# Latest

**URL:** https://discourse.julialang.org/latest.md?page=123

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

**Page:** 124

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## [How to include javascript code in HTML blocks with Franklin.jl?](https://discourse.julialang.org/t/how-to-include-javascript-code-in-html-blocks-with-franklin-jl/131316)

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**Author:** [@fmor](https://discourse.julialang.org/u/fmor)\
**Replies:** 2\
**Last updated:** [August 12, 2025, 8:30am UTC](https://discourse.julialang.org/t/how-to-include-javascript-code-in-html-blocks-with-franklin-jl/131316 "2025-08-12T08:30:54Z")

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Hello, I’m using Franklin to build web pages and sometimes I have to insert some HTML/javascript sections in the page. WIth pure HTML content there are no problems: I just enclose everything around the ~~~. However, when…

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## [From Rust to Julia](https://discourse.julialang.org/t/from-rust-to-julia/130939)

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**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 13\
**Last updated:** [August 12, 2025, 7:40am UTC](https://discourse.julialang.org/t/from-rust-to-julia/130939 "2025-08-12T07:40:17Z")

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I would like to create a Julia version of the following library: GitHub - jaimeliew1/Mann.rs: A Mann turbulence generator for Python written in Rust Questions: how can I wrap Rust code in Julia? is it difficult to tra…

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## [PI Controller oscillating between limit values](https://discourse.julialang.org/t/pi-controller-oscillating-between-limit-values/131510)

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**Author:** [@madtorresga](https://discourse.julialang.org/u/madtorresga)\
**Replies:** 4\
**Last updated:** [August 12, 2025, 5:01am UTC](https://discourse.julialang.org/t/pi-controller-oscillating-between-limit-values/131510 "2025-08-12T05:01:23Z")

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Hello, I’m trying to implement a PI controller that turns on once the cell goes out of the voltage limits. My model looks something like this: @mtkmodel Cell begin ... @components begin ... deadzone = DeadZ…

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## [Recording data from model\_step in Agents.jl](https://discourse.julialang.org/t/recording-data-from-model-step-in-agents-jl/131543)

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**Author:** [@geoffD](https://discourse.julialang.org/u/geoffD)\
**Replies:** 0\
**Last updated:** [August 12, 2025, 3:05am UTC](https://discourse.julialang.org/t/recording-data-from-model-step-in-agents-jl/131543 "2025-08-12T03:05:25Z")

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Hi, I am trying to increment a few pieces of data on every model step in Agents.jl. Data are structured as Dict entries. The code appears to be incrementing appropriately when I examine the values from within model\_step!…

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## [Viewing profiling info with signal-triggered profile](https://discourse.julialang.org/t/viewing-profiling-info-with-signal-triggered-profile/131541)

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**Author:** [@Ken\_Williams](https://discourse.julialang.org/u/Ken_Williams)\
**Replies:** 0\
**Last updated:** [August 11, 2025, 10:39pm UTC](https://discourse.julialang.org/t/viewing-profiling-info-with-signal-triggered-profile/131541 "2025-08-11T22:39:41Z")

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When capturing profiling data as described in Profiling - Triggered During Execution, is there a way to view the results in VS Code’s normal flame graph view? I haven’t found any good way to comb through the results, I …

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## [Lux flexible architecture initialization plus setting parameters to Float64](https://discourse.julialang.org/t/lux-flexible-architecture-initialization-plus-setting-parameters-to-float64/131530)

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**Author:** [@dameka](https://discourse.julialang.org/u/dameka)\
**Replies:** 2\
**Last updated:** [August 11, 2025, 7:03pm UTC](https://discourse.julialang.org/t/lux-flexible-architecture-initialization-plus-setting-parameters-to-float64/131530 "2025-08-11T19:03:33Z")

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I’m switching to Lux for my ML problems, and I need advice on a couple basic things. How can I initialize my network in a flexible way so that the number of layers and nodes is an argument? How can I force the network …

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## [An IDE interface for Windows 7](https://discourse.julialang.org/t/an-ide-interface-for-windows-7/131317)

