# Latest

**URL:** https://discourse.julialang.org/latest.md?page=211

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

**Page:** 212

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## [Solving a matrix least-squares with LinearSolve.jl](https://discourse.julialang.org/t/solving-a-matrix-least-squares-with-linearsolve-jl/126367)

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**Author:** [@smallpondtom](https://discourse.julialang.org/u/smallpondtom)\
**Replies:** 2\
**Last updated:** [February 28, 2025, 2:28pm UTC](https://discourse.julialang.org/t/solving-a-matrix-least-squares-with-linearsolve-jl/126367 "2025-02-28T14:28:51Z")

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Hi. I’ve been trying out LinearSolve.jl for a bit, and I happened to notice that this package is generally for \\min \\| \\mathbf{Ax} - \\mathbf{b} \\|\_2^2 where \\mathbf{b},\\mathbf{x} are vectors. My problem, on the other…

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## [Help needed with Documentation](https://discourse.julialang.org/t/help-needed-with-documentation/126417)

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**Author:** [@TimG](https://discourse.julialang.org/u/TimG)\
**Replies:** 2\
**Last updated:** [February 28, 2025, 1:55pm UTC](https://discourse.julialang.org/t/help-needed-with-documentation/126417 "2025-02-28T13:55:40Z")

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I’ve made a significant PR to XLSX.jl. It passes all tests except for the test for documentation. I’ve never done formal documentation before, and I don’t really understand what is going on. I’ve tried reading the help…

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## [Question about singular matrix inversion](https://discourse.julialang.org/t/question-about-singular-matrix-inversion/126403)

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**Author:** [@fdekerme](https://discourse.julialang.org/u/fdekerme)\
**Replies:** 2\
**Last updated:** [February 28, 2025, 12:59pm UTC](https://discourse.julialang.org/t/question-about-singular-matrix-inversion/126403 "2025-02-28T12:59:10Z")

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Hello :grinning:, I was wondering why inversion works (when it shouldn’t) with floats, but returns an error with integers? Is it a rounding issue? julia\> inv(\[0.23 0.23; 0.3 0.3\]) 2×2 Matrix{Float64}: -3.3777e17 2.5…

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## [How can I access my \\\\wsl$\\Ubuntu files with joinpath() in pluto notebooks?](https://discourse.julialang.org/t/how-can-i-access-my-wsl-ubuntu-files-with-joinpath-in-pluto-notebooks/121861)

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**Author:** [@selinguler94](https://discourse.julialang.org/u/selinguler94)\
**Replies:** 2\
**Last updated:** [February 28, 2025, 11:57am UTC](https://discourse.julialang.org/t/how-can-i-access-my-wsl-ubuntu-files-with-joinpath-in-pluto-notebooks/121861 "2025-02-28T11:57:56Z")

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I want to access my files from wsl ubuntu but this format of code has syntax error only resolved by removing “$”, but that probably would cause Windows to fail accessing to my Ubuntu files. HOME = joinpath(ENV\[“HOME”\], …

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## [Julia v1.11.4 testing period](https://discourse.julialang.org/t/julia-v1-11-4-testing-period/126419)

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**Author:** [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Replies:** 0\
**Last updated:** [February 28, 2025, 11:26am UTC](https://discourse.julialang.org/t/julia-v1-11-4-testing-period/126419 "2025-02-28T11:26:01Z")

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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 v1.11.4. The list of commits included since v1.11.3 is available here. As a patch release, it should be non-breakin…

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## [GLMakie does not seem to compile in a notebook in cursor](https://discourse.julialang.org/t/glmakie-does-not-seem-to-compile-in-a-notebook-in-cursor/126411)

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**Author:** [@hsharsh](https://discourse.julialang.org/u/hsharsh)\
**Replies:** 2\
**Last updated:** [February 28, 2025, 10:34am UTC](https://discourse.julialang.org/t/glmakie-does-not-seem-to-compile-in-a-notebook-in-cursor/126411 "2025-02-28T10:34:20Z")

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I am trying to use GLMakie in a notebook in cursor but when I run using GLMakie it gives me a load error ERROR: LoadError: UndefVarError: \`px\_per\_unit\` not defined in \`Makie\` Suggestion: check for spelling errors or m…

