# Specific Domains

**URL:** https://discourse.julialang.org/c/domain/10.md?no_subcategories=false

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

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## [About the Specific Domains category](https://discourse.julialang.org/t/about-the-specific-domains-category/86)

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**Author:** [@StefanKarpinski](https://discourse.julialang.org/u/StefanKarpinski)\
**Replies:** 5\
**Last updated:** [November 8, 2016, 10:43pm UTC](https://discourse.julialang.org/t/about-the-specific-domains-category/86 "2016-11-08T22:43:04Z")

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Discussion of Julia in various specialized subject domains that have a dedicated community. Don’t see your domain? Fear not, post your topic in general usage.

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## [Stepper motor model](https://discourse.julialang.org/t/stepper-motor-model/142794)

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**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 0\
**Last updated:** [November 6, 2026, 5:18pm UTC](https://discourse.julialang.org/t/stepper-motor-model/142794 "2026-11-06T17:18:40Z")

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Is there a stepper motor model in Dyad? AI says there isn’t, but it could be built. Perhaps I should rephrase my question: Did anyone build a stepper motor model in Dyad?

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## [How to compose discrete-time static and dynamic models for systems simulation similar to Simulink?](https://discourse.julialang.org/t/how-to-compose-discrete-time-static-and-dynamic-models-for-systems-simulation-similar-to-simulink/74858)

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**Author:** [@JanKap](https://discourse.julialang.org/u/JanKap)\
**Replies:** 10\
**Last updated:** [November 6, 2026, 4:45pm UTC](https://discourse.julialang.org/t/how-to-compose-discrete-time-static-and-dynamic-models-for-systems-simulation-similar-to-simulink/74858 "2026-11-06T16:45:48Z")

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Hi all, I’m searching for a Simulink replacement. The main purpose is to have a simplified system simulation for quick prototyping. The domain is mechanical/electrical Usually, I have 4 kinds of models/subsystems Sen…

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## [Can Julia land on the Moon?](https://discourse.julialang.org/t/can-julia-land-on-the-moon/142724)

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**Author:** [@fracpl](https://discourse.julialang.org/u/fracpl)\
**Replies:** 11\
**Last updated:** [November 6, 2026, 3:50pm UTC](https://discourse.julialang.org/t/can-julia-land-on-the-moon/142724 "2026-11-06T15:50:14Z")

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In recent years, we’ve been working on developing a simulation framework tailored to our needs at the European Space Agency, in the context of the Argonaut lunar lander programme. The result is ATLAS (Argonaut Tools for…

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## [Difference between OrdinaryDiffEq.jl and DifferentialEquations.jl](https://discourse.julialang.org/t/difference-between-ordinarydiffeq-jl-and-differentialequations-jl/111133)

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**Author:** [@Sushrut\_Deshpande](https://discourse.julialang.org/u/Sushrut_Deshpande)\
**Replies:** 3\
**Last updated:** [November 6, 2026, 12:22am UTC](https://discourse.julialang.org/t/difference-between-ordinarydiffeq-jl-and-differentialequations-jl/111133 "2026-11-06T00:22:13Z")

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Hello, I have a basic question: I want to know the difference between OrdinaryDiffEq.jl and DifferentialEquations.jl. I know that OrdinaryDiffEq.jl is a subset of DifferentialEquations.jl but on the user interface, t…

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## [Is there any MIP solver you would recommend?](https://discourse.julialang.org/t/is-there-any-mip-solver-you-would-recommend/142786)

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**Author:** [@zchenytt](https://discourse.julialang.org/u/zchenytt)\
**Replies:** 2\
**Last updated:** [November 5, 2026, 11:58pm UTC](https://discourse.julialang.org/t/is-there-any-mip-solver-you-would-recommend/142786 "2026-11-05T23:58:38Z")

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(Feel free to move this topic to offtopic, if desired) I feel a bit sorry for my situation: I’d been using JuMP+Gurobi for more than 3 years. I thought it should be Gurobi10, at which time users need to set the nonconve…

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## [My nuclearcraft (Minecraft mod optimization minigame) optimization is now much faster!](https://discourse.julialang.org/t/my-nuclearcraft-minecraft-mod-optimization-minigame-optimization-is-now-much-faster/142773)

