# Latest

**URL:** https://discourse.julialang.org/latest.md?page=676

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

**Page:** 677

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## [Thread safety of \`mul!\` in \`ToeplitzMatrices.jl\` with FFTW plan inside Factorization](https://discourse.julialang.org/t/thread-safety-of-mul-in-toeplitzmatrices-jl-with-fftw-plan-inside-factorization/100068)

<div class="topic-metadata">

**Author:** [@adomasbaliuka](https://discourse.julialang.org/u/adomasbaliuka)\
**Replies:** 6\
**Last updated:** [June 9, 2023, 7:20am UTC](https://discourse.julialang.org/t/thread-safety-of-mul-in-toeplitzmatrices-jl-with-fftw-plan-inside-factorization/100068 "2023-06-09T07:20:23Z")

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The creation of FFTW plans is not threadsafe https://discourse.julialang.org/t/fftw-plans-for-multiple-threads/21861. (Or is it?) However, if the plan is pre-allocated, that should be thread safe? I want to pre-compute a…

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## [Package versions: see commit hash of dependencies](https://discourse.julialang.org/t/package-versions-see-commit-hash-of-dependencies/100084)

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**Author:** [@ignace](https://discourse.julialang.org/u/ignace)\
**Replies:** 1\
**Last updated:** [June 9, 2023, 7:19am UTC](https://discourse.julialang.org/t/package-versions-see-commit-hash-of-dependencies/100084 "2023-06-09T07:19:05Z")

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Hello, How can this be done: to see the commit hash of a dependency? Thanks!

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## [Is There Package or Method to Calculate Certain Area in Julia (symbolically with SymPy)?](https://discourse.julialang.org/t/is-there-package-or-method-to-calculate-certain-area-in-julia-symbolically-with-sympy/99751)

<div class="topic-metadata">

**Author:** [@Freya\_the\_Goddess](https://discourse.julialang.org/u/Freya_the_Goddess)\
**Replies:** 13\
**Last updated:** [June 9, 2023, 6:43am UTC](https://discourse.julialang.org/t/is-there-package-or-method-to-calculate-certain-area-in-julia-symbolically-with-sympy/99751 "2023-06-09T06:43:02Z")

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Hi all, there are two circles, one is bigger than the other, and overlapping a bit, I want to know could Julia help to calculate the bigger circle shaded area? Maybe this is geometry problem. But it is on Calculus book. …

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## [Inline plot not showing up Makie](https://discourse.julialang.org/t/inline-plot-not-showing-up-makie/100071)

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**Author:** [@Veenty](https://discourse.julialang.org/u/Veenty)\
**Replies:** 1\
**Last updated:** [June 9, 2023, 4:41am UTC](https://discourse.julialang.org/t/inline-plot-not-showing-up-makie/100071 "2023-06-09T04:41:45Z")

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So a couple of days ago i wanted to use GLMakie outside of the inline plot that vscode has (wanted to rotate a 3D plot), so I used Makie.inline!(false) But now I want to use the standard inline plot for CairoMakie and …

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## [Using the GLMakie plotting backend](https://discourse.julialang.org/t/using-the-glmakie-plotting-backend/100013)

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**Author:** [@KZ-Spectra](https://discourse.julialang.org/u/KZ-Spectra)\
**Replies:** 8\
**Last updated:** [June 9, 2023, 4:47am UTC](https://discourse.julialang.org/t/using-the-glmakie-plotting-backend/100013 "2023-06-09T04:47:57Z")

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I want to use GLMakie for 3D plotting, but when I try to do the plotting I get a static image not in a Makie window: https://i.imgur.com/R44xxJa.png Earlier this morning it was working just fine, but I have since then …

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## [How to find Shadow Price in JuMP](https://discourse.julialang.org/t/how-to-find-shadow-price-in-jump/99887)

<div class="topic-metadata">

**Author:** [@Gagan\_Meena](https://discourse.julialang.org/u/Gagan_Meena)\
**Replies:** 6\
**Last updated:** [June 9, 2023, 4:38am UTC](https://discourse.julialang.org/t/how-to-find-shadow-price-in-jump/99887 "2023-06-09T04:38:47Z")

