# Latest

**URL:** https://discourse.julialang.org/latest.md?page=60

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

**Page:** 61

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## [Ziggurats.jl -- High performance non-uniform random number generators for user defined distributions](https://discourse.julialang.org/t/ziggurats-jl-high-performance-non-uniform-random-number-generators-for-user-defined-distributions/130352)

<div class="topic-metadata">

**Author:** [@npbarnes](https://discourse.julialang.org/u/npbarnes)\
**Replies:** 1\
**Last updated:** [January 28, 2026, 9:16pm UTC](https://discourse.julialang.org/t/ziggurats-jl-high-performance-non-uniform-random-number-generators-for-user-defined-distributions/130352 "2026-01-28T21:16:18Z")

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Announcing the recently registered Ziggurats.jl. Make very high performance random number generators for whatever distributions you like! (with some modest limitations) The ziggurat algorithm uses a carefully constructe…

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## [Best way to forcibly passify a result using ForwardDiff?](https://discourse.julialang.org/t/best-way-to-forcibly-passify-a-result-using-forwarddiff/135283)

<div class="topic-metadata">

**Author:** [@afleming](https://discourse.julialang.org/u/afleming)\
**Replies:** 3\
**Last updated:** [January 28, 2026, 10:30am UTC](https://discourse.julialang.org/t/best-way-to-forcibly-passify-a-result-using-forwarddiff/135283 "2026-01-28T10:30:33Z")

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I’m working on the implementation of a time-stepping method and would like to force that part of the computation always be a passive value (in the AD sense). The function in question is a simple broadcasted computation,…

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## [Eigen value and eigen functions of linear operator](https://discourse.julialang.org/t/eigen-value-and-eigen-functions-of-linear-operator/133859)

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**Author:** [@Liris](https://discourse.julialang.org/u/Liris)\
**Replies:** 19\
**Last updated:** [January 28, 2026, 9:20am UTC](https://discourse.julialang.org/t/eigen-value-and-eigen-functions-of-linear-operator/133859 "2026-01-28T09:20:20Z")

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I am doing the linear stability analysis of a system of equations representing a free surface flow, which typically ends up with a generalised eigenvalue problem of the form: L\_{1} X = \\lambda p(z) u L\_{2} X = \\lambda …

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## [Debugging Container of Constraints in JuMP](https://discourse.julialang.org/t/debugging-container-of-constraints-in-jump/122509)

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**Author:** [@lamont](https://discourse.julialang.org/u/lamont)\
**Replies:** 9\
**Last updated:** [January 28, 2026, 7:56am UTC](https://discourse.julialang.org/t/debugging-container-of-constraints-in-jump/122509 "2026-01-28T07:56:50Z")

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I’m trying to debug a container of constraints built using the vectorized linear algebra syntax and trying to go in through the MOI interface to check the constraint value based on the start\_value of the variables. I’ve…

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## [Catalyst.jl and ModelingToolkit (question after reading about ModelingToolkit license changes)](https://discourse.julialang.org/t/catalyst-jl-and-modelingtoolkit-question-after-reading-about-modelingtoolkit-license-changes/135303)

<div class="topic-metadata">

**Author:** [@twcawm](https://discourse.julialang.org/u/twcawm)\
**Replies:** 1\
**Last updated:** [January 28, 2026, 4:06am UTC](https://discourse.julialang.org/t/catalyst-jl-and-modelingtoolkit-question-after-reading-about-modelingtoolkit-license-changes/135303 "2026-01-28T04:06:51Z")

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Hi, I have been investigating and trying out the Catalyst.jl package (it’s really awesome, by the way!). I saw recently the discussions on ModelingToolkit license changes. Is the plan to keep maintaining Catalyst.jl a…

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## [Issue with \`@lock\`](https://discourse.julialang.org/t/issue-with-lock/135302)

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**Author:** [@WalterMadelim](https://discourse.julialang.org/u/WalterMadelim)\
**Replies:** 2\
**Last updated:** [January 28, 2026, 12:20am UTC](https://discourse.julialang.org/t/issue-with-lock/135302 "2026-01-28T00:20:50Z")