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## [Announcing TSFrames.jl (formerly TSx) v0.1.0: A timeseries data manipulation package based on DataFrames](https://discourse.julialang.org/t/announcing-tsframes-jl-formerly-tsx-v0-1-0-a-timeseries-data-manipulation-package-based-on-dataframes/91264)

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**Author:** [@chiraganand](https://discourse.julialang.org/u/chiraganand)\
**Replies:** 33\
**Last updated:** [February 28, 2025, 5:27am UTC](https://discourse.julialang.org/t/announcing-tsframes-jl-formerly-tsx-v0-1-0-a-timeseries-data-manipulation-package-based-on-dataframes/91264 "2025-02-28T05:27:14Z")

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TSFrames provides a convenient interface for performing standard manipulations of timeseries data. The package uses DataFrame at it’s core to allow powerful data manipulation functions while being lightweight. A lot of f…

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## [MCMCTempering public consumption? (2024)](https://discourse.julialang.org/t/mcmctempering-public-consumption-2024/122600)

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**Author:** [@dlakelan](https://discourse.julialang.org/u/dlakelan)\
**Replies:** 1\
**Last updated:** [February 28, 2025, 1:40am UTC](https://discourse.julialang.org/t/mcmctempering-public-consumption-2024/122600 "2025-02-28T01:40:39Z")

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What’s the situation with MCMCTempering.jl? I see 10 months back or so there was some discussion of reviving it, Hamiltonian Monte Carlo gets stuck at tiny local maxima - #14 by torfjelde I’ve tried the following simpl…

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## [Resetting some states in a batch in Lux.jl recurrent layers](https://discourse.julialang.org/t/resetting-some-states-in-a-batch-in-lux-jl-recurrent-layers/126402)

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**Author:** [@emiwar](https://discourse.julialang.org/u/emiwar)\
**Replies:** 0\
**Last updated:** [February 27, 2025, 11:47pm UTC](https://discourse.julialang.org/t/resetting-some-states-in-a-batch-in-lux-jl-recurrent-layers/126402 "2025-02-27T23:47:52Z")

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Hi, I’m writing a Deep RL (PPO) implementation using Lux.jl and want to add support for recurrent networks. My issue is that I have a batch of environments and at every time step some of them may reset due to the agent …

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## [What should I do when asked for a private key loaction when adding a private repository on windows](https://discourse.julialang.org/t/what-should-i-do-when-asked-for-a-private-key-loaction-when-adding-a-private-repository-on-windows/29201)

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**Author:** [@HBaghdadi1995](https://discourse.julialang.org/u/HBaghdadi1995)\
**Replies:** 20\
**Last updated:** [February 27, 2025, 10:40pm UTC](https://discourse.julialang.org/t/what-should-i-do-when-asked-for-a-private-key-loaction-when-adding-a-private-repository-on-windows/29201 "2025-02-27T22:40:46Z")

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When trying to add my private repository using the julia repl. It sops adding with a line saying Private key location for 'git@github.com' \[C:\\Users\\\[username\]\\.ssh\\id\_rsa\]: I’m not entirely sure what I should type in a…

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## [Registering functions with several arguments in Symbolics](https://discourse.julialang.org/t/registering-functions-with-several-arguments-in-symbolics/96359)

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**Author:** [@PABLO\_ESTEBAN\_MONTES](https://discourse.julialang.org/u/PABLO_ESTEBAN_MONTES)\
**Replies:** 4\
**Last updated:** [February 27, 2025, 10:34pm UTC](https://discourse.julialang.org/t/registering-functions-with-several-arguments-in-symbolics/96359 "2025-02-27T22:34:13Z")

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Hello I have an issue of scalability with registering functions in Julia. I need to register a function of several variables in order to be able to define derivatives of that function, so that Symbolics can stop tracing…

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## [Understanding AbstractFloat Arrays](https://discourse.julialang.org/t/understanding-abstractfloat-arrays/126374)

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**Author:** [@Luis\_Alberto\_R](https://discourse.julialang.org/u/Luis_Alberto_R)\
**Replies:** 6\
**Last updated:** [February 27, 2025, 9:48pm UTC](https://discourse.julialang.org/t/understanding-abstractfloat-arrays/126374 "2025-02-27T21:48:24Z")

