# Latest

**URL:** https://discourse.julialang.org/latest.md?page=38

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

**Page:** 39

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## [3D engine for visualizing linear transformations and their decompositions](https://discourse.julialang.org/t/3d-engine-for-visualizing-linear-transformations-and-their-decompositions/136631)

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**Author:** [@GraphMath](https://discourse.julialang.org/u/GraphMath)\
**Replies:** 6\
**Last updated:** [April 10, 2026, 12:08pm UTC](https://discourse.julialang.org/t/3d-engine-for-visualizing-linear-transformations-and-their-decompositions/136631 "2026-04-10T12:08:42Z")

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We built a 3D visualization engine to represent linear transformations in ℝ³ as compositions of simpler transformations. In this example, A = QR Image shows deformation followed by rigid motion. Can generate additi…

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## [Arpeggeo + Algora: funding contributors of the GeoStats.jl framework](https://discourse.julialang.org/t/arpeggeo-algora-funding-contributors-of-the-geostats-jl-framework/119226)

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**Author:** [@juliohm](https://discourse.julialang.org/u/juliohm)\
**Replies:** 8\
**Last updated:** [April 10, 2026, 10:40am UTC](https://discourse.julialang.org/t/arpeggeo-algora-funding-contributors-of-the-geostats-jl-framework/119226 "2026-04-10T10:40:39Z")

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At Arpeggeo® we are starting an experimental initiative to attract more contributors to the Julia community. In partnership with algora.io, we are introducing open-source bounties to the GeoStats.jl framework. If you ar…

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## [Does a very large number of observed variables (3207 vs 1188 equations) significantly increase ODEProblem memory?](https://discourse.julialang.org/t/does-a-very-large-number-of-observed-variables-3207-vs-1188-equations-significantly-increase-odeproblem-memory/136618)

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**Author:** [@chen\_hardworking](https://discourse.julialang.org/u/chen_hardworking)\
**Replies:** 2\
**Last updated:** [April 10, 2026, 7:57am UTC](https://discourse.julialang.org/t/does-a-very-large-number-of-observed-variables-3207-vs-1188-equations-significantly-increase-odeproblem-memory/136618 "2026-04-10T07:57:18Z")

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Hi SciML team and community, I’m developing PowerEMT.jl, an open-source Julia package for Electromagnetic Transient (EMT) simulation of large power systems using ModelingToolkit.jl, specifically for IBR-dominated power …

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## [Two Senior Engineer Positions at Panthalassa](https://discourse.julialang.org/t/two-senior-engineer-positions-at-panthalassa/136661)

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**Author:** [@jakobjpeters](https://discourse.julialang.org/u/jakobjpeters)\
**Replies:** 2\
**Last updated:** [April 10, 2026, 5:35am UTC](https://discourse.julialang.org/t/two-senior-engineer-positions-at-panthalassa/136661 "2026-04-10T05:35:27Z")

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My team at Panthalassa has two open Julia positions! I truly love my teammates and work here, and recommend qualified candidates to apply :ocean: Senior Structural Engineer - Simulation Senior Fleet Simulation Engineer …

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## [\[RFC/ANN\] Parquet3.jl — alternative Parquet implementation focused on support for nested columns](https://discourse.julialang.org/t/rfc-ann-parquet3-jl-alternative-parquet-implementation-focused-on-support-for-nested-columns/136295)

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**Author:** [@Yuan-Ru-Lin](https://discourse.julialang.org/u/Yuan-Ru-Lin)\
**Replies:** 9\
**Last updated:** [April 10, 2026, 2:59am UTC](https://discourse.julialang.org/t/rfc-ann-parquet3-jl-alternative-parquet-implementation-focused-on-support-for-nested-columns/136295 "2026-04-10T02:59:17Z")

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I’d like to announce and request comments on Parquet3.jl. This implementation focuses specifically on support for nested column types, which are explicitly out of scope for Parquet2.jl, but would be a suitable representa…

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## [\[ANN\] USDAQuickStats.jl 1.0.0](https://discourse.julialang.org/t/ann-usdaquickstats-jl-1-0-0/136662)

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**Author:** [@alejandromerchan](https://discourse.julialang.org/u/alejandromerchan)\
**Replies:** 0\
**Last updated:** [April 10, 2026, 2:58am UTC](https://discourse.julialang.org/t/ann-usdaquickstats-jl-1-0-0/136662 "2026-04-10T02:58:58Z")

