# Latest

**URL:** https://discourse.julialang.org/latest.md?page=61

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

**Page:** 62

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

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**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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## [How to Print/Parse a TimePeriod with a Specific Format?](https://discourse.julialang.org/t/how-to-print-parse-a-timeperiod-with-a-specific-format/78322)

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**Author:** [@MLackner](https://discourse.julialang.org/u/MLackner)\
**Replies:** 9\
**Last updated:** [January 26, 2026, 3:41am UTC](https://discourse.julialang.org/t/how-to-print-parse-a-timeperiod-with-a-specific-format/78322 "2026-01-26T03:41:12Z")

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Hi! I want to parse and print durations in the format "HH:MM:SS.sss". Parsing seems to be pretty simple. if I do for example julia\> str = "1:02:23.234" "1:02:23.234" julia\> t = Time(str) 01:02:23.234 this seems to wor…

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## [Are there alternatives to Diagonal and eigvals compatible with Reactant?](https://discourse.julialang.org/t/are-there-alternatives-to-diagonal-and-eigvals-compatible-with-reactant/135081)

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**Author:** [@marcsgil](https://discourse.julialang.org/u/marcsgil)\
**Replies:** 13\
**Last updated:** [January 26, 2026, 3:22am UTC](https://discourse.julialang.org/t/are-there-alternatives-to-diagonal-and-eigvals-compatible-with-reactant/135081 "2026-01-26T03:22:02Z")

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Hello! I’m in the process of refactoring a complicated function so that it can be compiled by Reactant. It has not been very straightforward, but the speedup I’ve seen so far certainly justifies the effort. Nonetheless…

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## [How to create a standalone \`JuMP.Containers.SparseAxisArray{Float64, n, Tuple{Int, ...}}\`?](https://discourse.julialang.org/t/how-to-create-a-standalone-jump-containers-sparseaxisarray-float64-n-tuple-int/135253)

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**Author:** [@WalterMadelim](https://discourse.julialang.org/u/WalterMadelim)\
**Replies:** 2\
**Last updated:** [January 26, 2026, 12:02am UTC](https://discourse.julialang.org/t/how-to-create-a-standalone-jump-containers-sparseaxisarray-float64-n-tuple-int/135253 "2026-01-26T00:02:02Z")

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I’m interested in the X per se, as a container of a set of Float64 numbers (not depending on some JuMP variable x built beforehand). julia\> import JuMP, Gurobi julia\> model = JuMP.direct\_model(Gurobi.Optimizer()); jul…

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## [Saving GLMakie figure without widgets](https://discourse.julialang.org/t/saving-glmakie-figure-without-widgets/135258)

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**Author:** [@AdamWysokinski](https://discourse.julialang.org/u/AdamWysokinski)\
**Replies:** 2\
**Last updated:** [January 25, 2026, 9:42pm UTC](https://discourse.julialang.org/t/saving-glmakie-figure-without-widgets/135258 "2026-01-25T21:42:00Z")

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Hi, Is there any way to save GLMakie figure without buttons/sliders? MWE: p = Figure(size=(500, 500)) ax = Axis(p\[1, 1\]) b = Button(p\[2, 1\], label="button", tellwidth=false) GLMakie.scatter!(1, 1) GLMakie.save("test.p…

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## [\[ANN\] Automatic borrow checking at the compiler level, with BorrowChecker.Auto](https://discourse.julialang.org/t/ann-automatic-borrow-checking-at-the-compiler-level-with-borrowchecker-auto/135011)

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**Author:** [@MilesCranmer](https://discourse.julialang.org/u/MilesCranmer)\
**Replies:** 36\
**Last updated:** [January 25, 2026, 8:41pm UTC](https://discourse.julialang.org/t/ann-automatic-borrow-checking-at-the-compiler-level-with-borrowchecker-auto/135011 "2026-01-25T20:41:45Z")

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Presenting… BorrowChecker.Auto! Happy to share BorrowChecker.jl’s Auto layer, which comes with a macro BorrowChecker.@auto, that forms an automatic best-effort Rust-like borrow checker that runs directly on Julia’s S…

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## [MTK problem from tests fails](https://discourse.julialang.org/t/mtk-problem-from-tests-fails/135226)