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**Author:** [@Tarny\_GG\_Channie](https://discourse.julialang.org/u/Tarny_GG_Channie)\
**Replies:** 0\
**Last updated:** [November 5, 2026, 5:29am UTC](https://discourse.julialang.org/t/my-nuclearcraft-minecraft-mod-optimization-minigame-optimization-is-now-much-faster/142773 "2026-11-05T05:29:42Z")

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A few years ago, I made an optimizer for a fun minigame in Minecraft. Now, it is much more optimized. What changed: A nicer reformulation that works better under relaxation. Can now be more easily repaired. Added …

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## [Tinkering with values of variables in a solved JuMP model](https://discourse.julialang.org/t/tinkering-with-values-of-variables-in-a-solved-jump-model/140164)

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**Author:** [@araujoms](https://discourse.julialang.org/u/araujoms)\
**Replies:** 7\
**Last updated:** [October 31, 2026, 8:03am UTC](https://discourse.julialang.org/t/tinkering-with-values-of-variables-in-a-solved-jump-model/140164 "2026-10-31T08:03:33Z")

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I’d like to solve a JuMP model, use primal\_feasibility\_report to check which constraints are violated, tweak the variable values until the constraints are all strictly respected, and then compute the new objective value …

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## [rdiv!(A', svd(B))](https://discourse.julialang.org/t/rdiv-a-svd-b/140265)

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**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 2\
**Last updated:** [October 30, 2026, 2:24pm UTC](https://discourse.julialang.org/t/rdiv-a-svd-b/140265 "2026-10-30T14:24:06Z")

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Is it possible to rdiv! by an SVD factorization? As in using LinearAlgebra A = ones(3) B = randn(3, 3) Blu = lu!(copy(B)) rdiv!(A', Blu) # works Bsvd = svd!(copy(B)) rdiv!(A', Bsvd) # fails, no such method In other wor…

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## [\[Blog\] Replacing PyTorch with Julia and Reactant: One Year In](https://discourse.julialang.org/t/blog-replacing-pytorch-with-julia-and-reactant-one-year-in/140158)

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**Author:** [@csvance](https://discourse.julialang.org/u/csvance)\
**Replies:** 17\
**Last updated:** [October 28, 2026, 4:00pm UTC](https://discourse.julialang.org/t/blog-replacing-pytorch-with-julia-and-reactant-one-year-in/140158 "2026-10-28T16:00:02Z")

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Over the past year, Medical Metrics Inc. has been migrating our internal model training/serving stack to Julia and Reactant. This resulted in several open source projects building on top of Reactant, and I thought it wou…

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## [Looking for volunteers to improve pkg demos](https://discourse.julialang.org/t/looking-for-volunteers-to-improve-pkg-demos/140322)

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**Author:** [@henry2004y](https://discourse.julialang.org/u/henry2004y)\
**Replies:** 0\
**Last updated:** [October 28, 2026, 3:18pm UTC](https://discourse.julialang.org/t/looking-for-volunteers-to-improve-pkg-demos/140322 "2026-10-28T15:18:23Z")

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Hello there, I am looking for volunteers interested in plasma physics to check and improve our test particle tracing demos in TestParticle.jl. There are currently over 50 demos for you to check out. Feel free to open PR…

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## [\[ANN\] MachineLearningForecast.jl: forecasting with any MLJ regressor](https://discourse.julialang.org/t/ann-machinelearningforecast-jl-forecasting-with-any-mlj-regressor/139302)

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**Author:** [@Resul.Akay](https://discourse.julialang.org/u/Resul.Akay)\
**Replies:** 5\
**Last updated:** [October 27, 2026, 7:14pm UTC](https://discourse.julialang.org/t/ann-machinelearningforecast-jl-forecasting-with-any-mlj-regressor/139302 "2026-10-27T19:14:17Z")

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MachineLearningForecast.jl: Forecasting with any MLJ regressor I’m happy to share MachineLearningForecast.jl, a package for time-series forecasting that turns any MLJ Deterministic regressor into a forecaster. EvoTrees, …

