Published on: 2025-04-19 13:23:48
(Title image sourced from: Wikipedia - Trigonometry) Why I wanted to calculate the network latency between all my VPS nodes, and add the latency into the configuration file of Bird BGP daemon, so the network packets are forwarded through the lowest latency route. However, I have 17 nodes as of today, and I didn't want to manually run a ping command between each pair. So I came up with a solution: I can mark the latitudes and longitudes of the physical locations of my nodes, calculate the phys
Keywords: arctan cos frac function sin
Find related items on AmazonPublished on: 2025-04-23 00:02:41
I recently posted a blog post about a new hash table, and whenever I do something like that, I learn at least one new thing from my comments. In my last comment section Rich Geldreich talks about his hash table which uses “Fibonacci Hashing”, which I hadn’t heard of before. I have worked a lot on hash tables, so I thought I have at least heard of all the big important tricks and techniques, but I also know that there are so many small tweaks and improvements that you can’t possibly know them all
Keywords: fibonacci function hash hashing table
Find related items on AmazonPublished on: 2025-04-25 21:45:41
This blog site has been archived. Go to react.dev/blog to see the recent posts. Just three and a half years ago we open sourced a little JavaScript library called React. The journey since that day has been incredibly exciting. Commemorative T-Shirt In order to celebrate 50,000 GitHub stars, Maggie Appleton from egghead.io has designed us a special T-shirt, which will be available for purchase from Teespring only for a week through Thursday, October 6. Maggie also wrote a blog post showing all
Keywords: component function jordan react way
Find related items on AmazonPublished on: 2025-04-24 16:30:22
RNG and Cosine in Nix How to implement random number generation and cosine for your NixOS configuration NixOS is an immutable, atomic Linux distribution with a declarative and reproducible configuration and packaging system using the purely functional, lazily evaluated, dynamically typed Nix programming language. Kublai: AAAAAAHHH too many buzzwords, what does that all mean??? Glad you asked! Basically, in NixOS, you can configure your entire system using a configuration.nix file and NixOS wi
Keywords: builtins error function nix pkgs
Find related items on AmazonPublished on: 2025-04-29 10:40:40
As many others observe as well, one of the major reasons to write is to firm up ideas in one’s own head. Serializing an idea out into English words is still no guarantee one understands it deeply, but it is great progress over a very fuzzy idea that has never been fleshed out at all. I’ve known for a long time I wanted to sit down and write this out. But I had no idea how many principles I’ve either drawn out from my times with functional languages, or had sharpened by them forcing me on to cer
Keywords: 100 20 functional languages programming
Find related items on AmazonPublished on: 2025-04-30 07:25:57
“I had got disillusioned with the state of the art of looking for life on other worlds,” Wong said. “I thought it was too narrowly constrained to life as we know it here on Earth, but life elsewhere may take a completely different evolutionary trajectory. So how do we abstract far enough away from life on Earth that we’d be able to notice life elsewhere even if it had different chemical specifics, but not so far that we’d be including all kinds of self-organizing structures like hurricanes?” Th
Keywords: evolution functional information life said
Find related items on AmazonPublished on: 2025-04-28 23:29:48
Peering into the Linux Kernel with trace June 04, 2020 Recently, I was working on a patch for a popular open-source project, and discovered that the test suite was failing intermittently. A closer look revealed that the last access time for some files in the project folder were changing unexpectedly, and this was causing a test to fail. (The failing test was not related to my patch.) Looking at the project code, it seemed impossible for it to be unexpectedly accessing those files during the te
Keywords: function kernel linux touch_atime trace
Find related items on AmazonPublished on: 2025-05-05 15:04:12
It's a pedagogical pet peeve of mine when technical concepts are simply listed in their fully developed state, with little in the way of motivation, derivation, or historical context. This, I think, is like publishing a cookbook filled with beautiful pictures of cakes, but no recipes. My aim with the "Baking <x> from scratch" series is to describe not only what, but how and why, with the hope that this will lead to a richer and more durable understanding. The Famous Y combinator This post is
Keywords: calculus createevil enspace function lambda
Find related items on AmazonPublished on: 2025-05-06 08:35:36
I’ve been trying to write this post at least a dozen times. I don’t mean this figuratively; at one point, I literally had a desktop folder with a dozen abandoned drafts. They had wildly different styles—from rigoruous to chaotically cryptic and insufferably meta; they would start abruptly, chew on themselves, and eventually trail off to nowhere. One by one, I threw them all away because they all sucked. It turns out that I wasn’t really writing a post; I was actually preparing a talk. I was pre
Keywords: alert function json prompt return
Find related items on AmazonPublished on: 2025-05-11 03:43:17
Intro In August 2020, we were commissioned by a client with a cache of locked QText documents from the mid 90s - to which he has lost the passcode. QText was a DOS era Hebrew-English word processor written in Turbo Pascal, released 15 or so odd years before neither I nor @Elisha had laid hands on a reverse engineering tool. In this blog post, we’ll describe the process of analyzing the encrypted documents and reverse engineering a DOS program. Hopefully we’ll be a
Keywords: byte function key passcode x00
Find related items on AmazonPublished on: 2025-05-11 15:51:19
