# Specific Domains

**URL:** https://discourse.julialang.org/c/domain/10.md?no_subcategories=false&page=13

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

**Page:** 14

---

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

<div class="topic-metadata">

**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")

</div>

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…

---

## [\[Dyad\] “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)

<div class="topic-metadata">

**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")

</div>

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…

---

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

<div class="topic-metadata">

**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")

</div>

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…

---

## [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)

<div class="topic-metadata">

**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")

</div>

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…

---

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

<div class="topic-metadata">

**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")

</div>

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 …

---

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

<div class="topic-metadata">

**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")

</div>

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 …

---

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

<div class="topic-metadata">

**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")

</div>

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…

---

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

<div class="topic-metadata">

**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")

</div>

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…

---

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

<div class="topic-metadata">

**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")

</div>

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 …

---

## [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)

<div class="topic-metadata">

**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")

</div>

@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…

---

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

<div class="topic-metadata">

**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")

</div>

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. …

---

## [GMT.jl : Coloring lakes, keeping oceans bathymetry](https://discourse.julialang.org/t/gmt-jl-coloring-lakes-keeping-oceans-bathymetry/135163)

<div class="topic-metadata">

**Author:** [@Balinus](https://discourse.julialang.org/u/Balinus)\
**Replies:** 6\
**Last updated:** [January 22, 2026, 2:06pm UTC](https://discourse.julialang.org/t/gmt-jl-coloring-lakes-keeping-oceans-bathymetry/135163 "2026-01-22T14:06:22Z")

</div>

Hello! I’m trying to plot some points over a map. I would like to keep the default topography/bathymetry visuals, but the lakes are “green”, being over 0m at sea level (my guess). Here’s my current code. I tried to use t…

---

## [Franklin.jl with Academic template blog markdown rendering & title problem](https://discourse.julialang.org/t/franklin-jl-with-academic-template-blog-markdown-rendering-title-problem/135202)

<div class="topic-metadata">

**Author:** [@shrdlu](https://discourse.julialang.org/u/shrdlu)\
**Replies:** 0\
**Last updated:** [January 22, 2026, 11:48am UTC](https://discourse.julialang.org/t/franklin-jl-with-academic-template-blog-markdown-rendering-title-problem/135202 "2026-01-22T11:48:09Z")

</div>

I’m testing out a local static page generated by Franklin.jl using the academic template (Your Name) and am running into a number of issues. First one is title extraction for blog posts - SSG process can detect and link…

---

## [How to retain toggle-visibility by clicking on legend after emptying axis?](https://discourse.julialang.org/t/how-to-retain-toggle-visibility-by-clicking-on-legend-after-emptying-axis/135175)

<div class="topic-metadata">

**Author:** [@RoyW](https://discourse.julialang.org/u/RoyW)\
**Replies:** 2\
**Last updated:** [January 21, 2026, 5:02pm UTC](https://discourse.julialang.org/t/how-to-retain-toggle-visibility-by-clicking-on-legend-after-emptying-axis/135175 "2026-01-21T17:02:12Z")

</div>

The following code loads a different pair of time-series into the figure whenever the slider is moved. The code below generates three pairs, so the slider has 3 possible values. When the figure is first created right af…

---

## [MTK -- \`instream\` problem](https://discourse.julialang.org/t/mtk-instream-problem/135171)

<div class="topic-metadata">

**Author:** [@BLI](https://discourse.julialang.org/u/BLI)\
**Replies:** 1\
**Last updated:** [January 21, 2026, 3:08pm UTC](https://discourse.julialang.org/t/mtk-instream-problem/135171 "2026-01-21T15:08:25Z")

</div>

I’m trying to understand ModelingToolkit (MTK) connectors, components, and now Stream variables in connector. As an exercise for myself, I am looking at 2 substance, ideal solution liquid tank systems: I consider 3 …

---

## [Makie.jl - Subplots + hover information](https://discourse.julialang.org/t/makie-jl-subplots-hover-information/133066)

<div class="topic-metadata">

**Author:** [@Episki](https://discourse.julialang.org/u/Episki)\
**Replies:** 2\
**Last updated:** [January 21, 2026, 11:40am UTC](https://discourse.julialang.org/t/makie-jl-subplots-hover-information/133066 "2026-01-21T11:40:18Z")

</div>

Hi all. I have a general question regarding Makie.jl, subplots and hover information. I would like to recreate a plot with some subplots in which the hover information of ALL the data-series is shown. There would be 2 w…

---

## [Spiking Neural Model](https://discourse.julialang.org/t/spiking-neural-model/135029)

<div class="topic-metadata">

**Author:** [@tbzcn](https://discourse.julialang.org/u/tbzcn)\
**Replies:** 1\
**Last updated:** [January 21, 2026, 5:01am UTC](https://discourse.julialang.org/t/spiking-neural-model/135029 "2026-01-21T05:01:49Z")