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## [Silent release of UDEs with ModelingToolkit?](https://discourse.julialang.org/t/silent-release-of-udes-with-modelingtoolkit/140271)

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**Author:** [@MarcusGalea](https://discourse.julialang.org/u/MarcusGalea)\
**Replies:** 2\
**Last updated:** [October 26, 2026, 9:35pm UTC](https://discourse.julialang.org/t/silent-release-of-udes-with-modelingtoolkit/140271 "2026-10-26T21:35:26Z")

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I’ve seen several discussions about writing symbolic UDE models with ModelingToolkit, and I think it is fair to say it has been an anticipated feature for some years: UDEs & ModelingToolkit. Universal differential equa…

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## [\[ANN\] AsteroidPipeline.jl: open pipeline for asteroid search campaigns](https://discourse.julialang.org/t/ann-asteroidpipeline-jl-open-pipeline-for-asteroid-search-campaigns/140224)

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**Author:** [@Richard7987](https://discourse.julialang.org/u/Richard7987)\
**Replies:** 1\
**Last updated:** [October 26, 2026, 9:17am UTC](https://discourse.julialang.org/t/ann-asteroidpipeline-jl-open-pipeline-for-asteroid-search-campaigns/140224 "2026-10-26T09:17:07Z")

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Hi all, I’m an undergrad physics student in Mexico, and I’ve been working on AsteroidPipeline.jl, a Julia package for asteroid search campaigns. It’s MIT licensed and in the General registry, so Pkg.add("AsteroidPipelin…

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## [How to install Pytorch with cuda support through CondaPkg](https://discourse.julialang.org/t/how-to-install-pytorch-with-cuda-support-through-condapkg/135690)

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**Author:** [@Tomas\_Pevny](https://discourse.julialang.org/u/Tomas_Pevny)\
**Replies:** 9\
**Last updated:** [October 25, 2026, 10:36pm UTC](https://discourse.julialang.org/t/how-to-install-pytorch-with-cuda-support-through-condapkg/135690 "2026-10-25T22:36:35Z")

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Hi All, I would like to ask, if anyone knows how to install pytorch with cuda support through CondaPkg. It has to happen that I need to call some language models and I have opted to use transformers from HuggingFace, as…

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## [\[ANN\] Overburden.jl - coverage aware read subsampling](https://discourse.julialang.org/t/ann-overburden-jl-coverage-aware-read-subsampling/140176)

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**Author:** [@jakobnissen](https://discourse.julialang.org/u/jakobnissen)\
**Replies:** 1\
**Last updated:** [October 23, 2026, 11:56am UTC](https://discourse.julialang.org/t/ann-overburden-jl-coverage-aware-read-subsampling/140176 "2026-10-23T11:56:38Z")

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Overburden.jl is a small CLI tool that does a narrow task: Given a set of reads mapped to a reference, sub-sample the reads to a smaller set that guarantees some minimal depth at all positions. This is useful if you hav…

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## [\[RFC / Call for Collaborators\] Multiscale Biophysical Simulation in Julia: Coupling Agents.jl with ODE Stock-Flow (SIMONE Engine)](https://discourse.julialang.org/t/rfc-call-for-collaborators-multiscale-biophysical-simulation-in-julia-coupling-agents-jl-with-ode-stock-flow-simone-engine/140143)

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**Author:** [@kyberlex](https://discourse.julialang.org/u/kyberlex)\
**Replies:** 0\
**Last updated:** [October 21, 2026, 11:14pm UTC](https://discourse.julialang.org/t/rfc-call-for-collaborators-multiscale-biophysical-simulation-in-julia-coupling-agents-jl-with-ode-stock-flow-simone-engine/140143 "2026-10-21T23:14:17Z")

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Hi everyone, As part of the open-source peer review for the Open Networked Earth (O.N.E.) civilizational framework (repository kyberlex/ONE on GitHub), we are seeking Julia modelers, complex systems researchers, and Co-…

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## [MTK HIL simulation and code generation](https://discourse.julialang.org/t/mtk-hil-simulation-and-code-generation/140124)