It is a somewhat common question to me: how do we write C in curl to make it safe and secure for billions of installations? Some precautions we take and decisions we make. There is no silver bullet, just guidelines. As I think you can see for yourself below they are also neither strange nor surprising. The ‘c’ in curl does not and never did stand for the C programming language, it stands for client. Disclaimer This text does in no way mean that we don’t occasionally merge security related bug
Keywords: code curl functions memory read
Find related items on AmazonPublished on: 2025-05-11 12:44:04
xlwings Lite brings the VBA experience into the modern age by offering a privacy-first, secure, and developer-friendly way to automate Excel and write custom functions with Python. Free & easy to install: Available for free in the Office add-in store for both personal and commercial use. No registration or login required, simply install and create amazing things! Cross-platform: Works on Windows, macOS, and Excel for the web. It’s compatible with Microsoft 365 as well as recent perpetual versi
Keywords: custom excel functions lite python
Find related items on AmazonPublished on: 2025-05-11 16:34:05
Hello Joe, I've personally wanted an easy way to load modules from different places. If you started with making modules easy to load from different places, then later provide support for functions, I imagine this would be easier to implement immediately and easier for people to make use of immediately ... where "people" refers to me :) I've got two suggestions (mostly inspired by the Mozilla Framework)... 1. How about letting the programmer choose where the functions come from (kv store,
Keywords: code fib function functions modules
Find related items on AmazonPublished on: 2025-05-19 10:37:55
The smallest PubSub library possible. Zero Dependencies. 149 bytes. I wrote this article a while back. But I realized...why not just publish the code? Smaller than the competition. Built with JS13K games in mind. Such as cred which is unfortunately in need of some weight loss soon, it is almost 25KB now. If you have any ideas that may trim off even one single byte please share it. Create an issue! I don't mind. The Source This is the entire source (index.js). let t = new EventTarget ( ) ;
Keywords: const evt function message pubsub
Find related items on AmazonPublished on: 2025-05-21 23:29:04
Hi HN, we’re the cofounders of Augento ( https://augento.ai/ ). We’re building Deepseek R1-like fine-tuning as a service. You connect your agent, tell us when it’s right or wrong, and we deliver an LLM optimized for that agent. There’s a demo video https://www.youtube.com/watch?v=j5RQaTdRrKE , and our docs are at https://docs.augento.ai/ . It’s open for anyone to use at https://augento.ai Agents fail all the time, especially when you try to use them for something actually useful. Current soluti
Keywords: agent fine function model reward
Find related items on AmazonPublished on: 2025-05-20 03:59:43
The way we're thinking about breaking changes is really silly 26 Mar, 2025 A major problem plaguing modern compilers is that they have no concept of time. When run on a codebase, a compiler treats it as if it had always been in the exact state it is in at that moment and updating a dependency literally just updates the code that is downloaded to your hard drive without modifying its call sites in any way. Any errors that occur as a result are treated as fundamental to your program and not as t
Keywords: function int maybe migration type
Find related items on AmazonPublished on: 2025-05-20 19:46:57
Hello! Today, we will explore functional programming with the concepts of functors, applicatives, and monads. We will discuss what they are and why they matter one step at a time. Note that all the examples will be in Haskell, but you’re not required to know Haskell to read this post. I’ve also added a section at the end following a pretty disappointing interaction with someone associated with the Haskell foundation. Functors This is a closed box: Of course, as with every closed box, you can
Keywords: box function inside int maybe
Find related items on AmazonPublished on: 2025-05-22 20:01:22
Brought to you by explained.ai The Matrix Calculus You Need For Deep Learning Terence Parr and Jeremy Howard (Terence is a tech lead at Google and ex-Professor of computer/data science in University of San Francisco's MS in Data Science program. You might know Terence as the creator of the ANTLR parser generator. For more material, see Jeremy's fast.ai courses and University of San Francisco's Data Institute in-person version of the deep learning course.) Please send comments, suggestions,
Keywords: chain derivative function rule vector
Find related items on AmazonPublished on: 2025-05-26 02:23:35
Philosophy of coroutines [Simon Tatham, initial version 2023-09-01, last updated 2025-03-25] [Coroutines trilogy: C preprocessor | C++20 native | general philosophy ] Introduction I’ve been a huge fan of coroutines since the mid-1990s. I encountered the idea as a student, when I first read The Art of Computer Programming . I’d been programming already for most of my childhood, and I was completely blown away by the idea, which was entirely new to me. In fact, it’s probably not an exaggerati
Keywords: code coroutine coroutines function stack
Find related items on AmazonPublished on: 2025-05-25 00:31:15
When using a generative artificial intelligence (AI) model such as Gemma, you may want to use the model to operate programming interfaces in order to complete tasks or answer questions. Instructing a model by defining a programming interface and then making a request that uses that interface is called function calling. Important: A Gemma model cannot execute code on its own. When you generate code with function calling, you must run the generated code yourself or run it as part of your applicat
Keywords: calling function gemma model product
Find related items on AmazonPublished on: 2025-05-27 03:34:26
