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Implementing Complex Numbers and FFT with Just Datatypes (No Floats)

2025-05-25

Implementing Complex Numbers and FFT with Just Datatypes (No Floats)

This article presents a method for implementing complex numbers and Fast Fourier Transform (FFT) using only algebraic datatypes, without relying on floating-point numbers. The author begins by explaining the advantages of using algebraic datatypes for numerical representation and highlights inefficiencies in traditional FFT implementations. A concise and elegant implementation of integers and complex numbers using only algebraic datatypes is then demonstrated. Finally, a purely functional implementation of complex FFT, also without floats, is derived. This is achieved by using balanced ternary representation for integers and extending Gaussian integers to represent complex numbers, cleverly circumventing the fusion-hindering effects of floating-point arithmetic, thereby improving algorithm efficiency.

(gist.github.com)

Development Algebraic Datatypes

Advanced Git Configuration: How Core Devs Configure Git

2025-02-25

Advanced Git Configuration: How Core Devs Configure Git

This post delves into lesser-known Git configuration settings that can significantly improve the Git experience. The author shares the best configurations discovered by Git core developers during a "Spring Cleaning" experiment, categorized into three groups: settings that demonstrably improve Git (like improved branch sorting, diff algorithms, push and fetch operations), harmless but occasionally helpful settings (like autocorrect prompting, showing diffs on commit, reusing conflict resolutions), and settings based on personal preference (like improved merge conflict handling, rebase defaults, and filesystem monitoring). Each setting's function is explained in detail with corresponding commands, helping readers optimize their Git configurations for increased efficiency.

(blog.gitbutler.com)

Development Configuration

Sütterlinschrift: The Rise and Fall of a German Handwriting Script

2025-08-21

Sütterlinschrift: The Rise and Fall of a German Handwriting Script

Sütterlinschrift, a widely used German handwriting script from 1915 to the 1970s, represents the final form of Kurrent. Designed by Ludwig Sütterlin, it was banned by the Nazi regime in 1941 and replaced with 'normal script'. Despite this, Sütterlinschrift continued to be used by many post-war, fading from common use only in the 1970s. Its unique letters and ligatures even left a mark in mathematics and proofreading, showcasing its historical and cultural impact.

(en.wikipedia.org)

Misc German history

arXivLabs: Experimental Projects with Community Collaborators

2025-06-01

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on the website. Individuals and organizations working with arXivLabs uphold values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only partners with those who share them. Have an idea to enhance the arXiv community? Learn more about arXivLabs.

(arxiv.org)

Development

Former DOGE Aide Violated Treasury Policy by Leaking Unencrypted Database

2025-03-18

Former DOGE Aide Violated Treasury Policy by Leaking Unencrypted Database

Marko Elez, a former aide to DOGE (a Trump-aligned unit run by Elon Musk), violated US Treasury policy by emailing an unencrypted database containing personal information to two Trump administration officials. A lawsuit filed by New York's Attorney General and 18 other state AGs alleges unauthorized access to the Treasury Department's Bureau of Fiscal Services (BFS), which handles trillions of dollars annually. The investigation revealed Elez violated Treasury regulations by sending an unencrypted database containing personally identifiable information without prior approval. Elez subsequently resigned following the discovery of hateful tweets. While analysis showed Elez didn't alter payment systems, his sending of the unencrypted database still violated BFS policy.

(www.theregister.com)

Tech

Do Files Want to Be Actors? io_uring and the Convergence of Computing Paradigms

2025-01-04

Do Files Want to Be Actors? io_uring and the Convergence of Computing Paradigms

In high-performance Linux applications, io_uring is revolutionizing OS interaction. It uses submission and completion queues, allowing asynchronous I/O without waiting for syscalls. Simply queue operations and continue computation. This remarkably mirrors the Actor model: objects send messages for concurrent computation. io_uring's sending operations to file descriptors and asynchronously receiving responses strikingly resembles this. This suggests a shift towards asynchronous, self-managing OS behavior; traditional syscall methods might be an outdated abstraction.

(lewiscampbell.tech)

Development

Garmin's Fenix 8 Pro: A Satellite-Connected Smartwatch Beats Apple to the Punch

2025-09-04

Garmin's Fenix 8 Pro: A Satellite-Connected Smartwatch Beats Apple to the Punch

Just days before Apple's anticipated unveiling of the satellite-capable Apple Watch Ultra, Garmin launched its own satellite-connected smartwatch, the Fenix 8 Pro. Featuring Garmin's inReach technology, the Fenix 8 Pro enables satellite-based location check-ins and text messaging, and also boasts cellular connectivity for calls, voice messages, LiveTrack, and weather forecasts. An SOS emergency feature, a high-brightness microLED display, durable construction, and comprehensive health tracking round out the features. Available in 47mm and 51mm sizes with AMOLED and microLED display options, the Fenix 8 Pro, priced from $1200 and $2000 respectively, launches September 8th, directly challenging Apple's upcoming Apple Watch Ultra 3. Note that Garmin's satellite services come with a subscription fee, unlike Apple's rumored offering.

