Advent 2024: Day ι (Translate DrRacket interface in your language)

Hello all, This is a short, practical guide how you can translate the interface of DrRacket in your language. As I am currently studying Scribl - it will be added as a pull request for the documentation in string-constants.scrbl This is how you can translate the interface of DrRacket in your language. As you know DrRacket is a GUI – editor and runner for the many languages you can use via Racket – the language developer’s language. Currently existing translations are English, Danish, French, ...

#langs that Fit In Your Head – Terminally Undead

Paste # 14930: Sierpinski

#langs that Fit In Your Head – Terminally Undead

In Praise of LACI

This is a short blog post about Prabakhar Ragde's "Logic and Computation Intertwined", or "LACI", currently available online at https://cs.uwaterloo.ca/~plragde/flaneries/LACI/ Here is a bad thing about LACI: every time I search for it, my search engine...

Advent 2024: Day 5 (Epicycles Revisited)

Hi, Racket Discourse. Just a quick one for today, since I have been swamped with work all of a sudden... I reused some of my ideas from the year to make a snow globe! The first part of the simulation is basically the same as the previous post I made about Fourier Transforms, but the extension allows for the particles to move dynamically. The particle dynamics are simulated using semi-implicit Euler integration, which means we calculate the velocity at each timestep (under constant accelerati...

Creating a colorful HD wallpaper using Racket

For today's Advent Calendar, I'm sharing a colorful wallpaper I made for my phone using Racket. There's nothing too deep about it, just a bit of fun, but it does demonstrate a simple way to create a nice rainbow color gradient. It illustrates the power of Racket's for/fold form as well as using the pict library to create images. The wallpaper and the code is available at https://github.com/zamora/wallpaper

Category Theory in Programming

The full tutorial is here CTP. In this tutorial, I explore the applications of category theory in programming, using Racket to represent abstract mathematical concepts. The completed sections introduce categories, functors, and natural transformations, demonstrating how these ideas map into programming constructs with practical code examples. This work aims to help programmers understand system design from a mathematical perspective, building a foundation that progresses from basic structures t...

Racket Templates

1. `raco pkg install from-template`, 2. `raco new --list` , 3. `raco new <templatename> [optionalfoldername]` - Racket Templates