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help?\> @lock @lock l expr Macro version of lock(f, l::AbstractLock) but with expr instead of f function. Expands to: lock(l) try expr finally unlock(l) end I’m not sure if this is a bug. jul…

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## [\[ANN\] Highlights.jl 0.6](https://discourse.julialang.org/t/ann-highlights-jl-0-6/135301)

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**Author:** [@mike](https://discourse.julialang.org/u/mike)\
**Replies:** 0\
**Last updated:** [January 27, 2026, 11:46pm UTC](https://discourse.julialang.org/t/ann-highlights-jl-0-6/135301 "2026-01-27T23:46:43Z")

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Highlights.jl has received some recent updates that switch out the internals to use treesitter (via TreeSitter.jl) language grammars instead of the home-brew system I implemented originally. This has been a long time in …

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## [\[ANN\] Casacore.jl - routines for radio astronomy](https://discourse.julialang.org/t/ann-casacore-jl-routines-for-radio-astronomy/89590)

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**Author:** [@torrance](https://discourse.julialang.org/u/torrance)\
**Replies:** 6\
**Last updated:** [January 27, 2026, 10:51pm UTC](https://discourse.julialang.org/t/ann-casacore-jl-routines-for-radio-astronomy/89590 "2026-01-27T22:51:23Z")

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I’m excited to announce the first public release of Casacore.jl - a high-level Julia wrapper for the popular C++ (radio) astronomy package Casacore. This first release of Casacore.jl focuses on exposing Casacore.Tables …

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## [Julia v1.11.9 testing period](https://discourse.julialang.org/t/julia-v1-11-9-testing-period/135299)

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**Author:** [@dilumaluthge](https://discourse.julialang.org/u/dilumaluthge)\
**Replies:** 0\
**Last updated:** [January 27, 2026, 9:44pm UTC](https://discourse.julialang.org/t/julia-v1-11-9-testing-period/135299 "2026-01-27T21:44:48Z")

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The release-1.11 branch on the Julia repository now contains the set of commits we’re planning to tag as v1.11.9. The list of commits included since v1.11.8 is available here. As a patch release, it should be non-breakin…

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## [\[ANN\] PassStores.jl - an interface to the \`pass\` command](https://discourse.julialang.org/t/ann-passstores-jl-an-interface-to-the-pass-command/135298)

<div class="topic-metadata">

**Author:** [@KyleSJohnston](https://discourse.julialang.org/u/KyleSJohnston)\
**Replies:** 0\
**Last updated:** [January 27, 2026, 9:13pm UTC](https://discourse.julialang.org/t/ann-passstores-jl-an-interface-to-the-pass-command/135298 "2026-01-27T21:13:38Z")

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Hi everyone! I’d like to introduce PassStores.jl, an interface to the unix pass command. This package provides the PassStore struct, a read-only mapping from keys to passwords. Installation & Usage If you already use p…

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## [EEGPlot.jl: A package to plot Multivariate Time Series (interactively and statically)](https://discourse.julialang.org/t/eegplot-jl-a-package-to-plot-multivariate-time-series-interactively-and-statically/135296)

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**Author:** [@Marco-Congedo](https://discourse.julialang.org/u/Marco-Congedo)\
**Replies:** 0\
**Last updated:** [January 27, 2026, 8:03pm UTC](https://discourse.julialang.org/t/eegplot-jl-a-package-to-plot-multivariate-time-series-interactively-and-statically/135296 "2026-01-27T20:03:18Z")

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EEGPlot was meant to be a package to plot interactively EEG data. However, I’m just realizing it can be useful to plot other multivariate time series. The example below plays and plots a chirp, allowing to interact lik…

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## [Matrix of type textbox?](https://discourse.julialang.org/t/matrix-of-type-textbox/135260)

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**Author:** [@BananaMaster3](https://discourse.julialang.org/u/BananaMaster3)\
**Replies:** 6\
**Last updated:** [January 27, 2026, 7:53pm UTC](https://discourse.julialang.org/t/matrix-of-type-textbox/135260 "2026-01-27T19:53:18Z")

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Hey, I want to store my instances of Makie.Textbox in a matrix of size m=(L,L) where L is an integer. The ideal situation would be: matrix = zeros(m, Makie.Textbox) for ... #assign different parts of the matrix to di…