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**Author:** [@ohmsweetohm1](https://discourse.julialang.org/u/ohmsweetohm1)\
**Replies:** 3\
**Last updated:** [January 25, 2026, 8:02pm UTC](https://discourse.julialang.org/t/mtk-problem-from-tests-fails/135226 "2026-01-25T20:02:55Z")

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I took the RC example from the tests of ModelingToolkitStandardLibrary.jl: ModelingToolkitStandardLibrary.jl/test/Electrical/analog.jl at main · SciML/ModelingToolkitStandardLibrary.jl · GitHub using ModelingToolkitStan…

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## [\[Dyad\] “Cyclic guesses detected” in Dyad from non-ideal RLC](https://discourse.julialang.org/t/dyad-cyclic-guesses-detected-in-dyad-from-non-ideal-rlc/135249)

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**Author:** [@junmorenodi99](https://discourse.julialang.org/u/junmorenodi99)\
**Replies:** 5\
**Last updated:** [January 25, 2026, 4:24pm UTC](https://discourse.julialang.org/t/dyad-cyclic-guesses-detected-in-dyad-from-non-ideal-rlc/135249 "2026-01-25T16:24:23Z")

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Hi everyone, I’ve been experimenting with Dyad using the RLC circuit example from the documentation, except I made it a bit less ideal by adding: coil series resistance ( RL ) capacitor ESR (Rc When I add the capacit…

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## [Best Practices for Mutation with Reactant.jl](https://discourse.julialang.org/t/best-practices-for-mutation-with-reactant-jl/135256)

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**Author:** [@lance\_xwq](https://discourse.julialang.org/u/lance_xwq)\
**Replies:** 1\
**Last updated:** [January 25, 2026, 4:23pm UTC](https://discourse.julialang.org/t/best-practices-for-mutation-with-reactant-jl/135256 "2026-01-25T16:23:01Z")

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Hello, I have been exploring Reactant.jl and JAX to develop a package for my research project. One thing I noticed about JAX is that it does not really allow in-place mutation of variables. I’ve seen several explanation…

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## [Problems with TikzGraphs.jl](https://discourse.julialang.org/t/problems-with-tikzgraphs-jl/135251)

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**Author:** [@iamsuddhasattwa](https://discourse.julialang.org/u/iamsuddhasattwa)\
**Replies:** 6\
**Last updated:** [January 25, 2026, 2:03pm UTC](https://discourse.julialang.org/t/problems-with-tikzgraphs-jl/135251 "2026-01-25T14:03:29Z")

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I installed the TikzGraphs.jl package, and tried to execute the simple sample code provided using TikzGraphs using Graphs g = DiGraph(4) add\_edge!(g, 1, 2) add\_edge!(g, 2, 3) TikzGraphs.plot(g) However I keep getting t…

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## [What does \[ANN\] mean?](https://discourse.julialang.org/t/what-does-ann-mean/135248)

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**Author:** [@npbarnes](https://discourse.julialang.org/u/npbarnes)\
**Replies:** 2\
**Last updated:** [January 25, 2026, 11:26am UTC](https://discourse.julialang.org/t/what-does-ann-mean/135248 "2026-01-25T11:26:34Z")

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Most of the posts under the Package Announcements topic start with \[ANN\]. What does it mean?

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## [Variable Naming in Julia should catch up with Python via snake\_case](https://discourse.julialang.org/t/variable-naming-in-julia-should-catch-up-with-python-via-snake-case/135243)

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**Author:** [@Marc.Cox](https://discourse.julialang.org/u/Marc.Cox)\
**Replies:** 2\
**Last updated:** [January 25, 2026, 3:38am UTC](https://discourse.julialang.org/t/variable-naming-in-julia-should-catch-up-with-python-via-snake-case/135243 "2026-01-25T03:38:35Z")

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Continuing the discussion from Experience report after finishing a (reasonably substantial) Julia project in 2024:

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## [CUDA package having issues due to different versions of CUDA toolkit and NVIDIA driver CUDA version](https://discourse.julialang.org/t/cuda-package-having-issues-due-to-different-versions-of-cuda-toolkit-and-nvidia-driver-cuda-version/134755)