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**Author:** [@pepperoni](https://discourse.julialang.org/u/pepperoni)\
**Replies:** 2\
**Last updated:** [October 20, 2026, 5:50pm UTC](https://discourse.julialang.org/t/mtk-hil-simulation-and-code-generation/140124 "2026-10-20T17:50:58Z")

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Hello Julia community, I wanted to start by saying I really do appreciate Julia and that I don’t like the closed ecosystem of MATLAB/Simulink. However, I feel Simulink, with its real-time package and coders, is the king…

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## [AD in ill-conditioned z/√(s²+z²) without custom rules](https://discourse.julialang.org/t/ad-in-ill-conditioned-z-s-z-without-custom-rules/140047)

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**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 8\
**Last updated:** [October 19, 2026, 3:30pm UTC](https://discourse.julialang.org/t/ad-in-ill-conditioned-z-s-z-without-custom-rules/140047 "2026-10-19T15:30:26Z")

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I would like to implement a z/sqrt(s^2+z^2) that works for when z and s have wildly different magnitudes, but are both finite, also gives the correct result when AD’s via the most common frameworks. I would prefer to a…

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## [Preview: Potential XAM successor library](https://discourse.julialang.org/t/preview-potential-xam-successor-library/140079)

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**Author:** [@jakobnissen](https://discourse.julialang.org/u/jakobnissen)\
**Replies:** 1\
**Last updated:** [October 19, 2026, 2:10am UTC](https://discourse.julialang.org/t/preview-potential-xam-successor-library/140079 "2026-10-19T02:10:00Z")

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Hello, fellow Biojulians! I’m in the process of making a new library for reading SAM and BAM files. This post is intended to allow you to get a sneak peek, to inform stakeholders in the existing XAM.jl. Specifically, I …

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## [DRM Radio 📻 & Julia](https://discourse.julialang.org/t/drm-radio-julia/136346)

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**Author:** [@raman\_kumar](https://discourse.julialang.org/u/raman_kumar)\
**Replies:** 11\
**Last updated:** [October 17, 2026, 12:04pm UTC](https://discourse.julialang.org/t/drm-radio-julia/136346 "2026-10-17T12:04:08Z")

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I see that Digital Radio Mondiale is replacing analog radios in many countries. Can Julia be used in this DE9180 Demonstration and Prototyping Kit for the DRM1000 Broadcast Receiver Module | CMLMicro ? CMLMicro is using …

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## [Calligraphic LaTeX fonts in Makie](https://discourse.julialang.org/t/calligraphic-latex-fonts-in-makie/101209)

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**Author:** [@Pablo\_Marchant](https://discourse.julialang.org/u/Pablo_Marchant)\
**Replies:** 11\
**Last updated:** [October 16, 2026, 4:33pm UTC](https://discourse.julialang.org/t/calligraphic-latex-fonts-in-makie/101209 "2026-10-16T16:33:32Z")

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Hi all, I’ve run into a small problem regarding mismatch of LaTeX fonts between Makie and the LaTeX documents where I am placing such figures. This is really a problem with the calligraphic fonts that are used in math m…

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## [2D Causal convolution PixelCNN fail to learn](https://discourse.julialang.org/t/2d-causal-convolution-pixelcnn-fail-to-learn/140043)

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**Author:** [@lf28](https://discourse.julialang.org/u/lf28)\
**Replies:** 1\
**Last updated:** [October 15, 2026, 9:14pm UTC](https://discourse.julialang.org/t/2d-causal-convolution-pixelcnn-fail-to-learn/140043 "2026-10-15T21:14:44Z")

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Hi all, I am tying to implement a simple 2d causal convolution based PixelCNN. My PyTorch implementation easily reach a sensible per-sample loss around 90+/- but my Julia’s Flux based solution stuck at 200+ loss per sam…

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## [Interaction of ModellingToolkit with C code](https://discourse.julialang.org/t/interaction-of-modellingtoolkit-with-c-code/139982)

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**Author:** [@abhi7k](https://discourse.julialang.org/u/abhi7k)\
**Replies:** 4\
**Last updated:** [October 13, 2026, 4:37pm UTC](https://discourse.julialang.org/t/interaction-of-modellingtoolkit-with-c-code/139982 "2026-10-13T16:37:34Z")

