franco_vazza, 5 months ago to Astro

#SimulatedUniverses
a new visualisation experiment to show how a full simulated volume (100 Megaparsec cubic) gets progressively filled by cosmic web structures if I keep adding a layer after another along the line of sight - here using 64 layers of 1.56 Megaparsec each.

This is baryonic matter.

the visualisation is done using #Julialang in parallel using 16 cores on my MAC - the input simulation has 1024^3 cells.

#astrodon #astronomy

video/mp4

gregorni, 4 months ago to Julia

Any Nim or Julia people out there that also do app development? Can I get some ✋?

#Nim #Nimlang #Julia #JuliaLang #programming #appDevelopment #ProgrammingLanguages #Software

mikelech, 11 months ago to random

I understand the reason to just use vscode for #julialang development, but I would be happier for a proper IDE like RStudio for this purpose.

mo8it, 10 months ago to rust

:ferris: vs :julia:

Rust vs Julia in scientific computing

Why I think that Julia doesn't solve the two-language problem and when you should use Rust instead.

https://mo8it.com/blog/rust-vs-julia

The blog post is the base for my tiny talk at #RustSciComp23 which is now public:

https://youtu.be/0JkbNFpXlXc

Think of the recording as a trailer. The blog post has many more details and aspects that can not fit into 7 minutes ⏳️

I hope for discussions across both communities 🥰

#JuliaLang #RustLang

runjaj, 5 months ago to random Spanish

Calcular una integral numérica usando la regla de Simpson con #julialang es tan fácil como usar esta función:

∫(x, y) = (x[2]-x[1])/3*(y[1] + 4*sum(y[2:2:end-1]) + 2*sum(y[3:2:end-2]) + y[end])  

Por ejemplo, la integral del seno entre 0 y π es:

x = LinRange(0, π, 7) # 7 puntos entre 0 y π  
y = sin.(x) # Cálculo del seno para los 7 puntos  
∫(x, y) # Integración

2.000863189673536  

El valor realizando la integral simbólicamente es 2. Todo bien sencillo.

estebanmonte, 10 months ago to random

I've been trying to migrate to #julialang but #QuartoPub makes me stay in R. Any experience working with #julialang and #QuartoPub related solutions?

ramikrispin, 5 months ago to python

(1/6)This time of the year ☃️...Statistical Rethinking 2024 ❤️❤️❤️

This has become a tradition. Like previous Decembers, this week, the 2024 edition of the Statistical Rethinking course was announced. If you are looking to learn Bayesian statistics, I highly recommend checking it out.

🧵🧶👇🏼

Image credit: Last year course
#rstats #Stats #python #julialang #bayesian #DataScience

alephoto85, 9 months ago to programmazione Italian

[NOTIZIE] Il linguaggio di programmazione Julia debutta nella top 20 dell'indice TIOBE

@programmazione

"Il linguaggio di programmazione Julia si è assicurato per la prima volta un posto nell'ambita top 20 del TIOBE Index (Agosto 2023).

Questo storico risultato segna un'importante pietra miliare per Julia, un linguaggio di programmazione che esiste da poco più di un decennio."

[Articolo in inglese]

#programmazione #julialang

https://www.developer-tech.com/news/2023/aug/15/programming-language-julia-tiobe-index-top-20-debut/

fabrice13, 7 months ago to scheme Italian

I love graphs from dynamical systems theory and analytical mechanics.
I love those curves in phase space etc.
That makes me want to understand them better.

I have discovered the book "Structure and Interpretation of Classical Mechanics", that teaches mathematical physics and the #programminglanguage #scheme but it looks quite annoying to work in Scheme with my 💻.
So, are there similar books/courses/resources with similar means to an end? Maybe in easier to use programming languages? Like #julialang #julialanguage

runjaj, 7 months ago (edited 7 months ago) to random Spanish

Escribir ecuaciones en #LaTeX es bastante pesado. Afortunadamente está el paquete para #Julialang #Latexify.jl. Escribes la fórmula y la transforma en LaTeX de manera muy arreglada. Por ejemplo:

julia> using Latexify

julia> @latexify L = z/(f_hln(10))(10^((T_2-T_ref)/z)-10^((T_1-T_ref)/z))

L"$L = \frac{z}{f_{h} \cdot \mathrm{ln}\left( 10 \right)} \cdot \left( 10^{\frac{T_{2} - T_{ref}}{z}} - 10^{\frac{T_{1} - T_{ref}}{z}} \right)$"

Pone bien los subíndices, paréntesis y los operadores.

akhilrao, 10 months ago to random

Julia qs for y'all:

1. Is it very straightforward to run Julia code on GPU? Does it need special CUDA rewrites to work?

2. I do a lot of value function iteration for dynamic programming problems (I need global characterizations, approx around steady state doesn't work). Has anyone done this much in Julia? How's your experience been?

#julialang #EconTwitter

kevinmoerman, 1 month ago to random

Smoothing methods compared. These show "constrained smoothing" i.e. I'm telling the algorithm to leave the bottom half alone.

