 11, 2025, 6:49pm UTC](https://discourse.julialang.org/t/this-month-in-julia-world-2025-02/126783 "2025-03-11T18:49:27Z")

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A monthly newsletter, mostly on julia internals, digestible for casual observers. A biased, incomplete, editorialized list of what I found interesting this month, with contributions from the community. Save the date fo…

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## [SXSW2025 Panel](https://discourse.julialang.org/t/sxsw2025-panel/118288)

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**Author:** [@marcobonici](https://discourse.julialang.org/u/marcobonici)\
**Replies:** 4\
**Last updated:** [March 10, 2025, 3:49pm UTC](https://discourse.julialang.org/t/sxsw2025-panel/118288 "2025-03-10T15:49:28Z")

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Together with some colleagues, we proposed a panel at SXSW2025! We are gonna talk about Dark Matter, Dark Energy, the ESA Euclid mission, AI, and how we connect these topics together in our research! In particular, I wil…

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## [What image formats do you use within Julia?](https://discourse.julialang.org/t/what-image-formats-do-you-use-within-julia/114333)

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**Author:** [@kimikage](https://discourse.julialang.org/u/kimikage)\
**Replies:** 18\
**Last updated:** [March 8, 2025, 11:00am UTC](https://discourse.julialang.org/t/what-image-formats-do-you-use-within-julia/114333 "2025-03-08T11:00:20Z")

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Hello all! I often use SVG images without using Cairo.jl or Luxor.jl. I am probably in the “minority”. For raster images, I tend to use PNG. So, what image formats do you use within Julia? While the question does not …

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## [Data Science with Julia](https://discourse.julialang.org/t/data-science-with-julia/19941)

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**Author:** [@Aeonglacial](https://discourse.julialang.org/u/Aeonglacial)\
**Replies:** 21\
**Last updated:** [March 6, 2025, 9:39am UTC](https://discourse.julialang.org/t/data-science-with-julia/19941 "2025-03-06T09:39:26Z")

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This just came in the mail today! Looking forward to diving head first into this! Shout out to the authors if they are on the forum

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## [Rust x Julia Eindhoven Local meetup](https://discourse.julialang.org/t/rust-x-julia-eindhoven-local-meetup/126588)

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**Author:** [@miguelraz](https://discourse.julialang.org/u/miguelraz)\
**Replies:** 0\
**Last updated:** [March 5, 2025, 4:41pm UTC](https://discourse.julialang.org/t/rust-x-julia-eindhoven-local-meetup/126588 "2025-03-05T16:41:26Z")

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Hey all, the first Rust x Julia Eindhoven Local Meetup has been announced We’re hoping to build some cool bridges steal some talented tooling devs and share great ideas across communities. cc @Jorge\_Vieyra and @CityJ…

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## [Boyd is a Julia fan!](https://discourse.julialang.org/t/boyd-is-a-julia-fan/126317)

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**Author:** [@langestefan](https://discourse.julialang.org/u/langestefan)\
**Replies:** 5\
**Last updated:** [March 3, 2025, 6:51am UTC](https://discourse.julialang.org/t/boyd-is-a-julia-fan/126317 "2025-03-03T06:51:07Z")

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Just saw this interesting talk by Stephen Boyd: It’s an older video but he says some very interesting stuff about Julia at 51:10 :slight\_smile: (entire talk is super interesting, highly recommend watching…

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## [PSA: detected non-constant types in an out-of-place ODE solve](https://discourse.julialang.org/t/psa-detected-non-constant-types-in-an-out-of-place-ode-solve/83077)

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**Author:** [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)\
**Replies:** 6\
**Last updated:** [March 2, 2025, 11:42pm UTC](https://discourse.julialang.org/t/psa-detected-non-constant-types-in-an-out-of-place-ode-solve/83077 "2025-03-02T23:42:00Z")

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If you suddenly started seeing an error message from an OrdinaryDiffEq.jl (DifferentialEquations.jl) solver like: Detected non-constant types in an out-of-place ODE solve, i.e. for \`du = f(u,p,t)\` we see \`typeof(du) !==…

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## [Julia User Group Trondheim: Monthly Meeting](https://discourse.julialang.org/t/julia-user-group-trondheim-monthly-meeting/119674)

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**Author:** [@kellertuer](https://discourse.julialang.org/u/kellertuer)\
**Replies:** 9\
**Last updated:** [February 25, 2025, 3:20pm UTC](https://discourse.julialang.org/t/julia-user-group-trondheim-monthly-meeting/119674 "2025-02-25T15:20:47Z")

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Yesterday we had the first User Group Meeting in Trondheim, thanks for everyone who participated – it was great! We discussed two points for next – and hopefully regular meetings To find a room at NTNU, so it is easi…

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## [This month in Julia world - 2024-12](https://discourse.julialang.org/t/this-month-in-julia-world-2024-12/124295)

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**Author:** [@Krastanov](https://discourse.julialang.org/u/Krastanov)\
**Replies:** 2\
**Last updated:** [February 24, 2025, 12:11pm UTC](https://discourse.julialang.org/t/this-month-in-julia-world-2024-12/124295 "2025-02-24T12:11:47Z")

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A monthly newsletter, mostly on julia internals, digestible for casual observers. A biased, incomplete, editorialized list of what I found interesting this month, with contributions from the community. “Internals” Fora …

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## [This month in Julia world - 2024-11](https://discourse.julialang.org/t/this-month-in-julia-world-2024-11/123830)

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**Author:** [@Krastanov](https://discourse.julialang.org/u/Krastanov)\
**Replies:** 6\
**Last updated:** [February 24, 2025, 12:01pm UTC](https://discourse.julialang.org/t/this-month-in-julia-world-2024-11/123830 "2025-02-24T12:01:24Z")

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A monthly newsletter, mostly on julia internals, digestible for casual observers. A biased, incomplete, editorialized list of what I found interesting this month, with contributions from the community. “Internals” Fora …

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## [Blog post: Asynchronous programming in Julia](https://discourse.julialang.org/t/blog-post-asynchronous-programming-in-julia/125690)

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**Author:** [@jakobnissen](https://discourse.julialang.org/u/jakobnissen)\
**Replies:** 16\
**Last updated:** [February 24, 2025, 8:27am UTC](https://discourse.julialang.org/t/blog-post-asynchronous-programming-in-julia/125690 "2025-02-24T08:27:33Z")

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I’ve made a new blog post, this time an introduction to asyncronous programming in Julia. You can find it here: https://viralinstruction.com/posts/threads/ I’m interested in feedback, especially: Any misunderstandings…

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## [\[Ann\] Julia Quick Syntax Reference 2nd Edition (Springer)](https://discourse.julialang.org/t/ann-julia-quick-syntax-reference-2nd-edition-springer/125002)

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**Author:** [@sylvaticus](https://discourse.julialang.org/u/sylvaticus)\
**Replies:** 4\
**Last updated:** [February 21, 2025, 1:25pm UTC](https://discourse.julialang.org/t/ann-julia-quick-syntax-reference-2nd-edition-springer/125002 "2025-02-21T13:25:04Z")

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Dear all, I am pleased to announce the availability of the 2nd edition of my Apress book “Julia Quick Syntax Reference” \[Springer\]. \[Amazon\] Yes, it’s not that quick (361 pages, over 50% more than the 1st edition) and i…

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