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## [Parallelization with Evolutionary.jl](https://discourse.julialang.org/t/parallelization-with-evolutionary-jl/135286)

<div class="topic-metadata">

**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 8\
**Last updated:** [January 27, 2026, 6:16pm UTC](https://discourse.julialang.org/t/parallelization-with-evolutionary-jl/135286 "2026-01-27T18:16:33Z")

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I would like to run an optimzation with a costly objective function (about 1s execution time) in parallel. The documentation says: If the objective function is heavily CPU-bound, it’s possible to utilize multiple proce…

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## [Stokes Operator is Singular After Applying Dirichlet Boundary Conditions](https://discourse.julialang.org/t/stokes-operator-is-singular-after-applying-dirichlet-boundary-conditions/135278)

<div class="topic-metadata">

**Author:** [@noetheriankoala](https://discourse.julialang.org/u/noetheriankoala)\
**Replies:** 7\
**Last updated:** [January 27, 2026, 5:53pm UTC](https://discourse.julialang.org/t/stokes-operator-is-singular-after-applying-dirichlet-boundary-conditions/135278 "2026-01-27T17:53:11Z")

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Hello! I am trying to implement a simple incompressible Navier-Stokes simulation. I have a mesh consisting of a cylinder with the Stanford bunny excised from its center. When I apply Drichlet boundary conditions, the Sto…

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## [WARNING: Detected access to binding XXX in a world prior to its definition world](https://discourse.julialang.org/t/warning-detected-access-to-binding-xxx-in-a-world-prior-to-its-definition-world/135273)

<div class="topic-metadata">

**Author:** [@tomtom](https://discourse.julialang.org/u/tomtom)\
**Replies:** 7\
**Last updated:** [January 27, 2026, 9:59am UTC](https://discourse.julialang.org/t/warning-detected-access-to-binding-xxx-in-a-world-prior-to-its-definition-world/135273 "2026-01-27T09:59:24Z")

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suddenly as of today (1/26/26) I got a lot of warnings as in the title when launching Julia. Nothing updated, why??? How to avoid those warning? Using 1.12.3

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## [Julia MTK Modeler](https://discourse.julialang.org/t/julia-mtk-modeler/135284)

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**Author:** [@Matthew1](https://discourse.julialang.org/u/Matthew1)\
**Replies:** 0\
**Last updated:** [January 27, 2026, 8:59am UTC](https://discourse.julialang.org/t/julia-mtk-modeler/135284 "2026-01-27T08:59:37Z")

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A real job i.e. not a PhD ‘job’

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## [Using BitArray to index into another Array](https://discourse.julialang.org/t/using-bitarray-to-index-into-another-array/43205)

<div class="topic-metadata">

**Author:** [@a.fas](https://discourse.julialang.org/u/a.fas)\
**Replies:** 10\
**Last updated:** [January 27, 2026, 5:14am UTC](https://discourse.julialang.org/t/using-bitarray-to-index-into-another-array/43205 "2026-01-27T05:14:13Z")

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Hello, I am confused by the error I receive on a simple piece of code involving a BitArray. Here is a MWE: a = \[1 2 3\]; B = \[1 2 3; 4 5 6; 7 8 9\]; ids = all(a. == B, dims=2); Everything works as intended up to here and…

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## [Loading an image in place](https://discourse.julialang.org/t/loading-an-image-in-place/135276)

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**Author:** [@mj2984](https://discourse.julialang.org/u/mj2984)\
**Replies:** 4\
**Last updated:** [January 26, 2026, 10:50pm UTC](https://discourse.julialang.org/t/loading-an-image-in-place/135276 "2026-01-26T22:50:03Z")

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Is there any method available in general libraries that can load images to a pre allocated array (to avoid allocations during runtime), assuming the user knows the image size (or pre allocates a larger array and fills a …

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## [Julia1.12 world age problem related to PlotlyJS.jl (WebIO)](https://discourse.julialang.org/t/julia1-12-world-age-problem-related-to-plotlyjs-jl-webio/135162)