#comodo #ComputationalDesign #julialang

https://github.com/COMODO-research/Comodo.jl/blob/main/examples/demo_surface_mesh_smoothing.jl

Surface smoothing methods applied to a noisy bunny rabbit triangulation. The noisy bunny looks all spiky. The aim is to use smoothing to retrieve the original smooth bunny. However, some smoothing methods cause shrinkage. Also half the bunny is here constrained from smoothing to illustrate that such constraints (holding on to points) can be added.

castarco, 9 months ago to python

1/2

At first, I was a bit skeptical of the new Modular's #Mojo language.

Having no binaries available (only a playground), and a long history of #Python contenders such as #PyPy or Pyston that never achieved full compatibility... was a huge turnoff.

The amount of Python compilers that never reach 100% compatibility is almost hilarious.

Having seen the tremendous amount of effort behind #Julialang, and how little is its community compared to Python's... adds on top of that.

indymnv, 1 month ago to random

Seeing the schedule in #julialang conference and the last survey, looks like the community is embracing more the idea of using Rust as a support language.

kevinmoerman, 4 months ago to random

STL files give each triangle their own coordinates set. So none of the triangles actually share nodes. So step one, after importing such a mesh, is to merge the nodes. This animation shows vertex normal based "inflation", the left is unmerged, the right is merged.

#Makie #julialang

An animation showing mesh inflation for an unmerged mesh and a merged mesh. The triangles separate for the unmerged mesh, making it look like the mesh explodes. For the merged node mesh it looks more like balloon inflation as triangles remain connected.

djnavarro, 3 months ago to random

My weekend side-project: at long last I set some time aside to learn the basics of #julialang. The learning process was a tonne of fun. The thing where it somehow sprawled into a three-part series of blog posts... not so much fun. Anyway here they are... first one is me wrestling with some basic features in language

https://blog.djnavarro.net/posts/2024-03-01_julia-foundation/

franco_vazza, 6 months ago to Astronomy

Today's swirling electrons:
initially located in the halos of galaxies, finally accreted and mixing in a cluster undergoing a merger, and leading to the formation of a (mega) radio halo.

ENZO simulation + #JuliaLang processing, visualisation with SAO Ds9

#astronomy #astrodon

evolving number density of relativistic electrons in a cosmological simulation, finally condensating a large halo

baer, 20 days ago to random

hello #julialang people,
I am trying to add something to a package, so i opened the repl, entered pkg mode and ran develop MyPackage. Then I modified it in ~/.julia/dev/MyPackage but no changes showed up when I imported the package.
What did I do wrong
thanks

fabrice13, 5 months ago to random Italian

During the holidays, i.e. from the 23rd to the 7th, I will not work.
I'd like to continue playing with the #julialang and some #pytorch but it's really for pleasure.
I will read some stuff about brains and perception but it'll be Ed Yong's "An Immense World", and perhaps McCulloch and Ashby.
Also, I'm finishing Dune.

If you too have the "privilege" of taking a break, what are you up to?

UchidaMizuki, 5 months ago to random Japanese

#rstats is one of the best languages for data science.

But what about optimization? In optimization, #julialang is attractive to me because it allows for automatic differentiation.

Can we do automatic differentiation in #rstats ?

adamhsparks, 9 months ago to opensource

I moved instances, so here's an #introduction again. Currently I’m employed as a Bioeconomic modeller for the state of Western Australia in Perth working in agricultural systems. I have training in #agronomy, #PlantPathology, #Epidemiology and #GIS. Interested in using and promoting #OpenScience, #ReproducibleResearch, #OpenSource, and #OpenAccess. I use #RStats and #JuliaLang for my work.

terence, 4 months ago to random

Still playing with #julialang. Here's Switzerland in triangles.

@jonocarroll I get a lot of small dark triangles with some images which persist even if I set npts to a high value (5000) and refine as true or false. Any ideas? Thanks again for the package! I'm enjoying seeing what it produces.

#julialang adventures

krz, 6 months ago to python German

Here‘s another interesting #julialang, #python, #rstats comparison: „count the number of vowels in a string“. #julia uses an anonymous function as an argument to count(), #python iterates over the string using list comprehension, #rstats does the same but in a vectorized way

ramikrispin, 2 months ago (edited 2 months ago) to datascience

(1/3) Data Visualization with Makie - Julia 🚀👇🏼

Makie is a data visualization ecosystem for the Julia programming language, with high performance and extensibility. It supports various data visualization applications like 2D, 3D, and geospatial plots.

Image credit: Beautiful Makie by Lazaro Alonso

#DataScience #dataviz #datavisualization #data #julialang

rzeta0, 1 month ago to random

my brain is officially blown! 🤯

#julialang is so fast ! 🚀

(compared to python when it is forced to apply arbitrary functions with loops inside, element-wise to an array - that is, can't benefit from vectorised numpy functions)

this #maths experiment took about an hour in python and about 1 second in julia lang

sure my python isn't professional, but today was my first time with julia lang so that will be far from optimal either