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How to find the shadow price for the equality constraint in the following code? using JuMP, Gurobi include("Data.jl") Market\_dt = PlanningData function Market\_Clearing(Market\_dt) # Sets and Indices n …

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## [An optimization problem on GPU works in Julia v1.8, but does not work in v1.9](https://discourse.julialang.org/t/an-optimization-problem-on-gpu-works-in-julia-v1-8-but-does-not-work-in-v1-9/100036)

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**Author:** [@DennisFang](https://discourse.julialang.org/u/DennisFang)\
**Replies:** 2\
**Last updated:** [June 9, 2023, 4:19am UTC](https://discourse.julialang.org/t/an-optimization-problem-on-gpu-works-in-julia-v1-8-but-does-not-work-in-v1-9/100036 "2023-06-09T04:19:47Z")

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Hello, I’m doing an optimization problem and trying to work on CUDA. I can run my program in Julia v1.8.2 and v1.8.5. However, I get some errors when running on the GPU in Julia v1.9.0 and v1.9.1. Here is a minimum exa…

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## [How to use functions defined in package extensions but not the main package?](https://discourse.julialang.org/t/how-to-use-functions-defined-in-package-extensions-but-not-the-main-package/99979)

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**Author:** [@singularitti](https://discourse.julialang.org/u/singularitti)\
**Replies:** 1\
**Last updated:** [June 8, 2023, 10:35pm UTC](https://discourse.julialang.org/t/how-to-use-functions-defined-in-package-extensions-but-not-the-main-package/99979 "2023-06-08T22:35:18Z")

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I just started using the package extension functionality introduced after v1.9. I am a bit confused about its usage. Can I ask when the package extension is loaded, where are the new functions (which are not defined in t…

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## [ODE solvers - Matlab ode23s vs Rosenbrock23 implementations](https://discourse.julialang.org/t/ode-solvers-matlab-ode23s-vs-rosenbrock23-implementations/99950)

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**Author:** [@Nick1](https://discourse.julialang.org/u/Nick1)\
**Replies:** 5\
**Last updated:** [June 8, 2023, 9:15pm UTC](https://discourse.julialang.org/t/ode-solvers-matlab-ode23s-vs-rosenbrock23-implementations/99950 "2023-06-08T21:15:20Z")

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I am working on solving stiff ODEs and I was comparing MATLAB and Julia solvers. While both give the same solution when the system reaches a steady state, at the beginning there is a small difference for the same relativ…

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## [Cannot build CPLEX even with correct environment variable](https://discourse.julialang.org/t/cannot-build-cplex-even-with-correct-environment-variable/87234)

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**Author:** [@Richard0416](https://discourse.julialang.org/u/Richard0416)\
**Replies:** 5\
**Last updated:** [June 8, 2023, 9:14pm UTC](https://discourse.julialang.org/t/cannot-build-cplex-even-with-correct-environment-variable/87234 "2023-06-08T21:14:33Z")

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Hello! I am trying to add CPLEX to Julia. I download the latest version of CPLEX, 22.1 And also updated the CPLEX.jl package to the latest version, v0.9.4. When running Pkg.build(“CPLEX”), it seems that the path is wron…

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## [Upperbound and Lowerbound of SDDP.jl](https://discourse.julialang.org/t/upperbound-and-lowerbound-of-sddp-jl/100060)

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**Author:** [@Sorooshsa](https://discourse.julialang.org/u/Sorooshsa)\
**Replies:** 1\
**Last updated:** [June 8, 2023, 9:11pm UTC](https://discourse.julialang.org/t/upperbound-and-lowerbound-of-sddp-jl/100060 "2023-06-08T21:11:08Z")

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Hi, I solved a Multi-stage stochastic problem in Julia using SDDP.jl Package. As we know in theory, SDDP.jl is based on diving a problem into the master problem and subproblems and progressively adding cuts (Like Neste…

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## [How to avoid compilation of an uncalled function](https://discourse.julialang.org/t/how-to-avoid-compilation-of-an-uncalled-function/100058)