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**Author:** [@hack3rcon](https://discourse.julialang.org/u/hack3rcon)\
**Replies:** 23\
**Last updated:** [August 11, 2025, 6:43pm UTC](https://discourse.julialang.org/t/an-ide-interface-for-windows-7/131317 "2025-08-11T18:43:34Z")

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Hello, I managed to install Julia on Windows 7, but I’m having trouble setting up VSCodium 1.70.2: Trying to locate Julia binary... Juliaup not found, locating Julia by other means. No Julia executable was identified. …

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## [Mkpath behaves differently on Julia 1.12-rc1](https://discourse.julialang.org/t/mkpath-behaves-differently-on-julia-1-12-rc1/131527)

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**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 4\
**Last updated:** [August 11, 2025, 10:35am UTC](https://discourse.julialang.org/t/mkpath-behaves-differently-on-julia-1-12-rc1/131527 "2025-08-11T10:35:19Z")

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Julia 1.11: cd(mktempdir()) mkpath("uwe/") Output: "uwe" Julia 1.12-rc1: cd(mktempdir()) mkpath("uwe/") Output: "uwe/" This difference causes my unit tests to fail. Is this a bug, or just undefined behaviour? Thi…

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## [FunSQL "in" statement?](https://discourse.julialang.org/t/funsql-in-statement/122822)

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**Author:** [@Satvik](https://discourse.julialang.org/u/Satvik)\
**Replies:** 6\
**Last updated:** [August 11, 2025, 4:49am UTC](https://discourse.julialang.org/t/funsql-in-statement/122822 "2025-08-11T04:49:11Z")

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In FunSQL, is there a way to use in statements with user-provided lists? E.g. I want to recreate the query select \* from my\_table where id in (1, 2). I’ve tried several approaches, such as q = From(:my\_table) |\> Where(Fu…

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## [Python 3.14 LLVM tail-call interpreter](https://discourse.julialang.org/t/python-3-14-llvm-tail-call-interpreter/126777)

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**Author:** [@fdekerme](https://discourse.julialang.org/u/fdekerme)\
**Replies:** 3\
**Last updated:** [August 11, 2025, 4:39am UTC](https://discourse.julialang.org/t/python-3-14-llvm-tail-call-interpreter/126777 "2025-08-11T04:39:38Z")

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Not an expert at all, but I think this blog post from Nelson Elhage about Python 3.14 LLVM performances could interest people here: fdekerm

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## [Asynchronous tasks vs multi-threading](https://discourse.julialang.org/t/asynchronous-tasks-vs-multi-threading/131485)

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**Author:** [@WalterMadelim](https://discourse.julialang.org/u/WalterMadelim)\
**Replies:** 16\
**Last updated:** [August 10, 2025, 10:48pm UTC](https://discourse.julialang.org/t/asynchronous-tasks-vs-multi-threading/131485 "2025-08-10T22:48:01Z")

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Parallel is a section of Julia’s doc containing the following 2 subsections Asynchronous “tasks”, or coroutines Multi-threading I notice that setting JULIA\_NUM\_THREADS to \>1 (proper physical multi-threading) is only r…

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## [A problem of PkgTemplate of \`Base.retry\_load\_extensions()\`](https://discourse.julialang.org/t/a-problem-of-pkgtemplate-of-base-retry-load-extensions/131513)

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**Author:** [@Cyan](https://discourse.julialang.org/u/Cyan)\
**Replies:** 1\
**Last updated:** [August 10, 2025, 4:54pm UTC](https://discourse.julialang.org/t/a-problem-of-pkgtemplate-of-base-retry-load-extensions/131513 "2025-08-10T16:54:11Z")

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Hi, all. I use PkgTemplate to create a local package. When I using my package, the error shows up: Error: Error during loading of extension FillArraysStatisticsExt of FillArrays, use \`Base.retry\_load\_extensions()\` to re…

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## [Is this an AI hallucination or my misunderstanding of Julia syntax?](https://discourse.julialang.org/t/is-this-an-ai-hallucination-or-my-misunderstanding-of-julia-syntax/131363)