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I’m having a hard time understanding the size (in bytes) of Arrays with AbstractFloat types because of the following: julia\> ar1 = Array{AbstractFloat,3}(rand(50,50,50)); julia\> ar2 = Array{Float64,3}(rand(50,50,50)); …

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## [JuMP solve\_time not matching actual time](https://discourse.julialang.org/t/jump-solve-time-not-matching-actual-time/126397)

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**Author:** [@BMI\_OR](https://discourse.julialang.org/u/BMI_OR)\
**Replies:** 3\
**Last updated:** [February 27, 2025, 9:33pm UTC](https://discourse.julialang.org/t/jump-solve-time-not-matching-actual-time/126397 "2025-02-27T21:33:40Z")

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I am executing an algorithm that iteratively executes the following function to solve a problem: function solve\_subproblem(model, z, q, v) fix.(model\[:z\_copy\], z) fix.(model\[:q\_copy\], q) fix.(model\[:v\_copy\],…

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## [PowerPC will be demoted to Tier 4 in Julia 1.12 and later](https://discourse.julialang.org/t/powerpc-will-be-demoted-to-tier-4-in-julia-1-12-and-later/122923)

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**Author:** [@dilumaluthge](https://discourse.julialang.org/u/dilumaluthge)\
**Replies:** 5\
**Last updated:** [February 27, 2025, 6:49pm UTC](https://discourse.julialang.org/t/powerpc-will-be-demoted-to-tier-4-in-julia-1-12-and-later/122923 "2025-02-27T18:49:50Z")

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For Julia 1.12 and later, PowerPC will be demoted to Tier 4, and release binaries will not be available for download. Julia 1.10.x and 1.11.x will continue to have support for PowerPC on Linux at the existing support ti…

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## [Anonymous module usage break precompilation](https://discourse.julialang.org/t/anonymous-module-usage-break-precompilation/126368)

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**Author:** [@orebas](https://discourse.julialang.org/u/orebas)\
**Replies:** 3\
**Last updated:** [February 27, 2025, 7:55am UTC](https://discourse.julialang.org/t/anonymous-module-usage-break-precompilation/126368 "2025-02-27T07:55:41Z")

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So, it’s a bit complicated to explain the set up here, but it’s rare (and refreshing!) to get an error that pulls no punches and says “don’t do this”: ERROR: LoadError: Evaluation into the closed module \`anonymous\` brea…

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## [Implementing a ConvNet that doesn't allocate during inference (SimpleChains.jl?)](https://discourse.julialang.org/t/implementing-a-convnet-that-doesnt-allocate-during-inference-simplechains-jl/126365)

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**Author:** [@sefffal](https://discourse.julialang.org/u/sefffal)\
**Replies:** 3\
**Last updated:** [February 27, 2025, 5:24pm UTC](https://discourse.julialang.org/t/implementing-a-convnet-that-doesnt-allocate-during-inference-simplechains-jl/126365 "2025-02-27T17:24:57Z")

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Hi all, Myself and a student are trying to implement a simple, relatively small convolutional neural network. The trick is, we need it to run as part of our existing real time controller (implemented in Julia, see Case …

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## [Working with private packages via SSH in vscode on Windows 11](https://discourse.julialang.org/t/working-with-private-packages-via-ssh-in-vscode-on-windows-11/126382)

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**Author:** [@sairus7](https://discourse.julialang.org/u/sairus7)\
**Replies:** 3\
**Last updated:** [February 27, 2025, 5:02pm UTC](https://discourse.julialang.org/t/working-with-private-packages-via-ssh-in-vscode-on-windows-11/126382 "2025-02-27T17:02:07Z")

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On a fresh Windows 11 machine I’m trying to add private package (or private registry) via SSH and found that vscode terminal works differently from external Julia terminal. I followed instructions from LocalRegistry.jl…

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## [Minimal Julia: What do you want in Julia, or not?](https://discourse.julialang.org/t/minimal-julia-what-do-you-want-in-julia-or-not/113569)