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**Author:** [@Aditya747S](https://discourse.julialang.org/u/Aditya747S)\
**Replies:** 11\
**Last updated:** [January 24, 2026, 10:20pm UTC](https://discourse.julialang.org/t/cuda-package-having-issues-due-to-different-versions-of-cuda-toolkit-and-nvidia-driver-cuda-version/134755 "2026-01-24T22:20:48Z")

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I have CUDA toolkit for CUDA 13.0 and my drivers have CUDA 13.1 which is why I am getting this error in julia Error: You are using CUDA 13.1.0, but CUDA.jl was precompiled for CUDA 13.0.0. │ │ This is unexpected; pleas…

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## [Saving an Echo State Network (ReservoirComputing.jl)](https://discourse.julialang.org/t/saving-an-echo-state-network-reservoircomputing-jl/95338)

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**Author:** [@monstera](https://discourse.julialang.org/u/monstera)\
**Replies:** 6\
**Last updated:** [January 24, 2026, 6:22pm UTC](https://discourse.julialang.org/t/saving-an-echo-state-network-reservoircomputing-jl/95338 "2026-01-24T18:22:50Z")

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Hi, I am trying to save an Echo State Network (ESN) struct + output Matrix in Julia to load it again in another script to predict a time series. Out of several thousand ESNs, I am choosing the hundred best ones and try …

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## [How to set seed for Random.TaskLocalRNG()?](https://discourse.julialang.org/t/how-to-set-seed-for-random-tasklocalrng/135236)

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**Author:** [@tomtom](https://discourse.julialang.org/u/tomtom)\
**Replies:** 9\
**Last updated:** [January 24, 2026, 5:16pm UTC](https://discourse.julialang.org/t/how-to-set-seed-for-random-tasklocalrng/135236 "2026-01-24T17:16:43Z")

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I see the following: using MLJ Tree = @load DecisionTreeClassifier pkg=DecisionTree julia\> tree = Tree() DecisionTreeClassifier( max\_depth = -1, min\_samples\_leaf = 1, min\_samples\_split = 2, min\_purity\_increase …

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## [Precompilation much slower in 1.11, 1.12 than in LTS (1.10)](https://discourse.julialang.org/t/precompilation-much-slower-in-1-11-1-12-than-in-lts-1-10/135203)

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**Author:** [@mattsignorelli](https://discourse.julialang.org/u/mattsignorelli)\
**Replies:** 16\
**Last updated:** [January 24, 2026, 4:12pm UTC](https://discourse.julialang.org/t/precompilation-much-slower-in-1-11-1-12-than-in-lts-1-10/135203 "2026-01-24T16:12:54Z")

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The title pretty much. See this Github workflow for an example. 1.12 and 1.11 take 8 minutes, vs 1.10 at 3 minutes. Does anyone know why this is happening?

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## [Makie.jl - Deploying docs with Documenter.jl](https://discourse.julialang.org/t/makie-jl-deploying-docs-with-documenter-jl/135234)

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**Author:** [@Marco-Congedo](https://discourse.julialang.org/u/Marco-Congedo)\
**Replies:** 7\
**Last updated:** [January 24, 2026, 3:25pm UTC](https://discourse.julialang.org/t/makie-jl-deploying-docs-with-documenter-jl/135234 "2026-01-24T15:25:48Z")

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I am writing a package for plotting time series. The code is here. The package depends on Makie and GLFW, not on a specific backend, as the plotting function eegplot works differently with the CairoMakie and GLMakie bac…

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## [MTK: updated documentation?](https://discourse.julialang.org/t/mtk-updated-documentation/134937)

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**Author:** [@BLI](https://discourse.julialang.org/u/BLI)\
**Replies:** 30\
**Last updated:** [January 24, 2026, 11:56am UTC](https://discourse.julialang.org/t/mtk-updated-documentation/134937 "2026-01-24T11:56:51Z")

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I am trying to use ModelingToolkit (MTK). In the first example in the documentation, using ModelingToolkit, Plots, OrdinaryDiffEq using ModelingToolkit: t\_nounits as t, D\_nounits as D @mtkmodel FOL begin @parameters…