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**Author:** [@LaurentPlagne](https://discourse.julialang.org/u/LaurentPlagne)\
**Replies:** 17\
**Last updated:** [January 26, 2026, 9:52pm UTC](https://discourse.julialang.org/t/julia1-12-world-age-problem-related-to-plotlyjs-jl-webio/135162 "2026-01-26T21:52:03Z")

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Hi, A warning (about world age) is fetched when I load my project since I switched to Julia 1.12. My project uses PlotlyJS.jl which is the only package in Project.toml being related to WebIO.jl. WARNING: Detected acce…

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## [Workspaces - how?](https://discourse.julialang.org/t/workspaces-how/133181)

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**Author:** [@LeePhillips](https://discourse.julialang.org/u/LeePhillips)\
**Replies:** 10\
**Last updated:** [January 26, 2026, 9:34pm UTC](https://discourse.julialang.org/t/workspaces-how/133181 "2026-01-26T21:34:22Z")

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Workspaces, described in the 1.12 announcement, sound useful, but after reading this and any documentation I could find they are still mysterious to me. How do I make a workspace and use it? Do I edit the Project file di…

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## [JuliaCon 2026: Engineering with Julia: Call for Proposals](https://discourse.julialang.org/t/juliacon-2026-engineering-with-julia-call-for-proposals/135275)

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**Author:** [@AkchurinDA](https://discourse.julialang.org/u/AkchurinDA)\
**Replies:** 0\
**Last updated:** [January 26, 2026, 7:29pm UTC](https://discourse.julialang.org/t/juliacon-2026-engineering-with-julia-call-for-proposals/135275 "2026-01-26T19:29:18Z")

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Engineering with Julia We are pleased to invite engineering researchers, industry professionals, and educators to submit their latest work to the “Engineering with Julia” minisymposium, which will be held as part of Juli…

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## [Use of Reactant.jl on existing framework](https://discourse.julialang.org/t/use-of-reactant-jl-on-existing-framework/135261)

<div class="topic-metadata">

**Author:** [@albertomercurio](https://discourse.julialang.org/u/albertomercurio)\
**Replies:** 9\
**Last updated:** [January 26, 2026, 4:09pm UTC](https://discourse.julialang.org/t/use-of-reactant-jl-on-existing-framework/135261 "2026-01-26T16:09:17Z")

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Hello, I have some generic function that tests some functionalities of a package. The function does something like this function shared\_function(T, array\_type) x = rand(T, 10, 10) dx = array\_type(x) @test s…

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## [Increase margin of combined plot made out of subplots with Plots.jl](https://discourse.julialang.org/t/increase-margin-of-combined-plot-made-out-of-subplots-with-plots-jl/135270)

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**Author:** [@Fourier](https://discourse.julialang.org/u/Fourier)\
**Replies:** 2\
**Last updated:** [January 26, 2026, 2:23pm UTC](https://discourse.julialang.org/t/increase-margin-of-combined-plot-made-out-of-subplots-with-plots-jl/135270 "2026-01-26T14:23:00Z")

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I am plotting multiple plots in a combined plot like this: using Plots using Plots.Measures: mm plots = Vector{Any}() for (i,j) in Iterators.product(1:4, 1:4) p = scatter(rand(100), xlabel="X-axis $i,$j", ylabel="Y…

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## [Gaussian Copula Priors in Turing: Auto-differentiation Error with Beta Quantile Function](https://discourse.julialang.org/t/gaussian-copula-priors-in-turing-auto-differentiation-error-with-beta-quantile-function/132779)

<div class="topic-metadata">

**Author:** [@giovannitinervia9](https://discourse.julialang.org/u/giovannitinervia9)\
**Replies:** 7\
**Last updated:** [January 26, 2026, 1:16pm UTC](https://discourse.julialang.org/t/gaussian-copula-priors-in-turing-auto-differentiation-error-with-beta-quantile-function/132779 "2026-01-26T13:16:37Z")

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I’m trying to fit a Bayesian model in Turing that uses Gaussian copula priors for parameters bounded in (0, 1). The baseline model with independent priors works fine, but when I introduce copula-based correlations, I enc…

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## [Matrix padding](https://discourse.julialang.org/t/matrix-padding/135250)