(www.macrumors.com)

Hardware

PyTorch Model with Metal Acceleration: Performance and Correctness

2025-09-04

This article presents a PyTorch-based model that attempts to leverage Metal for accelerated computation while providing pure PyTorch fallbacks to guarantee correctness. The model's core involves complex calculations including matrix multiplications, cumulative sums, and exponentiation. To enhance performance, the authors attempt to use Metal for custom kernels, but fall back to a pure PyTorch implementation if the Metal extension isn't available. This design ensures compatibility and reliability across different hardware platforms, offering developers a solution that balances performance and correctness.

(gimletlabs.ai)

Development Model Acceleration

The Epic Collapse of a Business Partnership: The Sriracha Saga

2025-09-07

The Epic Collapse of a Business Partnership: The Sriracha Saga

A 28-year partnership between California farmer Craig Underwood and Huy Fong Foods founder David Tran imploded over a disagreement regarding the 2017 chili pepper payment. Underwood was Huy Fong's sole chili supplier, and Tran's sriracha sauce was a global phenomenon, resulting in an incredibly close relationship. The fallout saw Tran's factory severely hampered by supply shortages, while Underwood faced financial ruin, each accusing the other of malicious intent. Underwood won the subsequent lawsuit, but both suffered massive losses, leading to sriracha shortages and the rise of competitors. This epic business collapse highlights the critical role of trust in long-term partnerships and underscores the management and risk-control deficiencies of rapidly expanding businesses.

(fortune.com)

Startup business partnership sriracha

FastHTML Best Practices: Streamlining Web Development

2025-06-05

FastHTML differs significantly from frameworks like FastAPI/React. Its best practices emphasize conciseness and efficiency, leveraging smart defaults to minimize code. This article highlights several key FastHTML best practices: simplifying database table creation with `db.create()`; using function names as route names; preferring query parameters over path parameters; utilizing return values for functional chaining; employing the `.to()` method for URL generation; leveraging PicoCSS's automatic styling; and adopting functional programming patterns. These techniques result in cleaner, more readable, and maintainable FastHTML applications.

(www.fastht.ml)

Development

Small Town Baseball: A Fight for the American Soul

2025-08-28

Small Town Baseball: A Fight for the American Soul

Journalist Will Bardenwerper's new book, *Homestand: Small Town Baseball and the Fight for the Soul of America*, explores the consequences of Major League Baseball cutting 40 affiliated minor league teams—each costing roughly the equivalent of a single major leaguer's salary. Following the Batavia Muckdogs in New York, Bardenwerper highlights how affordable and accessible minor league baseball fosters community in working-class towns. He celebrates the resilience of the Muckdogs' fans and owners who revived the team after its initial elimination. The book emphasizes the unique intimacy and affordability of minor league games, fostering strong community bonds and intergenerational connections rarely seen elsewhere in modern American life. Bardenwerper argues that the cuts represent a loss of vital community values.

(lithub.com)

Misc Minor League Baseball American Culture

Evidence: A Powerful Framework for Building Data Visualization Apps

2025-04-12

Evidence: A Powerful Framework for Building Data Visualization Apps

Evidence is a robust framework for building data visualization applications. It boasts a rich library of components, including various chart types (line, bar, scatter, heatmaps, etc.), maps, input components, and UI elements. It supports multiple data sources, including SQL queries, and offers diverse deployment options such as cloud services (AWS Amplify, Azure Static Apps, etc.) and self-hosting. Developers can easily create interactive data visualization apps and extend functionality with custom components and plugins.

(docs.evidence.dev)

Development framework

Embracer Games Archive: Preserving Gaming History

2025-05-10

Embracer Games Archive: Preserving Gaming History

Embracer Games Archive aims to preserve video game history. Inspired by Embracer Group CEO Lars Wingefors's personal collection, the archive has grown alongside the company. Its goal is to collaborate with institutions, grassroots movements, journalists, researchers, publishers, and studios to preserve and document gaming history, ultimately benefiting the entire industry.

(embracergamesarchive.com)

Game

Linux C Standard Library Showdown: musl vs. uClibc vs. dietlibc vs. glibc

2025-05-10

An Eta Labs project compares several standard library implementations for Linux, focusing on the balance between feature richness and bloat. The article uses tables and notes to compare musl, uClibc, dietlibc, and glibc across size, performance, behavior on resource exhaustion, ABI, algorithms, features, target architectures, and build environment. musl excels in size and performance, glibc offers the most features but is the largest, while uClibc and dietlibc fall somewhere in between. The comparison also considers robustness under resource exhaustion and security implications, offering developers valuable insights for choosing the right standard library.

(www.etalabs.net)

Development

UAE's Ambitious Genomic Sequencing Project: Mapping the Nation's DNA

2025-08-21

UAE's Ambitious Genomic Sequencing Project: Mapping the Nation's DNA

Abu Dhabi is significantly expanding its national genomic sequencing project by collecting DNA from Emirati newborns, aiming to place the UAE at the forefront of healthcare. The project has already mapped the genomes of 68% of Emirati citizens, and voluntary at-birth sequencing is offered to detect over 800 treatable childhood genetic conditions. Addressing the global underrepresentation of Arab genomes (around 1% mapped), this initiative tackles public health challenges and expands personalized healthcare. M42, the state-backed AI firm running the project, is seeking collaborations with other nations and pharmaceutical companies to leverage its growing dataset.