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## [Julia crashed when using PyCall in multiple threads](https://discourse.julialang.org/t/julia-crashed-when-using-pycall-in-multiple-threads/111004)

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**Author:** [@wly](https://discourse.julialang.org/u/wly)\
**Replies:** 14\
**Last updated:** [January 24, 2026, 10:56am UTC](https://discourse.julialang.org/t/julia-crashed-when-using-pycall-in-multiple-threads/111004 "2026-01-24T10:56:24Z")

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I first make multiple copies of a PyObject, and then access them in multiple threads. Finally, I meet this error. julia -t5 using PyCall py""" class A(): x = 0.0 a = A() """ alist = \[deepcopy(py"a") for i in 1:10…

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## [Multi-GPU inference in Flux.jl](https://discourse.julialang.org/t/multi-gpu-inference-in-flux-jl/135210)

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**Author:** [@Chrysoberyl](https://discourse.julialang.org/u/Chrysoberyl)\
**Replies:** 2\
**Last updated:** [January 24, 2026, 12:07am UTC](https://discourse.julialang.org/t/multi-gpu-inference-in-flux-jl/135210 "2026-01-24T00:07:26Z")

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Flux allows for parallel training with multiple GPUs: GPU Support · Flux In my use case, I need to run inference of a single model on multiple GPUs. Is there a way to load balance inference calls to the model so all GPU…

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## [How to display a LateXString in pluto?](https://discourse.julialang.org/t/how-to-display-a-latexstring-in-pluto/135230)

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**Author:** [@Jean\_Michel](https://discourse.julialang.org/u/Jean_Michel)\
**Replies:** 2\
**Last updated:** [January 23, 2026, 10:05pm UTC](https://discourse.julialang.org/t/how-to-display-a-latexstring-in-pluto/135230 "2026-01-23T22:05:53Z")

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I have my type of objects Mvp (for “multivariate polynomials”) and I have overloaded latexstring for them. For example, for a certain polynomial p I have at the repl: julia\> latexstring(p) L"$x^3+3x^2y+3xy^2+y^3$" If i…

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## [Slow Reactant compilation for modified DeepONet](https://discourse.julialang.org/t/slow-reactant-compilation-for-modified-deeponet/135133)

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**Author:** [@Jan\_Strube](https://discourse.julialang.org/u/Jan_Strube)\
**Replies:** 9\
**Last updated:** [January 23, 2026, 8:55pm UTC](https://discourse.julialang.org/t/slow-reactant-compilation-for-modified-deeponet/135133 "2026-01-23T20:55:23Z")

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I’m trying to implement the modified Deep Operator Network from this paper: Improved architectures and training algorithms for deep operator networks" (arXiv:2110.01654). The addition over the vanilla DeepONet is a set …

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## [Eigenvalues of large, sparse matrices](https://discourse.julialang.org/t/eigenvalues-of-large-sparse-matrices/135208)

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**Author:** [@pjk](https://discourse.julialang.org/u/pjk)\
**Replies:** 11\
**Last updated:** [January 23, 2026, 7:24pm UTC](https://discourse.julialang.org/t/eigenvalues-of-large-sparse-matrices/135208 "2026-01-23T19:24:55Z")

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Hi all, I am working on a problem which involves the calculation of the eigenvalues (specifically the spectral radius) of matrices with a particular structure. These are specifically sparse, asymmetric matrices with bin…

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## [Terminal interaction and precompile times](https://discourse.julialang.org/t/terminal-interaction-and-precompile-times/135225)

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**Author:** [@paulmelis](https://discourse.julialang.org/u/paulmelis)\
**Replies:** 3\
**Last updated:** [January 23, 2026, 5:07pm UTC](https://discourse.julialang.org/t/terminal-interaction-and-precompile-times/135225 "2026-01-23T17:07:02Z")

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Somewhat related to the other threads on precompile times (such as thread and thread), I was wondering about (perceived) long precompilation for very simple and common operations. These seem to have gotten worse as well,…

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## [Using DiffEqGPU for very large systems: size app 1e7-1e8](https://discourse.julialang.org/t/using-diffeqgpu-for-very-large-systems-size-app-1e7-1e8/134718)