<div class="topic-metadata">

**Author:** [@rokke](https://discourse.julialang.org/u/rokke)\
**Replies:** 6\
**Last updated:** [January 26, 2026, 12:37pm UTC](https://discourse.julialang.org/t/matrix-padding/135250 "2026-01-26T12:37:59Z")

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ok, I started opening things up to look at doing Pretty-printing small n-d arrays, but I came across a interesting choice which I wanted to make sure wasn’t a deliberate design decision. the left and right padding are co…

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## [Mixed agent types in OpenStreetMapSpace](https://discourse.julialang.org/t/mixed-agent-types-in-openstreetmapspace/135272)

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**Author:** [@Christopher\_Fisher](https://discourse.julialang.org/u/Christopher_Fisher)\
**Replies:** 4\
**Last updated:** [January 26, 2026, 12:28pm UTC](https://discourse.julialang.org/t/mixed-agent-types-in-openstreetmapspace/135272 "2026-01-26T12:28:21Z")

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Hello, I am interested in developing a simulation with Agents.jl involving motor vehicles and pedestrians. The goal is to analyze the impact of pedestrian traffic on motor vehicle traffic. In this simulation, motor vehi…

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## [\[ANN\] FastTanhSinhQuadrature.jl: High-Performance SIMD-Accelerated Numerical Integration](https://discourse.julialang.org/t/ann-fasttanhsinhquadrature-jl-high-performance-simd-accelerated-numerical-integration/135271)

<div class="topic-metadata">

**Author:** [@svretina](https://discourse.julialang.org/u/svretina)\
**Replies:** 3\
**Last updated:** [January 26, 2026, 12:08pm UTC](https://discourse.julialang.org/t/ann-fasttanhsinhquadrature-jl-high-performance-simd-accelerated-numerical-integration/135271 "2026-01-26T12:08:42Z")

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Hi everyone, I’m excited to announce FastTanhSinhQuadrature.jl, a new package for high-precision numerical integration targeting performance-critical applications and high-precision requirements (Float64, Double64, BigF…

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## [Memory usage & garbage collection of Dagger](https://discourse.julialang.org/t/memory-usage-garbage-collection-of-dagger/133324)

<div class="topic-metadata">

**Author:** [@Rutger0000](https://discourse.julialang.org/u/Rutger0000)\
**Replies:** 6\
**Last updated:** [January 26, 2026, 9:58am UTC](https://discourse.julialang.org/t/memory-usage-garbage-collection-of-dagger/133324 "2026-01-26T09:58:44Z")

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Hi all, Problem: There is a heavy\_computation() which returns a large Array. The computation of the heavy\_computation() is parallelized with the help of Dagger.jl. The DTasks are spawned and later fetched. Running thi…

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## [Can the compiler hoist constant structure out of the loop?](https://discourse.julialang.org/t/can-the-compiler-hoist-constant-structure-out-of-the-loop/135257)

<div class="topic-metadata">

**Author:** [@WalterMadelim](https://discourse.julialang.org/u/WalterMadelim)\
**Replies:** 5\
**Last updated:** [January 26, 2026, 9:41am UTC](https://discourse.julialang.org/t/can-the-compiler-hoist-constant-structure-out-of-the-loop/135257 "2026-01-26T09:41:20Z")

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In practice I may want to write this function (only r.x is the object being considered, other parts are less relevant) function f!(r, I) for i=I r.x\[i\] = rand(Int) end end Assume now the structure r.x i…

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## [Singular BVP with integrable boundaries](https://discourse.julialang.org/t/singular-bvp-with-integrable-boundaries/135224)

<div class="topic-metadata">

**Author:** [@NoFishLikeIan](https://discourse.julialang.org/u/NoFishLikeIan)\
**Replies:** 2\
**Last updated:** [January 26, 2026, 7:13am UTC](https://discourse.julialang.org/t/singular-bvp-with-integrable-boundaries/135224 "2026-01-26T07:13:46Z")

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I’m solving a singular first-order, two dimensional ODE arising in reputation games (Faingold & Sannikov, 2011). On \\phi \\in \[0, 1\], I have u' = \\frac{v}{\\phi(1-\\phi)} \\\\ v' = \\frac{1}{\\phi(1-\\phi)} \\left(v + 2\\rho \\f…

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