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USDAQuickStats.jl 1.0.0 I’m happy to announce the release of USDAQuickStats.jl v1.0.0, the first stable version of the package. What the package does USDAQuickStats.jl wraps the USDA NASS Quick Stats API, giving Julia u…

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## [Recommended idiom for collecting narrowest type](https://discourse.julialang.org/t/recommended-idiom-for-collecting-narrowest-type/136604)

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**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 16\
**Last updated:** [April 10, 2026, 1:59am UTC](https://discourse.julialang.org/t/recommended-idiom-for-collecting-narrowest-type/136604 "2026-04-10T01:59:47Z")

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Suppose I have a Vector with an abstract element type. What is the recommended idiom for collecting the elements into a vector with the narrowest possible element type? MWE: struct Foo{T} x::T end X = Foo\[Foo(1), Fo…

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## [Packages for mass spectrometry?](https://discourse.julialang.org/t/packages-for-mass-spectrometry/43481)

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**Author:** [@Eugeleo](https://discourse.julialang.org/u/Eugeleo)\
**Replies:** 14\
**Last updated:** [April 9, 2026, 8:55pm UTC](https://discourse.julialang.org/t/packages-for-mass-spectrometry/43481 "2026-04-09T20:55:45Z")

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My bachelor thesis concerns working mass spectrometry data; I’ll need to be able to load the spectra, visualise them, and most importantly, given a spectrum and a peptide fragment I’ll need to decide how likely it is tha…

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## [VR Support](https://discourse.julialang.org/t/vr-support/136656)

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**Author:** [@obsidianjulua](https://discourse.julialang.org/u/obsidianjulua)\
**Replies:** 0\
**Last updated:** [April 9, 2026, 5:48pm UTC](https://discourse.julialang.org/t/vr-support/136656 "2026-04-09T17:48:00Z")

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Anyone aware of any julia VR support. Even unregistered. Wanted to work on a julia VR solar training for meta quest and im wondering if I have to start fresh.

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## [Claude Code Language Server Plugin](https://discourse.julialang.org/t/claude-code-language-server-plugin/136128)

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**Author:** [@Alec\_Loudenback](https://discourse.julialang.org/u/Alec_Loudenback)\
**Replies:** 1\
**Last updated:** [April 9, 2026, 5:32pm UTC](https://discourse.julialang.org/t/claude-code-language-server-plugin/136128 "2026-04-09T17:32:26Z")

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I created a Julia LSP Claude plugin if anyone wants to try it out. I submitted it to Anthropic to be included in their curated set of plugins. GitHub - alecloudenback/ClaudeCodeJuliaLSP: Julia language server plugin for …

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## [AtlanticCloud.jl — typed Julia access to the Atlantic Cloud geospatial data infrastructure](https://discourse.julialang.org/t/atlanticcloud-jl-typed-julia-access-to-the-atlantic-cloud-geospatial-data-infrastructure/136655)

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**Author:** [@joao-pinelo](https://discourse.julialang.org/u/joao-pinelo)\
**Replies:** 0\
**Last updated:** [April 9, 2026, 4:29pm UTC](https://discourse.julialang.org/t/atlanticcloud-jl-typed-julia-access-to-the-atlantic-cloud-geospatial-data-infrastructure/136655 "2026-04-09T16:29:08Z")

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AtlanticCloud.jl — typed Julia access to the Atlantic Cloud geospatial data infrastructure We’ve just released AtlanticCloud.jl v0.3.0 — a client for the Atlantic Cloud, a transatlantic computation and data network opera…

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## [Makie menu and toggle color do not update when observable is changed](https://discourse.julialang.org/t/makie-menu-and-toggle-color-do-not-update-when-observable-is-changed/136626)

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**Author:** [@bjarthur](https://discourse.julialang.org/u/bjarthur)\
**Replies:** 1\
**Last updated:** [April 9, 2026, 3:01pm UTC](https://discourse.julialang.org/t/makie-menu-and-toggle-color-do-not-update-when-observable-is-changed/136626 "2026-04-09T15:01:20Z")

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in the MWE below, the slider and checkbox both change from red to blue, but the menu only does so if you then subsequently hover over it, and the toggle only if you toggle back and forth. i would’ve expected this to jus…