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Hi All, I am trying to model a converter using ModellingToolkit whose control lies in a c file. The control is being called at a regular interval using ccall and periodic callback. It seems impossible to integrate the va…

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## [Does anyone has experience / can refer to a "general", "data-driven" PARTIAL equilibrium model?](https://discourse.julialang.org/t/does-anyone-has-experience-can-refer-to-a-general-data-driven-partial-equilibrium-model/89567)

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**Author:** [@sylvaticus](https://discourse.julialang.org/u/sylvaticus)\
**Replies:** 1\
**Last updated:** [October 12, 2026, 7:03pm UTC](https://discourse.julialang.org/t/does-anyone-has-experience-can-refer-to-a-general-data-driven-partial-equilibrium-model/89567 "2026-10-12T19:03:28Z")

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Hello, I am the maintainer of FFSM (https://ffsm-project.org), a bio-economic model that deals with forest biological dynamics, forest management and the markets of timber products. We are currently exploring the possib…

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## [Does CairoMakie support mixed Latin and foreign characters?](https://discourse.julialang.org/t/does-cairomakie-support-mixed-latin-and-foreign-characters/139959)

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**Author:** [@zchenytt](https://discourse.julialang.org/u/zchenytt)\
**Replies:** 1\
**Last updated:** [October 12, 2026, 1:14am UTC](https://discourse.julialang.org/t/does-cairomakie-support-mixed-latin-and-foreign-characters/139959 "2026-10-12T01:14:18Z")

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Hello, I’m currently writing my PhD thesis (in Chinese). According to what they said, labels in figures should be in “Chinese in SimSun + English in Times New Roman” style. But I currently can only make it to be “Both…

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## [Feedback on MCP support for Oxygen.jl](https://discourse.julialang.org/t/feedback-on-mcp-support-for-oxygen-jl/139869)

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**Author:** [@ndortega](https://discourse.julialang.org/u/ndortega)\
**Replies:** 4\
**Last updated:** [October 8, 2026, 4:39pm UTC](https://discourse.julialang.org/t/feedback-on-mcp-support-for-oxygen-jl/139869 "2026-10-08T16:39:29Z")

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Hello Everyone, Oxygen.jl is almost ready to ship with built-in support for the MCP protocol, and I wanted to preview the new syntax and collect feedback on the API. This update includes macros & functions to register t…

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## [Padé approximants](https://discourse.julialang.org/t/pade-approximants/139890)

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**Author:** [@langestefan](https://discourse.julialang.org/u/langestefan)\
**Replies:** 4\
**Last updated:** [October 8, 2026, 8:50am UTC](https://discourse.julialang.org/t/pade-approximants/139890 "2026-10-08T08:50:56Z")

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I am looking for a general package to compute Padé approximants. In my use case these show up as part of the holomorphic load flow method (see Holomorphic Embedding Load-flow method - Wikipedia). An implementation of HE…

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## [Lanyon AI: formal verification for scientific computing](https://discourse.julialang.org/t/lanyon-ai-formal-verification-for-scientific-computing/139848)

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**Author:** [@berceanu](https://discourse.julialang.org/u/berceanu)\
**Replies:** 3\
**Last updated:** [October 7, 2026, 5:53am UTC](https://discourse.julialang.org/t/lanyon-ai-formal-verification-for-scientific-computing/139848 "2026-10-07T05:53:54Z")

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Lanyon AI may interest people here. Their approach uses an LLM to propose a formal specification in a domain-specific language, then generates code and proofs together through symbolic methods. Their research notes incl…

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## [ANN: JuMP-dev 2027](https://discourse.julialang.org/t/ann-jump-dev-2027/139867)

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**Author:** [@odow](https://discourse.julialang.org/u/odow)\
**Replies:** 0\
**Last updated:** [October 6, 2026, 11:00pm UTC](https://discourse.julialang.org/t/ann-jump-dev-2027/139867 "2026-10-06T23:00:21Z")

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Dear all, We’ve got exciting news for the world of open source mathematical optimization! We’re pleased to announce that JuMP-dev 2027 will be co-located with the CVXPY Workshop 2027 and the HiGHS Workshop 2027. The wo…

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