<div class="topic-metadata">

**Author:** [@pvc](https://discourse.julialang.org/u/pvc)\
**Replies:** 6\
**Last updated:** [August 10, 2025, 10:08pm UTC](https://discourse.julialang.org/t/is-this-an-ai-hallucination-or-my-misunderstanding-of-julia-syntax/131363 "2025-08-10T22:08:33Z")

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Just starting with Julia/VSCode - new to both so not quite sure where best to post this question. I have an “invalid identifier” error in my first program which is diagnosed by GitHub CoPilot as below. I suspect this i…

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## [Testing is single threaded?](https://discourse.julialang.org/t/testing-is-single-threaded/131483)

<div class="topic-metadata">

**Author:** [@freeman](https://discourse.julialang.org/u/freeman)\
**Replies:** 2\
**Last updated:** [August 10, 2025, 2:25pm UTC](https://discourse.julialang.org/t/testing-is-single-threaded/131483 "2025-08-10T14:25:42Z")

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Is testing single threaded? I just tried \]test DataFrames.jl and it’s been going for what feels like 20 minutes, but as far as I can tell it uses 1 single core? Surely testing is trivially multi-threaded?

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## [BinaryBuilder on Yggdrasil: cmake build fails on Windows; meson build fails on MacOs](https://discourse.julialang.org/t/binarybuilder-on-yggdrasil-cmake-build-fails-on-windows-meson-build-fails-on-macos/131502)

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**Author:** [@HugoMVale](https://discourse.julialang.org/u/HugoMVale)\
**Replies:** 2\
**Last updated:** [August 10, 2025, 10:56am UTC](https://discourse.julialang.org/t/binarybuilder-on-yggdrasil-cmake-build-fails-on-windows-meson-build-fails-on-macos/131502 "2025-08-10T10:56:22Z")

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I am trying to build a binary pkg using BinaryBuilder and Yggdrasil. My PR can be found here. odrpack: new package for Odrpack.jl by HugoMVale · Pull Request #11806 · JuliaPackaging/Yggdrasil When I build the library …

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## [NonlinearSolve: how to pass parameters including a mutable workspace array](https://discourse.julialang.org/t/nonlinearsolve-how-to-pass-parameters-including-a-mutable-workspace-array/131421)

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**Author:** [@Audrius-St](https://discourse.julialang.org/u/Audrius-St)\
**Replies:** 5\
**Last updated:** [August 10, 2025, 8:00am UTC](https://discourse.julialang.org/t/nonlinearsolve-how-to-pass-parameters-including-a-mutable-workspace-array/131421 "2025-08-10T08:00:06Z")

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I would like to solve a 1D equation using NonlinearSolve. Appended below is a toy MNWE followed by the error message generated. The issue I’m encountering is that in the actual problem I need to pass a workspace array w…

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## [Seeking advice on asynchronous programming problem](https://discourse.julialang.org/t/seeking-advice-on-asynchronous-programming-problem/131464)

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**Author:** [@benninkrs](https://discourse.julialang.org/u/benninkrs)\
**Replies:** 4\
**Last updated:** [August 10, 2025, 5:38am UTC](https://discourse.julialang.org/t/seeking-advice-on-asynchronous-programming-problem/131464 "2025-08-10T05:38:00Z")

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I’m new to asynchronous programming and have a use case that I’m not sure how to express in terms of Julia concepts. I’d greatly appreciate any suggestions others may have to offer. I have a task A, that consists of con…

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## [Solving linear system without allocating](https://discourse.julialang.org/t/solving-linear-system-without-allocating/130300)

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**Author:** [@freeman](https://discourse.julialang.org/u/freeman)\
**Replies:** 19\
**Last updated:** [August 9, 2025, 11:34pm UTC](https://discourse.julialang.org/t/solving-linear-system-without-allocating/130300 "2025-08-09T23:34:14Z")

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First off, this isn’t advanced stuff, conceptually it should be straightforward. I’m almost sure this is just me missing something basic. So I’m implementing an algorithm which is just a sequence of matrix multiplicatio…

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## [\[ANN\] ReAnimation.jl: Animation system in julia](https://discourse.julialang.org/t/ann-reanimation-jl-animation-system-in-julia/131479)