</div>

Hi, I am new to Julia and my aim is to create a network of spiking neurons. I use simple leaky integrate and fire (LIF) model for now with ODEProblem solver. Whenever the neuron (u) reaches a threshold value, it should …

---

## [Solving system of spatial Ordinary Differential Equations](https://discourse.julialang.org/t/solving-system-of-spatial-ordinary-differential-equations/135007)

<div class="topic-metadata">

**Author:** [@federicoangioni](https://discourse.julialang.org/u/federicoangioni)\
**Replies:** 1\
**Last updated:** [January 21, 2026, 4:26am UTC](https://discourse.julialang.org/t/solving-system-of-spatial-ordinary-differential-equations/135007 "2026-01-21T04:26:33Z")

</div>

Hello all, I am Federico, and an undergraduate student approaching Julia for the first time as a part of my studies in computational science. I am currently struggling with solving a system of coupled Ordinary Different…

---

## [Simple DAE does not solve](https://discourse.julialang.org/t/simple-dae-does-not-solve/135148)

<div class="topic-metadata">

**Author:** [@ohmsweetohm1](https://discourse.julialang.org/u/ohmsweetohm1)\
**Replies:** 4\
**Last updated:** [January 19, 2026, 11:50pm UTC](https://discourse.julialang.org/t/simple-dae-does-not-solve/135148 "2026-01-19T23:50:15Z")

</div>

I tried the very most basic forced DAE I could think of and implemented an RC-circuit: using Sundials using OrdinaryDiffEq using Test u(t) = t \< 0.5 ? 0.0 : 1.0 p = (R=1.0, C=1.0) righthandside = (out, dx, x, p, t) -\> …

---

## [Makie: best practice to align Labels to left margin](https://discourse.julialang.org/t/makie-best-practice-to-align-labels-to-left-margin/135131)

<div class="topic-metadata">

**Author:** [@VictorSeven](https://discourse.julialang.org/u/VictorSeven)\
**Replies:** 3\
**Last updated:** [January 19, 2026, 1:53pm UTC](https://discourse.julialang.org/t/makie-best-practice-to-align-labels-to-left-margin/135131 "2026-01-19T13:53:23Z")

</div>

I have been fighting with a visualization for the whole day and I cannot make it work the way I’d like to. I am trying to do a simple infographic for social media in order to improve my dataviz skills with Makie. This is…

---

## [ANN: JuMP-dev 2026](https://discourse.julialang.org/t/ann-jump-dev-2026/133524)

<div class="topic-metadata">

**Author:** [@odow](https://discourse.julialang.org/u/odow)\
**Replies:** 2\
**Last updated:** [January 19, 2026, 2:42am UTC](https://discourse.julialang.org/t/ann-jump-dev-2026/133524 "2026-01-19T02:42:03Z")

</div>

Dear all, We are pleased to announce that JuMP-dev 2026 will take place in Edinburgh, Scotland on May 31 and June 1st (just before SIAM OP26). More details here: JuMP-dev 2026 | JuMP Cheers, Oscar

---

## [Dependencies of Makie.jl including SpecialFunctions, Distributions, and StatsFuns fail to install](https://discourse.julialang.org/t/dependencies-of-makie-jl-including-specialfunctions-distributions-and-statsfuns-fail-to-install/134995)

<div class="topic-metadata">

**Author:** [@ProvocaTeach](https://discourse.julialang.org/u/ProvocaTeach)\
**Replies:** 2\
**Last updated:** [January 18, 2026, 5:54pm UTC](https://discourse.julialang.org/t/dependencies-of-makie-jl-including-specialfunctions-distributions-and-statsfuns-fail-to-install/134995 "2026-01-18T17:54:01Z")

</div>

I tried to install Makie and multiple dependencies failed to install, including SpecialFunctions, Distributions, and StatsFuns. I put the full output and error logs in this GitLab snippet: Makie attempted install log 20…

---

## [Input Convex Neural Network is not Convex at Origin in Lux.jl](https://discourse.julialang.org/t/input-convex-neural-network-is-not-convex-at-origin-in-lux-jl/133565)

<div class="topic-metadata">

**Author:** [@Lizuo\_Liu](https://discourse.julialang.org/u/Lizuo_Liu)\
**Replies:** 2\
**Last updated:** [January 18, 2026, 5:18pm UTC](https://discourse.julialang.org/t/input-convex-neural-network-is-not-convex-at-origin-in-lux-jl/133565 "2026-01-18T17:18:45Z")

</div>

Hi, I utilize Lux.jl implemented the input convex neural network, but it doesn’t show positive eigenvalues at origin. Below is the working example. Any comment is appreciated. using Lux using Random using LinearAlgebra…

---

## [Plot density map of points in GeoMakie](https://discourse.julialang.org/t/plot-density-map-of-points-in-geomakie/135107)

<div class="topic-metadata">

**Author:** [@mihalybaci](https://discourse.julialang.org/u/mihalybaci)\
**Replies:** 4\
**Last updated:** [January 18, 2026, 2:01am UTC](https://discourse.julialang.org/t/plot-density-map-of-points-in-geomakie/135107 "2026-01-18T02:01:09Z")