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**Author:** [@Palli](https://discourse.julialang.org/u/Palli)\
**Replies:** 37\
**Last updated:** [February 27, 2025, 4:52pm UTC](https://discourse.julialang.org/t/minimal-julia-what-do-you-want-in-julia-or-not/113569 "2025-02-27T16:52:34Z")

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We could have radically smaller Julia; at least 177 MB smaller (even more so with UPX compression), e.g. compiled Julia binary executables, if we want to, by a) dropping stuff and b) compressing the rest more. A lot of w…

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## [Text To Speech in Julia](https://discourse.julialang.org/t/text-to-speech-in-julia/104189)

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**Author:** [@sadish-d](https://discourse.julialang.org/u/sadish-d)\
**Replies:** 4\
**Last updated:** [February 27, 2025, 10:28am UTC](https://discourse.julialang.org/t/text-to-speech-in-julia/104189 "2025-02-27T10:28:37Z")

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Is there any open-source Text to Speech (TTS) option available in Julia that: can save to (.ogg) file, and has a licence permitting commercial use Doesn’t look like Windows and MacOS allow free commercial use. Looks …

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## [\[ANN\] Chevrons.jl: friendly \>\> chevron \>\> based data piping](https://discourse.julialang.org/t/ann-chevrons-jl-friendly-chevron-based-data-piping/126066)

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**Author:** [@cjdoris](https://discourse.julialang.org/u/cjdoris)\
**Replies:** 9\
**Last updated:** [February 27, 2025, 10:43am UTC](https://discourse.julialang.org/t/ann-chevrons-jl-friendly-chevron-based-data-piping/126066 "2025-02-27T10:43:57Z")

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Announcing Chevrons.jl I’ve made another package for chaining/piping data transformations together, similar to Chain.jl and Pipe.jl, stealing some of their ideas but with nicer \>\>-based syntax and REPL integration. Here…

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## [Avoiding allocations in jacobian system](https://discourse.julialang.org/t/avoiding-allocations-in-jacobian-system/126376)

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**Author:** [@AP9](https://discourse.julialang.org/u/AP9)\
**Replies:** 2\
**Last updated:** [February 27, 2025, 10:26am UTC](https://discourse.julialang.org/t/avoiding-allocations-in-jacobian-system/126376 "2025-02-27T10:26:06Z")

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Why is the below function allocating, and how can I optimize it so it does not allocate? β = 100 S(x) = 1/(1+exp(-β\*x)) S\_prime(x) = β\*S(x)\*(1-S(x)) function jacobian\_system(u, p, n) ω, ω\_A, A = p x, y, s = u …

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## [Filtering private API](https://discourse.julialang.org/t/filtering-private-api/126349)

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**Author:** [@s\_amap](https://discourse.julialang.org/u/s_amap)\
**Replies:** 1\
**Last updated:** [February 27, 2025, 9:54am UTC](https://discourse.julialang.org/t/filtering-private-api/126349 "2025-02-27T09:54:55Z")

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A bit of a naive question regarding documenter indexing : I have a package with a public API, and some internal developer functions that are mostly of no interest to users, with a few potential exceptions for power user…

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## [Solver does not return solution with ALMOST\_OPTIMAL status](https://discourse.julialang.org/t/solver-does-not-return-solution-with-almost-optimal-status/126280)

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**Author:** [@priantop](https://discourse.julialang.org/u/priantop)\
**Replies:** 3\
**Last updated:** [February 27, 2025, 9:53am UTC](https://discourse.julialang.org/t/solver-does-not-return-solution-with-almost-optimal-status/126280 "2025-02-27T09:53:13Z")

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Hi, I am running a large LP model using COPT solver (COPT.jl) where the termination status is IMPRECISE, below is the log snippet Using Cardinal Optimizer v7.2.4 on Windows Hardware has 32 cores and 64 threads. Using …

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## [\[ANN\] UnitTypes v1.0.0](https://discourse.julialang.org/t/ann-unittypes-v1-0-0/126351)

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**Author:** [@bcon](https://discourse.julialang.org/u/bcon)\
**Replies:** 6\
**Last updated:** [February 27, 2025, 7:20am UTC](https://discourse.julialang.org/t/ann-unittypes-v1-0-0/126351 "2025-02-27T07:20:39Z")