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**Author:** [@user664303](https://discourse.julialang.org/u/user664303)\
**Replies:** 2\
**Last updated:** [June 8, 2023, 8:54pm UTC](https://discourse.julialang.org/t/how-to-avoid-compilation-of-an-uncalled-function/100058 "2023-06-08T20:54:55Z")

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I have some code that generates a lot of function calls within different code branches. Each function call generates a different function instance. All these function instances are getting precompiled when my module is p…

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## [Function call dependency tracking in Python / how to do it in Julia](https://discourse.julialang.org/t/function-call-dependency-tracking-in-python-how-to-do-it-in-julia/100064)

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**Author:** [@Krastanov](https://discourse.julialang.org/u/Krastanov)\
**Replies:** 2\
**Last updated:** [June 8, 2023, 8:45pm UTC](https://discourse.julialang.org/t/function-call-dependency-tracking-in-python-how-to-do-it-in-julia/100064 "2023-06-08T20:45:34Z")

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I found this post from a Python friend of mine very interesting, especially in the context of comparing Python and Julia introspection and metaprogramming tools. He works through what is necessary for function-level depe…

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## [\[Call for participation\] 2nd Julia & Optimization Days, October 4-6, Paris (France)](https://discourse.julialang.org/t/call-for-participation-2nd-julia-optimization-days-october-4-6-paris-france/99872)

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**Author:** [@frapac](https://discourse.julialang.org/u/frapac)\
**Replies:** 2\
**Last updated:** [June 8, 2023, 8:34pm UTC](https://discourse.julialang.org/t/call-for-participation-2nd-julia-optimization-days-october-4-6-paris-france/99872 "2023-06-08T20:34:33Z")

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We are organizing a second edition of the Julia & Optimization days in Paris, taking place on October 4-6 2023 at Inria Paris, France. The workshop is open to anyone interested in applications of Julia in optimization a…

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## [Implementing the Wedge Product](https://discourse.julialang.org/t/implementing-the-wedge-product/17824)

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**Author:** [@DrPapa](https://discourse.julialang.org/u/DrPapa)\
**Replies:** 10\
**Last updated:** [June 8, 2023, 7:57pm UTC](https://discourse.julialang.org/t/implementing-the-wedge-product/17824 "2023-06-08T19:57:34Z")

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First off, does anybody know of an existing implementation of the wedge product in Julia? I performed a pretty expensive search and came up empty. For my application I need to compute \\wedge\_{i=1}^{n-1}\\boldsymbol{v}\_i…

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## [Pretty Table does not display in Documenter.jl](https://discourse.julialang.org/t/pretty-table-does-not-display-in-documenter-jl/100065)

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**Author:** [@Christopher\_Fisher](https://discourse.julialang.org/u/Christopher_Fisher)\
**Replies:** 6\
**Last updated:** [June 8, 2023, 7:53pm UTC](https://discourse.julialang.org/t/pretty-table-does-not-display-in-documenter-jl/100065 "2023-06-08T19:53:37Z")

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I use PrettyTables to format the printing of structs. It works in the REPL, but not in my documentation. The problem occurs in the subsection called create model object. I was wondering if anyone might now why its not w…

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## [Entity resolution/duplicate data in Julia](https://discourse.julialang.org/t/entity-resolution-duplicate-data-in-julia/33860)

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**Author:** [@mthelm85](https://discourse.julialang.org/u/mthelm85)\
**Replies:** 10\
**Last updated:** [June 8, 2023, 6:42pm UTC](https://discourse.julialang.org/t/entity-resolution-duplicate-data-in-julia/33860 "2023-06-08T18:42:31Z")

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I think it would be a good idea to start brainstorming a framework for doing entity resolution across datasets in Julia. Please see this post for more info on what entity resolution is, and the Python package dedupe that…

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## [Recommendation for animated 3D diagram](https://discourse.julialang.org/t/recommendation-for-animated-3d-diagram/99903)

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**Author:** [@goerz](https://discourse.julialang.org/u/goerz)\
**Replies:** 11\
**Last updated:** [June 8, 2023, 6:29pm UTC](https://discourse.julialang.org/t/recommendation-for-animated-3d-diagram/99903 "2023-06-08T18:29:50Z")

