franco_vazza, to Astro
@franco_vazza@mastodon.social avatar


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 in parallel using 16 cores on my MAC - the input simulation has 1024^3 cells.

video/mp4

gregorni, to Julia
@gregorni@fosstodon.org avatar

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

mikelech, to random
@mikelech@fosstodon.org avatar

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

mo8it, to rust
@mo8it@fosstodon.org avatar

: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 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 🥰

arinbasu1, to random

Started a channel in #Calckey.social on programming language, here https://calckey.social/channels/9e81omcj1j

runjaj, to random Spanish
@runjaj@mastodon.social avatar

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, to random

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

arinbasu, to random

I have started a channel for those of us who are interested in . Please join us on channels in the channel.

alephoto85, to programmazione Italian
@alephoto85@livellosegreto.it avatar

[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]

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

fabrice13, to scheme Italian
@fabrice13@neuromatch.social avatar

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 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

ramikrispin, to python
@ramikrispin@mstdn.social avatar

(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

runjaj, (edited ) to random Spanish
@runjaj@mastodon.social avatar

Escribir ecuaciones en es bastante pesado. Afortunadamente está el paquete para .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, 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

djnavarro, to random
@djnavarro@hachyderm.io avatar

My weekend side-project: at long last I set some time aside to learn the basics of . 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/

kevinmoerman, to random
@kevinmoerman@fosstodon.org avatar

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

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.

kevinmoerman, to random
@kevinmoerman@fosstodon.org avatar

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.

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.

franco_vazza, to Astronomy
@franco_vazza@mastodon.social avatar

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 + processing, visualisation with SAO Ds9

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

indymnv, to random
@indymnv@fosstodon.org avatar

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

castarco, to python
@castarco@hachyderm.io avatar

1/2

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

Having no binaries available (only a playground), and a long history of contenders such as 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 , and how little is its community compared to Python's... adds on top of that.

fabrice13, to random Italian
@fabrice13@neuromatch.social avatar

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, to random Japanese

is one of the best languages for data science.

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

Can we do automatic differentiation in ?

krz, to python German

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

terence, to random
@terence@fosstodon.org avatar

Still playing with . 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.

adventures

adamhsparks, to opensource

I moved instances, so here's an 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 , , and . Interested in using and promoting , , , and . I use and for my work.

ramikrispin, (edited ) to datascience
@ramikrispin@mstdn.social avatar

(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

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