</div>

I am trying to figure out how to plot a heat map / density map of geolocations (lon, lat) and overlay it on a geographical map. I think I am nearly there using GeoMakie.jl, but I just can’t get the final step. I am able …

---

## [Possible to geocode from file using GMT?](https://discourse.julialang.org/t/possible-to-geocode-from-file-using-gmt/135105)

<div class="topic-metadata">

**Author:** [@mihalybaci](https://discourse.julialang.org/u/mihalybaci)\
**Replies:** 5\
**Last updated:** [January 18, 2026, 1:51am UTC](https://discourse.julialang.org/t/possible-to-geocode-from-file-using-gmt/135105 "2026-01-18T01:51:08Z")

</div>

I am looking to gecode some address information (convert addresses to lon/lat pairs). I found the geodcode function in GMT.jl, and it looks simple enough. But, is it possible to avoid sending the addresses to a web servi…

---

## [Introduction to Statistical Learning for Julia (ISLJ) Labs for the Hastie Tibshirani book](https://discourse.julialang.org/t/introduction-to-statistical-learning-for-julia-islj-labs-for-the-hastie-tibshirani-book/135113)

<div class="topic-metadata">

**Author:** [@compleat](https://discourse.julialang.org/u/compleat)\
**Replies:** 1\
**Last updated:** [January 17, 2026, 8:00pm UTC](https://discourse.julialang.org/t/introduction-to-statistical-learning-for-julia-islj-labs-for-the-hastie-tibshirani-book/135113 "2026-01-17T20:00:34Z")

</div>

GitHub - compleathorseplayer/ISLR-labs-in-Julia: Julia translations of ISLR2 labs (Introduction to Statistical Learning, 2nd Edition) Complete translation of the Labs in the famous ISLR book by Hastie, Tibshirani, et al …

---

## [Makie: Calculation on Observables?](https://discourse.julialang.org/t/makie-calculation-on-observables/135099)

<div class="topic-metadata">

**Author:** [@ryofurue](https://discourse.julialang.org/u/ryofurue)\
**Replies:** 2\
**Last updated:** [January 17, 2026, 6:41am UTC](https://discourse.julialang.org/t/makie-calculation-on-observables/135099 "2026-01-17T06:41:37Z")

</div>

I have a relatively complicated function to produce values and a relatively complicated function to plot the values. The combination already works to produce a still image. Now, I want to produce an animation changing a…

---

## [In MTK, how can I change a system's parameter's default values?](https://discourse.julialang.org/t/in-mtk-how-can-i-change-a-systems-parameters-default-values/135092)

<div class="topic-metadata">

**Author:** [@cstjean](https://discourse.julialang.org/u/cstjean)\
**Replies:** 2\
**Last updated:** [January 16, 2026, 3:59pm UTC](https://discourse.julialang.org/t/in-mtk-how-can-i-change-a-systems-parameters-default-values/135092 "2026-01-16T15:59:14Z")

</div>

I have a sys::System, and I’d like to build a sys2 that is like sys, but sys2.some\_param’s default is 20. Right now I use """ \`\`jldoctest julia\> @named sys = MySystem(); julia\> param = sys.some\_param; julia\> initial\_c…

---

## [Some (new ?) thoughts about WGLMakie in Pluto](https://discourse.julialang.org/t/some-new-thoughts-about-wglmakie-in-pluto/135096)

<div class="topic-metadata">

**Author:** [@jucheval](https://discourse.julialang.org/u/jucheval)\
**Replies:** 0\
**Last updated:** [January 16, 2026, 1:45pm UTC](https://discourse.julialang.org/t/some-new-thoughts-about-wglmakie-in-pluto/135096 "2026-01-16T13:45:41Z")

</div>

Hi everyone! I recently used WGLMakie animations in a Pluto notebook for my Habilitation defense. I thought it was really cool so I want to highlight this possibility by making a Pluto “featured notebook”. Here is a com…

---

## [Iterating over integer simplex](https://discourse.julialang.org/t/iterating-over-integer-simplex/135060)

<div class="topic-metadata">

**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 14\
**Last updated:** [January 16, 2026, 12:29pm UTC](https://discourse.julialang.org/t/iterating-over-integer-simplex/135060 "2026-01-16T12:29:59Z")

</div>

I need to iterate over all K-tuples of nonnegative Ints that sum to N. Eg if K is 3 and N==3, (0,0,3) (0,1,2) (0,2,1) (0,3,0) (1,0,2) (1,1,1) (1,2,0) (2,0,1) (2,1,0) (3,0,0) Ordering does not matter, just full travers…

[Previous page](https://discourse.julialang.org/c/domain/10.md?no_subcategories=false&page=12)

[Next page](https://discourse.julialang.org/c/domain/10.md?no_subcategories=false&page=14)