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I’m contemplating trying to make an animation based on the following figure: In the animation, I’d like to have the two red cups (and the blue balls contained in them) rotate independently around the circle, with a p…

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## [From CSV to Circular Array](https://discourse.julialang.org/t/from-csv-to-circular-array/100051)

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**Author:** [@greivin](https://discourse.julialang.org/u/greivin)\
**Replies:** 1\
**Last updated:** [June 8, 2023, 5:52pm UTC](https://discourse.julialang.org/t/from-csv-to-circular-array/100051 "2023-06-08T17:52:20Z")

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I’m storing matrices as CSV files that are meant to be read as circular arrays. When I creat a scrip to analysis the data I use CSV.red(..., DataFrame(...)) to read this files and the Matrix() to be analyze the data. H…

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## [Seemingly unnecessary Precompilation with Julia 1.9 in a Docker container](https://discourse.julialang.org/t/seemingly-unnecessary-precompilation-with-julia-1-9-in-a-docker-container/99892)

<div class="topic-metadata">

**Author:** [@xor0110](https://discourse.julialang.org/u/xor0110)\
**Replies:** 16\
**Last updated:** [June 8, 2023, 4:28pm UTC](https://discourse.julialang.org/t/seemingly-unnecessary-precompilation-with-julia-1-9-in-a-docker-container/99892 "2023-06-08T16:28:30Z")

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I have a Julia web server running within a Docker container. Everything used to run fine with Julia 1.8.3. I’m trying to upgrade to Julia 1.9, and now it seems the server takes too much time to start when I deploy it. It…

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## [Continuing previous chain in turing](https://discourse.julialang.org/t/continuing-previous-chain-in-turing/100054)

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**Author:** [@Sahil\_Khan](https://discourse.julialang.org/u/Sahil_Khan)\
**Replies:** 0\
**Last updated:** [June 8, 2023, 2:10pm UTC](https://discourse.julialang.org/t/continuing-previous-chain-in-turing/100054 "2023-06-08T14:10:15Z")

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If I do 5000 iteration in Turing for my model, let’s say with 3 chains in parallel. How to use those chains and began next 5000 iteration that uses end points of the previous chains.

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## [How to Call Function to Create Animation in GLMakie](https://discourse.julialang.org/t/how-to-call-function-to-create-animation-in-glmakie/99938)

<div class="topic-metadata">

**Author:** [@Freya\_the\_Goddess](https://discourse.julialang.org/u/Freya_the_Goddess)\
**Replies:** 4\
**Last updated:** [June 7, 2023, 10:19am UTC](https://discourse.julialang.org/t/how-to-call-function-to-create-animation-in-glmakie/99938 "2023-06-07T10:19:27Z")

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Hi all, I have a question, I don’t know how to call function so it can create the animation, I get the code here: this is the code: using GLMakie Base.@kwdef mutable struct Torus R::Float64 = 2 r::Float64 =…

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## [Use CPLEX solver in JuMP](https://discourse.julialang.org/t/use-cplex-solver-in-jump/100048)

<div class="topic-metadata">

**Author:** [@R0033h](https://discourse.julialang.org/u/R0033h)\
**Replies:** 1\
**Last updated:** [June 8, 2023, 1:02pm UTC](https://discourse.julialang.org/t/use-cplex-solver-in-jump/100048 "2023-06-08T13:02:34Z")

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I am a new learner to Julia and I would like to know how can create subproblem. I tried many ways but all of them not correct. the problem is ( we assumed: there are 400 students and 4 schools each school have 100 stud…

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## [Why isn't the debug logging triggered when \`JULIA\_DEBUG\` is being set to a Main submodule?](https://discourse.julialang.org/t/why-isnt-the-debug-logging-triggered-when-julia-debug-is-being-set-to-a-main-submodule/100050)

<div class="topic-metadata">

**Author:** [@jishnub](https://discourse.julialang.org/u/jishnub)\
**Replies:** 0\
**Last updated:** [June 8, 2023, 12:18pm UTC](https://discourse.julialang.org/t/why-isnt-the-debug-logging-triggered-when-julia-debug-is-being-set-to-a-main-submodule/100050 "2023-06-08T12:18:01Z")