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## [InexactError in HomotopyContinuation.jl when solving a 5-body central configuration system](https://discourse.julialang.org/t/inexacterror-in-homotopycontinuation-jl-when-solving-a-5-body-central-configuration-system/136462)

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**Author:** [@xiaoming](https://discourse.julialang.org/u/xiaoming)\
**Replies:** 9\
**Last updated:** [April 9, 2026, 2:45pm UTC](https://discourse.julialang.org/t/inexacterror-in-homotopycontinuation-jl-when-solving-a-5-body-central-configuration-system/136462 "2026-04-09T14:45:36Z")

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I am trying to use HomotopyContinuation.jl to solve the central configuration problem. Below is a minimal working example of my code: using HomotopyContinuation, LinearAlgebra function gen\_equations(m) n = length(m)…

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## [\[ANN\] Meshes.jl - Computational Geometry in Julia](https://discourse.julialang.org/t/ann-meshes-jl-computational-geometry-in-julia/53973)

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**Author:** [@juliohm](https://discourse.julialang.org/u/juliohm)\
**Replies:** 58\
**Last updated:** [April 9, 2026, 2:30pm UTC](https://discourse.julialang.org/t/ann-meshes-jl-computational-geometry-in-julia/53973 "2026-04-09T14:30:46Z")

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Meshes.jl provides efficient implementations of concepts from computational geometry and finite element analysis. It promotes rigorous mathematical definitions of spatial discretizations (a.k.a. meshes) that are adequ…

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## [\[GSoC '26\] The Illusion of Uniformity: Non-Uniform Grids & Zero-Overhead Dispatch in MOL.jl](https://discourse.julialang.org/t/gsoc-26-the-illusion-of-uniformity-non-uniform-grids-zero-overhead-dispatch-in-mol-jl/136639)

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**Author:** [@Utku\_Yilmaz](https://discourse.julialang.org/u/Utku_Yilmaz)\
**Replies:** 0\
**Last updated:** [April 9, 2026, 10:00am UTC](https://discourse.julialang.org/t/gsoc-26-the-illusion-of-uniformity-non-uniform-grids-zero-overhead-dispatch-in-mol-jl/136639 "2026-04-09T10:00:18Z")

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Hi everyone, As part of my GSoC 2026 prep for MethodOfLines.jl, I just published a short devlog on bringing non-uniform grid support to high-order schemes like WENO. My post, “The Illusion of Uniformity,” outlines the a…

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## [How To Set-Up Julia on Android Termux?](https://discourse.julialang.org/t/how-to-set-up-julia-on-android-termux/97289)

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**Author:** [@TheCedarPrince](https://discourse.julialang.org/u/TheCedarPrince)\
**Replies:** 11\
**Last updated:** [April 9, 2026, 9:13am UTC](https://discourse.julialang.org/t/how-to-set-up-julia-on-android-termux/97289 "2026-04-09T09:13:25Z")

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Hi folks, I am running termux on an android tablet and really have no idea how to get Julia installed on it. Any suggestions on what to do? I googled and found some information about installing a Linux version onto term…

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## [\[ANN\] ConvolutionInterpolations.jl: Smooth multi-dimensional high order of accuracy interpolation](https://discourse.julialang.org/t/ann-convolutioninterpolations-jl-smooth-multi-dimensional-high-order-of-accuracy-interpolation/128003)

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**Author:** [@NikoBiele](https://discourse.julialang.org/u/NikoBiele)\
**Replies:** 80\
**Last updated:** [April 9, 2026, 2:36am UTC](https://discourse.julialang.org/t/ann-convolutioninterpolations-jl-smooth-multi-dimensional-high-order-of-accuracy-interpolation/128003 "2026-04-09T02:36:25Z")

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Hi Julia people :slightly\_smiling\_face: I made this registered package for interpolation: GitHub - NikoBiele/ConvolutionInterpolations.jl: A Julia package for smooth high-accuracy N-dimensional interpolation using separ…

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## [\[ANN\] LinearMPC.jl: Embedded Model Predictive Control of linear systems](https://discourse.julialang.org/t/ann-linearmpc-jl-embedded-model-predictive-control-of-linear-systems/128484)