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**Author:** [@Gesee](https://discourse.julialang.org/u/Gesee)\
**Replies:** 4\
**Last updated:** [August 9, 2025, 7:54pm UTC](https://discourse.julialang.org/t/ann-reanimation-jl-animation-system-in-julia/131479 "2025-08-09T19:54:03Z")

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Hello guys I’m happy to present ReAnimation.jl, a full animation system in julia. I made it as a module for my game engine but it can be used alone for anything else. The package is being registered but you can just cl…

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## [Reactant + Lux LLama on TPUs](https://discourse.julialang.org/t/reactant-lux-llama-on-tpus/131492)

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**Author:** [@yolhan\_mannes](https://discourse.julialang.org/u/yolhan_mannes)\
**Replies:** 0\
**Last updated:** [August 9, 2025, 3:03pm UTC](https://discourse.julialang.org/t/reactant-lux-llama-on-tpus/131492 "2025-08-09T15:03:53Z")

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Just wanted to share how to use Reactant+Lux on TPUs for a LLama like transformer model, it seems really nice to write even though its hard to adapt to the compact way of writting it does feel a lot better after. Still c…

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## [Segmentation Fault working with complex sparse arrays](https://discourse.julialang.org/t/segmentation-fault-working-with-complex-sparse-arrays/131493)

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**Author:** [@RayleighLord](https://discourse.julialang.org/u/RayleighLord)\
**Replies:** 2\
**Last updated:** [August 9, 2025, 4:51pm UTC](https://discourse.julialang.org/t/segmentation-fault-working-with-complex-sparse-arrays/131493 "2025-08-09T16:51:47Z")

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I am running a code that basically has to do a Craig-Bampton transformation (compute a subset of eigenvalues and eigenvectors) repeteadly for several complex matrices. The matrices that go inside the reduction are obtain…

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## [Sysimage + vscode](https://discourse.julialang.org/t/sysimage-vscode/131487)

<div class="topic-metadata">

**Author:** [@freeman](https://discourse.julialang.org/u/freeman)\
**Replies:** 0\
**Last updated:** [August 9, 2025, 11:49am UTC](https://discourse.julialang.org/t/sysimage-vscode/131487 "2025-08-09T11:49:12Z")

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Are there any known problems specific to running VS code with your own sysimage? I have a “research” environment that I use a lot. Running the includes takes a long time, and then compiling functions for the first time …

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## [Combining \`Optim\` and \`FieldVector\` from \`StaticArrays\`](https://discourse.julialang.org/t/combining-optim-and-fieldvector-from-staticarrays/131472)

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**Author:** [@NoFishLikeIan](https://discourse.julialang.org/u/NoFishLikeIan)\
**Replies:** 3\
**Last updated:** [August 9, 2025, 10:15am UTC](https://discourse.julialang.org/t/combining-optim-and-fieldvector-from-staticarrays/131472 "2025-08-09T10:15:56Z")

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I’m getting a MethodError in LBFGS when trying to use a custom mutable struct that inherits from FieldVector for an optimization problem. using StaticArrays using Optimization, OptimizationOptimJL mutable struct Point{…

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## [Javis: Error in the first tutorial ERROR: UndefVarError: \`Object\` not defined in \`Main\`](https://discourse.julialang.org/t/javis-error-in-the-first-tutorial-error-undefvarerror-object-not-defined-in-main/131467)

<div class="topic-metadata">

**Author:** [@tdm](https://discourse.julialang.org/u/tdm)\
**Replies:** 3\
**Last updated:** [August 8, 2025, 8:11pm UTC](https://discourse.julialang.org/t/javis-error-in-the-first-tutorial-error-undefvarerror-object-not-defined-in-main/131467 "2025-08-08T20:11:23Z")

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I am following the steps in the (very well written) Javis first tutorial: Tutorial 1: Making Your First Javis Animation! · Javis.jl There are errors right off the bat when I try simple things like: julia\> Background(1:…

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## [Help with optimising a simple function](https://discourse.julialang.org/t/help-with-optimising-a-simple-function/131459)