The Jakt programming language Jakt is a memory-safe systems programming language. It currently transpiles to C++. NOTE: The language is under heavy development. NOTE If you're cloning to a Windows PC (not WSL), make sure that your Git client keeps the line endings as . You can set this as a global config via git config --global core.autocrlf false . Usage The transpilation to C++ requires clang . Make sure you have that installed. jakt file.jakt ./build/file Building See here. Goals
Keywords: fn foo function reference type
Find related items on AmazonPublished on: 2025-05-31 14:38:57
Rushil Agrawal / Android Authority TL;DR Currently, Google’s Gemini AI allows users to upload only one image at a time for context and analysis. With a future update, Google will allow users to upload up to ten images in a single prompt to Gemini, saving time and enabling better context-building. Google is hard at work improving Gemini’s functionality. Users can already feed in images and other files to add context to their search queries or have them analyzed by Gemini. However, this functio
Keywords: app functionality gemini image upload
Find related items on AmazonPublished on: 2025-05-31 20:16:56
Every day, researchers search for optimal solutions. They might want to figure out where to build a major airline hub. Or to determine how to maximize return while minimizing risk in an investment portfolio. Or to develop self-driving cars that can distinguish between traffic lights and stop signs. Mathematically, these problems get translated into a search for the minimum values of functions. But in all these scenarios, the functions are too complicated to assess directly. Researchers have to
Keywords: function functions method minimum newton
Find related items on AmazonPublished on: 2025-06-01 12:58:40
We've explored progressively more sophisticated techniques for optimizing numerical computations. We started with basic MLIR concepts, moved through memory management and linear algebra, and then neural network implementations. Each layer has added new capabilities for expressing and optimizing computations. Now we're reading to build our first toy compiler for Python expressions. In this section, we'll explore how to use the egglog library to perform term rewriting and optimization on Python e
Keywords: function import ir llvm self
Find related items on AmazonPublished on: 2025-06-14 05:29:04
Managing memory in C is difficult and error prone. C++ solves this with smart pointers like std::unique_ptr and std::shared_ptr . This article demonstrates a proof-of-concept (aka stupid) smart pointer in C with very little code. Along the way we'll look at the layout of the 32-bit x86 call stack and write assembly in a C program. In C, heap memory is allocated with a call to malloc and deallocated with a call to free . It is the programmer's responsibility to free allocated memory when no long
Keywords: function hijacked int return stack
Find related items on AmazonPublished on: 2025-06-11 09:49:06
What is really going on in the quantum double-slit experiment? The question raised in this post’s title seems to lie at the heart of the matter. In this experiment, which I recently reviewed here, particles of some sort are aimed, one at a time, at a wall with two slits, and their arrival is recorded on a screen behind the wall. As a parade of particles proceeds, one by one, past the wall, an interference pattern somehow appears, emerging gradually like a spectre on the screen. Interference is
Keywords: door function particle particles wave
Find related items on AmazonPublished on: 2025-06-20 02:26:38
We're excited to announce the initial launch of Nuanced, an open-source Python library that provides LLMs with precise call graph context. By analyzing function relationships, we generate a structured representation of code dependencies. This is our first step toward building a richer context layer that can help AI coding assistants make more informed decisions about your codebase. Why AI coding needs relevant context AI coding assistants are surprisingly primitive when it comes to understandi
Keywords: code function graph nuanced python
Find related items on AmazonPublished on: 2025-06-21 07:11:41
March 06, 2025 nullprogram.com/blog/2025/03/06/ Ted Unangst published dude, where are your syscalls? on flak yesterday, with a neat demonstration of OpenBSD’s pinsyscall security feature, whereby only pre-registered addresses are allowed to make system calls. Whether it strengthens or weakens security is up for debate, but regardless it’s an interesting, low-level programming challenge. The original demo is fragile for multiple reasons, and requires manually locating and entering addresses for
Keywords: assembly function long openbsd stack
Find related items on AmazonPublished on: 2025-06-21 22:07:17
Not long ago, I was auditing a codebase for work (looking for bugs) when I realized that despite the quality of the code, I was becoming mentally fatigued extremely quickly and had a hard time working on it for long stretches of time… I ended up figuring out what made this codebase so difficult to stick with, but it didn’t turn out to be what I expected (Cyclomatic Complexity). After doing a little reflection and research, it ended up being something more related to readability–something I didn
Keywords: code complexity function return variable
Find related items on AmazonPublished on: 2025-06-23 04:07:17
Not long ago, I was auditing a codebase for work (looking for bugs) when I realized that despite the quality of the code, I was becoming mentally fatigued extremely quickly and had a hard time working on it for long stretches of time… I ended up figuring out what made this codebase so difficult to stick with, but it didn’t turn out to be what I expected (Cyclomatic Complexity). After doing a little reflection and research, it ended up being something more related to readability–something I didn
Keywords: code complexity function return variable
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