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**Author:** [@darnstrom](https://discourse.julialang.org/u/darnstrom)\
**Replies:** 10\
**Last updated:** [April 8, 2026, 10:48pm UTC](https://discourse.julialang.org/t/ann-linearmpc-jl-embedded-model-predictive-control-of-linear-systems/128484 "2026-04-08T22:48:45Z")

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I am developing the package LinearMPC.jl, which is a package for Model Predictive Control (MPC) of linear dynamical systems. The focus of the package to produce high-performant and lightweight C-code that can easily be …

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## [Degree of Chebyshev polynomial off by one](https://discourse.julialang.org/t/degree-of-chebyshev-polynomial-off-by-one/136627)

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**Author:** [@CFBaptista](https://discourse.julialang.org/u/CFBaptista)\
**Replies:** 4\
**Last updated:** [April 8, 2026, 10:12pm UTC](https://discourse.julialang.org/t/degree-of-chebyshev-polynomial-off-by-one/136627 "2026-04-08T22:12:57Z")

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According to Wikipedia pages Chebyshev polynomials and Chebyshev nodes a Chebyshev polynomial of the first kind of degree n has n roots. However, in BarycentricInterpolation.jl I get: using BarycentricInterpolation no…

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## [Running a single test script](https://discourse.julialang.org/t/running-a-single-test-script/136623)

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**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 7\
**Last updated:** [April 8, 2026, 5:39pm UTC](https://discourse.julialang.org/t/running-a-single-test-script/136623 "2026-04-08T17:39:15Z")

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I want to be able to run a single test just by including it. For example, imagine the following test file: using Test, BenchmarkTools @test 1+1 == 2 If I include it directly, it fails: include("test/test\_example.jl" …

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## [GLMakie: Legend for figures with two y-axis](https://discourse.julialang.org/t/glmakie-legend-for-figures-with-two-y-axis/135328)

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**Author:** [@ellocco](https://discourse.julialang.org/u/ellocco)\
**Replies:** 8\
**Last updated:** [April 8, 2026, 2:42pm UTC](https://discourse.julialang.org/t/glmakie-legend-for-figures-with-two-y-axis/135328 "2026-04-08T14:42:35Z")

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Hi! I spent some time in the net but a failed to find a suitable solution. In the forum I found the helpful topic: https://discourse.julialang.org/t/solved-plotting-2-plots-on-same-figure-with-dual-axis/124623 But th…

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## [Cannot prevent repeated precompilation in docker runtime](https://discourse.julialang.org/t/cannot-prevent-repeated-precompilation-in-docker-runtime/136606)

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**Author:** [@dopamine](https://discourse.julialang.org/u/dopamine)\
**Replies:** 1\
**Last updated:** [April 8, 2026, 2:16pm UTC](https://discourse.julialang.org/t/cannot-prevent-repeated-precompilation-in-docker-runtime/136606 "2026-04-08T14:16:16Z")

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Hello, I’m deploying a julia script via docker, and can’t seem to prevent precompilation during runtime, which is very expensive, time-wise. So I observe that precompilation happens normally during the build time, but i…

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## [Isfile on Windows problem](https://discourse.julialang.org/t/isfile-on-windows-problem/136620)

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**Author:** [@JM\_Beckers](https://discourse.julialang.org/u/JM_Beckers)\
**Replies:** 6\
**Last updated:** [April 8, 2026, 1:39pm UTC](https://discourse.julialang.org/t/isfile-on-windows-problem/136620 "2026-04-08T13:39:13Z")

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I have a strange problem. I try to work with files in a directory I access using mypath=raw"C:\\users\\foo\\\\" and isfile(mypath\*"afile") works with almost all files in the directory but two of them are not reckognised…

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## [Funded PhD on nonlinear timeseries analysis of ground data](https://discourse.julialang.org/t/funded-phd-on-nonlinear-timeseries-analysis-of-ground-data/136619)

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**Author:** [@Datseris](https://discourse.julialang.org/u/Datseris)\
**Replies:** 0\
**Last updated:** [April 8, 2026, 11:58am UTC](https://discourse.julialang.org/t/funded-phd-on-nonlinear-timeseries-analysis-of-ground-data/136619 "2026-04-08T11:58:04Z")

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Hello, I’d like to advertise a funded PhD position on nonlinear timeseries analysis with Julia. Primarily critical transitions applied to ground data timeseries (soil, earthquakes). https://www.findaphd.com/phds/project…