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julia\> module Temp function f() @debug "in here" return end end Main.Temp julia\> ENV\["JULIA\_DEBUG"\]=Main.Temp Main.Temp julia\> Temp.f() julia\> ENV\["JULIA\_DEBU…

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## [Where to report error](https://discourse.julialang.org/t/where-to-report-error/100042)

<div class="topic-metadata">

**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 2\
**Last updated:** [June 8, 2023, 12:14pm UTC](https://discourse.julialang.org/t/where-to-report-error/100042 "2023-06-08T12:14:12Z")

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During precompilation I see this error: ┌ Warning: Module FileIOExt with build ID ffffffff-ffff-ffff-0000-02c424450fe9 is missing from the cache. │ This may mean FileIOExt \[f5f51d8f-5827-5d2e-939b-192fcd6ec70c\] does not…

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## [Domain ERROR issue in differential equation system](https://discourse.julialang.org/t/domain-error-issue-in-differential-equation-system/99726)

<div class="topic-metadata">

**Author:** [@Sahil\_Khan](https://discourse.julialang.org/u/Sahil_Khan)\
**Replies:** 21\
**Last updated:** [June 8, 2023, 11:25am UTC](https://discourse.julialang.org/t/domain-error-issue-in-differential-equation-system/99726 "2023-06-08T11:25:02Z")

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I have a model where in equation I have something like A^n where A is a state and n is a parameter. Now the issue is when I know that initial state values and parameters are positive I should not get a domain error. Only…

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## [VSCode server weirdly slow in SSH](https://discourse.julialang.org/t/vscode-server-weirdly-slow-in-ssh/99960)

<div class="topic-metadata">

**Author:** [@wujinq](https://discourse.julialang.org/u/wujinq)\
**Replies:** 1\
**Last updated:** [June 8, 2023, 2:35am UTC](https://discourse.julialang.org/t/vscode-server-weirdly-slow-in-ssh/99960 "2023-06-08T02:35:04Z")

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I’m currently using the vscode Julia extension when working remotely on Frontera, a supercomputer (CentOS 7). Recently the extension becomes weirdly slow; when I try to execute a code block, it takes about 1 minute to st…

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## [New Language](https://discourse.julialang.org/t/new-language/100031)

<div class="topic-metadata">

**Author:** [@SergeantMike67](https://discourse.julialang.org/u/SergeantMike67)\
**Replies:** 1\
**Last updated:** [June 8, 2023, 2:23am UTC](https://discourse.julialang.org/t/new-language/100031 "2023-06-08T02:23:45Z")

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Has anyone here heard about Mojo? What I read sounded like someone recreated Julia using Python as a base. They are even touting it as easy AI. There is even an article saying it’s the biggest programming advance in dec…

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## [Another world age problem](https://discourse.julialang.org/t/another-world-age-problem/100029)

<div class="topic-metadata">

**Author:** [@user664303](https://discourse.julialang.org/u/user664303)\
**Replies:** 6\
**Last updated:** [June 8, 2023, 1:40am UTC](https://discourse.julialang.org/t/another-world-age-problem/100029 "2023-06-08T01:40:24Z")

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I’m suffering from a world age problem, that Base.invokelatest does not solve. A MWE demonstrating the problem is as follows: module MyModule export myfun myfun(::Type{Int}) = 3 @generated function genfun(::Type{T}) wh…

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## [Julia v1.9.1 has been released](https://discourse.julialang.org/t/julia-v1-9-1-has-been-released/100030)

<div class="topic-metadata">

**Author:** [@ararslan](https://discourse.julialang.org/u/ararslan)\
**Replies:** 0\
**Last updated:** [June 8, 2023, 1:20am UTC](https://discourse.julialang.org/t/julia-v1-9-1-has-been-released/100030 "2023-06-08T01:20:20Z")

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Julia version 1.9.1, the first patch release in the 1.9 series of releases, is now available. Binaries are available at https://julialang.org/downloads/ for the following platforms, listed here by support tier: Tier 1:…

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