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This package provides physical units as Julia types. julia\> using UnitTypes julia\> x = Meter(3) 3m julia\> typeof(x) Meter julia\> typeof(x) \<: AbstractLength true julia\> typeof(x) \<: AbstractCapacitance false This a…

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## [Docker image build OOM](https://discourse.julialang.org/t/docker-image-build-oom/126148)

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**Author:** [@ohmsweetohm1](https://discourse.julialang.org/u/ohmsweetohm1)\
**Replies:** 1\
**Last updated:** [February 27, 2025, 6:40am UTC](https://discourse.julialang.org/t/docker-image-build-oom/126148 "2025-02-27T06:40:13Z")

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I’m trying to package a Julia app as a docker image. Since, as of writing this, package relocatability is not solved; hence, this is the only way to share an app. In my dockerfile I run: ###############################…

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## [PowerModels Timeseries Simulation](https://discourse.julialang.org/t/powermodels-timeseries-simulation/122615)

<div class="topic-metadata">

**Author:** [@PB-vines](https://discourse.julialang.org/u/PB-vines)\
**Replies:** 5\
**Last updated:** [February 27, 2025, 5:55am UTC](https://discourse.julialang.org/t/powermodels-timeseries-simulation/122615 "2025-02-27T05:55:20Z")

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Hello, I am new to PowerModels and looking forward to learning more. I have a power network, along with generation data and renewable energy resource data. I want to run this grid for at least 1 day at hourly intervals…

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## [Using a neural network inside a function for DifferentialEquations.jl solve](https://discourse.julialang.org/t/using-a-neural-network-inside-a-function-for-differentialequations-jl-solve/126359)

<div class="topic-metadata">

**Author:** [@dameka](https://discourse.julialang.org/u/dameka)\
**Replies:** 1\
**Last updated:** [February 27, 2025, 12:29am UTC](https://discourse.julialang.org/t/using-a-neural-network-inside-a-function-for-differentialequations-jl-solve/126359 "2025-02-27T00:29:14Z")

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I’m trying to use a neural network as a component of a differential equation to be solved by ODEsolve: begin # Import needed packages using Flux using ForwardDiff using DifferentialEquations end begin function f2(…

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## [GMT fails to build in Julia 1.11.0-rc3](https://discourse.julialang.org/t/gmt-fails-to-build-in-julia-1-11-0-rc3/126362)

<div class="topic-metadata">

**Author:** [@jackblyle](https://discourse.julialang.org/u/jackblyle)\
**Replies:** 3\
**Last updated:** [February 26, 2025, 11:51pm UTC](https://discourse.julialang.org/t/gmt-fails-to-build-in-julia-1-11-0-rc3/126362 "2025-02-26T23:51:18Z")

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Hi Folks, I’m using Julia 1.11.0-rc3 on Fedora 41 from JupyterLab. I can’t get the GMT package to build. It worked in March almost a year ago, but I have updated Julia since then. The process looks like this: julia\> …

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## [How to link to a type definition?](https://discourse.julialang.org/t/how-to-link-to-a-type-definition/126332)

<div class="topic-metadata">

**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 2\
**Last updated:** [February 26, 2025, 9:53pm UTC](https://discourse.julialang.org/t/how-to-link-to-a-type-definition/126332 "2025-02-26T21:53:18Z")

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How can I link to a type definition in a docstring? Not working: """ calculate\_AIC\_matrices!(body\_aero::BodyAerodynamics, model::\[Model\](@ref), core\_radius\_fraction::Float64, …

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## [JuMP / SCS tutorial example fails on simple(?) data](https://discourse.julialang.org/t/jump-scs-tutorial-example-fails-on-simple-data/125857)

<div class="topic-metadata">

**Author:** [@healyp](https://discourse.julialang.org/u/healyp)\
**Replies:** 5\
**Last updated:** [February 26, 2025, 8:40pm UTC](https://discourse.julialang.org/t/jump-scs-tutorial-example-fails-on-simple-data/125857 "2025-02-26T20:40:44Z")

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Using the code verbatim as provided in the JuMP conic programming tutorial the SCS solver fails after 100,000 iterations on the matrix of five 2-D points below julia\> S 5×2 Matrix{Float64}: 39.1 18.7 39.5 17.4 40.…

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