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## [\[ANN\] MeijerG.jl - A Julia package for calculating Meijer-G functions](https://discourse.julialang.org/t/ann-meijerg-jl-a-julia-package-for-calculating-meijer-g-functions/136577)

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**Author:** [@TSGut](https://discourse.julialang.org/u/TSGut)\
**Replies:** 11\
**Last updated:** [April 8, 2026, 11:26am UTC](https://discourse.julialang.org/t/ann-meijerg-jl-a-julia-package-for-calculating-meijer-g-functions/136577 "2026-04-08T11:26:30Z")

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I’m happy to announce MeijerG.jl, a new Julia package providing numerical evaluation of the Meijer G‑function. The package aims to offer an easy-to-use interface for working with this very general special function. You …

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## [\[ANN\] OptimalControl.jl v2.0.0](https://discourse.julialang.org/t/ann-optimalcontrol-jl-v2-0-0/136599)

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**Author:** [@ocots](https://discourse.julialang.org/u/ocots)\
**Replies:** 7\
**Last updated:** [April 8, 2026, 8:48am UTC](https://discourse.julialang.org/t/ann-optimalcontrol-jl-v2-0-0/136599 "2026-04-08T08:48:32Z")

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It is a pleasure to announce the new major release of OptimalControl.jl (v2.0.0). Designed to solve optimal control problems on ODEs, the package features: a friendly DSL both direct (optimisation) and indirect (aka. s…

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## [\[ANN\] Montre.jl: bindings for a new corpus query engine for NLP](https://discourse.julialang.org/t/ann-montre-jl-bindings-for-a-new-corpus-query-engine-for-nlp/136611)

<div class="topic-metadata">

**Author:** [@myersm0](https://discourse.julialang.org/u/myersm0)\
**Replies:** 0\
**Last updated:** [April 8, 2026, 1:32am UTC](https://discourse.julialang.org/t/ann-montre-jl-bindings-for-a-new-corpus-query-engine-for-nlp/136611 "2026-04-08T01:32:35Z")

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Introducing Montre.jl montre (/mɔ̃tʁ/): from French montrer, “to show.” The Latin root is monstrare, “to point out, indicate.” ☜ Montre is a fast, embeddable corpus query engine that I wrote in the Rust language. This…

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## [\[ANN\] TicraUtilities.jl - Tools for working with Ticra-compatible files and data objects](https://discourse.julialang.org/t/ann-ticrautilities-jl-tools-for-working-with-ticra-compatible-files-and-data-objects/121113)

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**Author:** [@PeterSimon](https://discourse.julialang.org/u/PeterSimon)\
**Replies:** 5\
**Last updated:** [April 7, 2026, 9:26pm UTC](https://discourse.julialang.org/t/ann-ticrautilities-jl-tools-for-working-with-ticra-compatible-files-and-data-objects/121113 "2026-04-07T21:26:55Z")

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TicraUtilities is a package to facilitate working with Ticra-compatible files and data objects in the Julia language. TICRA is a Danish company specializing in antenna analysis and synthesis software. Their products for…

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## [Test data as Artifact](https://discourse.julialang.org/t/test-data-as-artifact/136239)

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**Author:** [@yakir12](https://discourse.julialang.org/u/yakir12)\
**Replies:** 11\
**Last updated:** [April 7, 2026, 7:02pm UTC](https://discourse.julialang.org/t/test-data-as-artifact/136239 "2026-04-07T19:02:46Z")

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My package’s tests require ~20 MB of data. Currently, this data is regenerated on every test run. I’d like to generate it once (e.g., per release) and fetch it at test time instead. The Julia Artifacts framework seems l…

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## [Design patterns around large type unions](https://discourse.julialang.org/t/design-patterns-around-large-type-unions/136607)

<div class="topic-metadata">

**Author:** [@Deduction42](https://discourse.julialang.org/u/Deduction42)\
**Replies:** 6\
**Last updated:** [April 7, 2026, 5:50pm UTC](https://discourse.julialang.org/t/design-patterns-around-large-type-unions/136607 "2026-04-07T17:50:37Z")

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I’m trying to build a chemical process modelling library that takes live sensor data as input, and one of the perennial challenges to this is the fact that there are many different types of flow meters with multiple inst…

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