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**Author:** [@bpeters](https://discourse.julialang.org/u/bpeters)\
**Replies:** 2\
**Last updated:** [January 23, 2026, 2:10pm UTC](https://discourse.julialang.org/t/using-diffeqgpu-for-very-large-systems-size-app-1e7-1e8/134718 "2026-01-23T14:10:10Z")

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@ChrisRackauckas Dear Chris, I see a huge benefit using DiffEqGPU for my applications (luxdem.uni.lu), in particular to use the power of GPUs of different architectures. My application comes from thermodynamics and req…

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## [How to extract the \*\*numerical differential equations\*\* from a model I built with ModelingToolkit.?](https://discourse.julialang.org/t/how-to-extract-the-numerical-differential-equations-from-a-model-i-built-with-modelingtoolkit/135221)

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**Author:** [@andreas1](https://discourse.julialang.org/u/andreas1)\
**Replies:** 1\
**Last updated:** [January 23, 2026, 1:44pm UTC](https://discourse.julialang.org/t/how-to-extract-the-numerical-differential-equations-from-a-model-i-built-with-modelingtoolkit/135221 "2026-01-23T13:44:54Z")

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hy, I want to extract the numerical differential equations from a model I built with ModelingToolkit. For example: @mtkbuild dgl = System(vcat(eqs\_1, eq2), t) Define problem prob = ODEProblem(dgl, bcs, tspan) Now I w…

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## [Makie: plotting the sample arrow for \`arrows!()\`?](https://discourse.julialang.org/t/makie-plotting-the-sample-arrow-for-arrows/106642)

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**Author:** [@ryofurue](https://discourse.julialang.org/u/ryofurue)\
**Replies:** 1\
**Last updated:** [January 23, 2026, 1:02pm UTC](https://discourse.julialang.org/t/makie-plotting-the-sample-arrow-for-arrows/106642 "2026-01-23T13:02:37Z")

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I’ve just started to use arrows!(). I’ve find it straightforward to use. Now, I’m trying to find a way to plot the sample arrow. See the image, which I plotted using a different program, at the bottom of this message. …

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## [Pumas installation without the automatic juliaup install?](https://discourse.julialang.org/t/pumas-installation-without-the-automatic-juliaup-install/135194)

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**Author:** [@IreneW](https://discourse.julialang.org/u/IreneW)\
**Replies:** 5\
**Last updated:** [January 23, 2026, 10:41am UTC](https://discourse.julialang.org/t/pumas-installation-without-the-automatic-juliaup-install/135194 "2026-01-23T10:41:11Z")

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I’m trying to set up Pumas in VS Code on a school-managed Windows desktop that requires IT administrator approval for software installation. During the initial setup in VS Code, I was prompted to install the Julia langu…

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## [Pass Clustering.Hclust to Makie.dendrogram](https://discourse.julialang.org/t/pass-clustering-hclust-to-makie-dendrogram/135143)

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**Author:** [@alequa](https://discourse.julialang.org/u/alequa)\
**Replies:** 4\
**Last updated:** [January 22, 2026, 5:34pm UTC](https://discourse.julialang.org/t/pass-clustering-hclust-to-makie-dendrogram/135143 "2026-01-22T17:34:14Z")

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Hello, I would like to know how to convert the HClust object to a data format that can be processed by the dendrogram recipe for Makie. There is a quite long pull-request history for the dendrogram recipe, and it seems…

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## [GLMakie on vscode remote backend](https://discourse.julialang.org/t/glmakie-on-vscode-remote-backend/135195)

<div class="topic-metadata">

**Author:** [@freeman](https://discourse.julialang.org/u/freeman)\
**Replies:** 4\
**Last updated:** [January 22, 2026, 4:05pm UTC](https://discourse.julialang.org/t/glmakie-on-vscode-remote-backend/135195 "2026-01-22T16:05:32Z")

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Does anybody know if it’s possible to use GLMakie with vscode remote backend? CairoMaike works. When I try, I get this: Failed to precompile GLMakie \[e9467ef8-e4e7-5192-8a1a-b1aee30e663a\] to "/home/user/.julia/compiled…

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