http://czterycztery.pl what I think about when riding a bike http://czterycztery.pl/blog/show.php?f=1781592002-EN I made a Brainfuck interpreter ( https://en.wikipedia.org/wiki/Brainfuck ) with additional commands for turtle graphics. I called it "turtlefuck" (alternatively "turtlefreeze" — that's the name I use in the program to avoid profanity). Check it out: https://czterycztery.pl/programy/turtlefreeze/ . And try drawing some fractal with it. http://czterycztery.pl/blog/show.php?f=1781474811-EN I was coding in brainfuck recently and stumbled upon a problem: how to make a normal if statement? It seems simple (...) http://czterycztery.pl/blog/show.php?f=1781426663-EN Recently (some may remember) I posted here a library for generating Scratch applications from Python. Now I have used it (with AI) to create another program: an algebraic expression simplifier. You give it an expression such as "(a+2)*(a-2)", and it transforms it step by step until it yields "a*a-4". A link to the program, its Python source, and various descriptions can be found at https://czterycztery.pl/programy/scratch_python_ai/ . Also, I have added on that subpage "scratch_python_ai" a link to yet another game made with these tools. http://czterycztery.pl/blog/show.php?f=1781300507-EN Today I created a Python library for generating Scratch projects. The library is called scratchgen. It may prove useful when one wants AI to generate Scratch programs, as the library contains numerous examples and extensive documentation covering both the use of the library itself and the creation of games in Scratch. My own workflow is as follows: I take an AI agent, provide it with the library directory, instruct it to study the documentation, and then have it build games for me. Here: https://czterycztery.pl/programy/scratch_python_ai/ http://czterycztery.pl/blog/show.php?f=1780235001-EN Yesterday, for the first time, I managed to get an AI to successfully hack a game at my request. Here is how we did it. (...) http://czterycztery.pl/blog/show.php?f=1768534605-EN In May 2006, I was in Malaga and wanted to spend the night under the stars, so I found a great spot – quiet, out of sight, yet quite close to the city center. I stayed there comfortably, pleasantly, and peacefully. Later, in 2013, I was in Malaga again, so I stayed in the same spot once more (2013.05.31), and again, I slept well. I’m noting down this place in case I ever travel to Malaga again (...) http://czterycztery.pl/blog/show.php?f=1766415610-EN Every now and then I need to remind myself what the softmax function is, why its formula is the way it is, and how temperature works in that formula. The Wikipedia article doesn't explain it in a way I understand, so hereby I'm writing it down so that in the future I can look here, read it, and understand (...) http://czterycztery.pl/blog/show.php?f=1766129023-EN for years I explained incorrectly why I am allowed to multiply both sides by the same thing (...) http://czterycztery.pl/blog/show.php?f=1764252815-EN Today I tried to translate into English a fragment of Miłosz’s “Treatise on Poetry” in a way that I would like. (...) http://czterycztery.pl/blog/show.php?f=1763873614-EN Imagine that I have a font in which the letter "D" has the shape of the letter "L", and the letter "L" has the shape of the letter "D". If I create a PDF with the word "DUCK" using this font, it will look like "LUCK". (...) http://czterycztery.pl/blog/show.php?f=1763624395-EN I made a physics problem generator for direct current. It knows five formulas linking seven physical quantities. The program selects several quantities to be given, one quantity to be found, determines the shortest path in the graph (...) http://czterycztery.pl/blog/show.php?f=1748147343-EN I came up with a way to graphically determine the equivalent resistance of resistors connected in parallel (...) http://czterycztery.pl/blog/show.php?f=1748098040-EN I just posted here, on the site, my notes about sorting images: https://czterycztery.pl/grafika/sortowanie_obrazkow/ http://czterycztery.pl/blog/show.php?f=1741837283-EN I've just uploaded the English translation of my article on how to write quines: https://czterycztery.pl/slowo/quine-EN.html http://czterycztery.pl/blog/show.php?f=1741720824-EN During the cleanup I was doing on my computer, I found something I wrote a long time ago, when I was much younger than today. Around June 2000, inspired by the novel "Sistine, or a Romance from Cerebral Life," I decided to write a serialized novel about high society life. I wrote the first installment of the novel "Born in Youth" - here it is: (...) http://czterycztery.pl/blog/show.php?f=1741334415-EN Sometimes I wonder, if someone asked me what computer science is, since it's not the art of operating a computer and making the printer work again, what could one answer. (...) http://czterycztery.pl/blog/show.php?f=1741011024-EN Here's a probability theory problem that I like (...) http://czterycztery.pl/blog/show.php?f=1726496007-EN Look - and they say that a mirror swaps the left with the right (...) http://czterycztery.pl/blog/show.php?f=1726461064-EN It's interesting that before the invention of photography, throughout centuries of painting development, no painter discovered (...) http://czterycztery.pl/blog/show.php?f=1719482003-EN I made an English-language version of this blog yesterday. (...) http://czterycztery.pl/blog/show.php?f=1713976916-EN If you have a Reflecta RubyScan scanner (idVendor=115b, idProduct=3100) and want to run it on Linux, know that it pretends to be a USB camera (...) http://czterycztery.pl/blog/show.php?f=1713201383-EN There's a tradition that during weddings, games with a sexual undertone are often organized during the "oczepiny" (the unveiling ceremony). It's an interesting custom. (...) http://czterycztery.pl/blog/show.php?f=1712370236-EN I have a feeling that since people stopped programming in machine code and assembly language, those languages have changed (...) http://czterycztery.pl/blog/show.php?f=1706156879-EN I came up with a logical puzzle yesterday that's easy, but none of the language models I tested could solve it. (...) http://czterycztery.pl/blog/show.php?f=1703824939-EN It's interesting to consider whether there is progress in art, or just changes in fashion. For example, is Lem (https://en.wikipedia.org/wiki/Stanisław_Lem) really better than Cervantes (https://en.wikipedia.org/wiki/Miguel_de_Cervantes), or do we just think so because he's contemporary and writes in a style we're accustomed to? This could be tested experimentally (...) http://czterycztery.pl/blog/show.php?f=1703474534-EN I once thought that it could be a hobby to collect various interesting colors. When walking around the world, if you see an interesting color, you could measure it with some kind of color meter and add it to your collection with a short note. (...) http://czterycztery.pl/blog/show.php?f=1700537766-EN Microscopes could have digital enhancement. I mean, instead of looking at the object directly through the optics, the object could be viewed through a camera with the aid of magnifying optics, and the signal from the camera (...) http://czterycztery.pl/blog/show.php?f=1697863088-EN During some war, it could be, say, Brazil fighting Mongolia, and Brazil might have a secret project (...) http://czterycztery.pl/blog/show.php?f=1697693524-EN When I have a longer conversation with ChatGPT, sometimes the beginning of that conversation may not fit into the context anymore (...) http://czterycztery.pl/blog/show.php?f=1694874285-EN For several years, I've been wondering: if I looked at the solar system from above (...)