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**Author:** [@Tbl](https://discourse.julialang.org/u/Tbl)\
**Replies:** 21\
**Last updated:** [August 8, 2025, 6:56pm UTC](https://discourse.julialang.org/t/help-with-optimising-a-simple-function/131459 "2025-08-08T18:56:18Z")

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Recently my colleagues asked me to translate my code for estimation to Python. Making it run with any reasonable speed was truly a pain and advertisement for Julia, but at the end it became few times faster with numba. I…

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## [RigidBodySim.jl: Working setup on macOS (Julia 1.9+) with browser-based MeshCat visualization?](https://discourse.julialang.org/t/rigidbodysim-jl-working-setup-on-macos-julia-1-9-with-browser-based-meshcat-visualization/131452)

<div class="topic-metadata">

**Author:** [@drsiegmund](https://discourse.julialang.org/u/drsiegmund)\
**Replies:** 2\
**Last updated:** [August 8, 2025, 5:49pm UTC](https://discourse.julialang.org/t/rigidbodysim-jl-working-setup-on-macos-julia-1-9-with-browser-based-meshcat-visualization/131452 "2025-08-08T17:49:35Z")

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Hi everyone, I’m currently setting up \`RigidBodySim.jl\` and \`RigidBodyDynamics.jl\` on a modern macOS system (MacBook Air M2, macOS Sonoma) using Julia 1.9.4 and 1.10.2. My goal is to get a complete and stable simulatio…

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## [Access to Data folders in JuliaHub](https://discourse.julialang.org/t/access-to-data-folders-in-juliahub/131477)

<div class="topic-metadata">

**Author:** [@cirobr](https://discourse.julialang.org/u/cirobr)\
**Replies:** 1\
**Last updated:** [August 8, 2025, 5:33pm UTC](https://discourse.julialang.org/t/access-to-data-folders-in-juliahub/131477 "2025-08-08T17:33:46Z")

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Have just learned here on how to open an image file stored in JuliaHub/Data with the aid of DataSets package. Alternatively, I wonder if creating a shell symlink in the project’s folder which points out to Data’s datase…

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## [Hydra.cc config management alternative in Julia](https://discourse.julialang.org/t/hydra-cc-config-management-alternative-in-julia/131476)

<div class="topic-metadata">

**Author:** [@aadam](https://discourse.julialang.org/u/aadam)\
**Replies:** 1\
**Last updated:** [August 8, 2025, 5:03pm UTC](https://discourse.julialang.org/t/hydra-cc-config-management-alternative-in-julia/131476 "2025-08-08T17:03:32Z")

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Hi, I heavily use Hydra.cc package in Python for creating highly configurable codebases that I can easily modify using command line, python code, or yaml files. This makes it extremely configurable, and I can try out dif…

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## [\[ANN\] Dyad: A New Language to Make Hardware Engineering as Fast as Software](https://discourse.julialang.org/t/ann-dyad-a-new-language-to-make-hardware-engineering-as-fast-as-software/129996)

<div class="topic-metadata">

**Author:** [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)\
**Replies:** 76\
**Last updated:** [August 8, 2025, 4:05pm UTC](https://discourse.julialang.org/t/ann-dyad-a-new-language-to-make-hardware-engineering-as-fast-as-software/129996 "2025-08-08T16:05:32Z")

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JuliaHub is happy to announce Dyad, a new language to make hardware engineering as fast and easy as software engineering! Check out the release blog post! What is Dyad in a nutshell? It is a declarative physical model…

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## [Read an image in JuliaHub with DataSets](https://discourse.julialang.org/t/read-an-image-in-juliahub-with-datasets/131475)

<div class="topic-metadata">

**Author:** [@cirobr](https://discourse.julialang.org/u/cirobr)\
**Replies:** 1\
**Last updated:** [August 8, 2025, 2:31pm UTC](https://discourse.julialang.org/t/read-an-image-in-juliahub-with-datasets/131475 "2025-08-08T14:31:34Z")

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Cheers, I have a number of images in a folder, stored in the Data area in JuliaHub. Apparently, package DataSets is used to read an image in it. For instance: using DataSets using Images path = "ciro-rosa-583/figs" tre…

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