(www.semafor.com)

Tech Genomic Sequencing Personalized Healthcare

The Elegant Struggle: Designing Public/Private Members in a Scripting Language

2025-05-26

A developer, building a fantasy console project, grapples with adding a module system to their scripting language. Exploring various approaches to distinguish public and private declarations – modifier keywords (like Java's `public` and `private`), modifier sections (like C++), sigils in identifiers (like Python's underscore), export manifests (like Scheme), and sigils at declarations (like Oberon's `*`) – they lean towards a novel solution: prefixing declaration keywords with an underscore (e.g., `rec_` for private records, `def_` for private functions). While unconventional, this method offers conciseness and avoids repeating sigils at every use site.

(journal.stuffwithstuff.com)

Development module system

Rep. Raskin Urges Citizens to Demand Their Data from DOGE

2025-03-13

Rep. Raskin Urges Citizens to Demand Their Data from DOGE

Rep. Jamie Raskin is encouraging all U.S. citizens to join him in formally requesting access to their personal data held by the Department of Government Efficiency (DOGE) and Elon Musk. A court injunction compels DOGE to comply with citizen requests under the Freedom of Information Act, encompassing the Federal Privacy Act of 1974. Citizens can simply fill out a form and mail it to DOGE to access their data. This newly recognized federal agency, having systematically accessed government computer systems, is now obligated to respond to information requests from any citizen exercising their right to privacy.

(jamieraskin.com)

Tech Freedom of Information Act

Solving Indoor Navigation: How Hyper Achieved 1-Meter Accurate Indoor GPS

2025-08-01

Solving Indoor Navigation: How Hyper Achieved 1-Meter Accurate Indoor GPS

A developer's journey, from viral AR navigation demos to tackling the indoor navigation challenge for a world-leading retailer, culminated in the founding of Hyper. This article details the three core challenges of indoor navigation: indoor maps, indoor navigation, and indoor location. The author explains how they overcame limitations of Bluetooth beacons, WiFi, magnetometers, and computer vision, ultimately achieving a breakthrough 1-meter accurate indoor GPS by combining WiFi and SLAM technology, and cleverly addressing SLAM drift and orientation challenges. Their future ambition is to scale this technology to a billion users.

(andrewhart.me)

Tech indoor navigation GPS positioning SLAM technology

Major Linux Security Flaw: io_uring Bypass Leaves Security Tools Blind

2025-04-24

Major Linux Security Flaw: io_uring Bypass Leaves Security Tools Blind

ARMO researchers have uncovered a critical vulnerability in Linux's io_uring asynchronous I/O interface, rendering most runtime security tools, including Falco, Tetragon, and Microsoft Defender, unable to detect rootkits exploiting it. Attackers can leverage io_uring to bypass syscall monitoring, enabling stealthy operations. ARMO's proof-of-concept rootkit, 'Curing,' demonstrates the severity by operating entirely through io_uring. While some vendors have responded with fixes, widespread exposure remains. The research highlights the need for security vendors to adopt mechanisms like KRSI for enhanced detection capabilities.

(www.armosec.io)

Tech Linux Security

AI-Powered Ransomware: A 70-Cent Attack?

2025-09-07

AI-Powered Ransomware: A 70-Cent Attack?

Researchers at NYU's Tandon School of Engineering have developed a proof-of-concept AI-powered ransomware called "Ransomware 3.0." This prototype uses LLMs to automate all four phases of a ransomware attack: system mapping, valuable file identification, data theft/encryption, and ransom note generation. The alarming aspect? The prototype costs roughly $0.70 per attack using commercial APIs, and open-source models eliminate this cost entirely. This drastically lowers the barrier to entry for ransomware attacks, posing a significant cybersecurity challenge. While an academic experiment, it highlights the potential for malicious AI use and underscores the need to address the emerging threat of AI-driven cyberattacks.

(www.tomshardware.com)

Tech

Areal: Are.na's Custom Typeface – A Revival of Arial

2025-08-27

Areal: Are.na's Custom Typeface – A Revival of Arial

Are.na, in collaboration with design studio Dinamo, unveils Areal, a custom typeface. Instead of a simple copy, Areal is a meticulously redrawn and rebuilt "revival" of Arial, based on its earliest internet version. This collaboration stems from a shared design philosophy and a deep exploration of Arial's history and cultural significance. Areal boasts technical improvements and dark mode optimization, enhancing user experience. The update acts as a refresh for Are.na, retaining its original style while incorporating modern design principles.

(www.are.na)

Design

Apple's AI Lags Behind Competitors, Benchmarks Reveal

2025-06-10

Apple unveiled updates to its AI models powering its intelligence features across iOS, macOS, and more. However, internal benchmarks show these models underperforming older rivals like OpenAI. Apple's 'Apple On-Device' model, running offline, performed comparably to, but not better than, similarly-sized models from Google and Alibaba. Its more powerful 'Apple Server' model lagged behind OpenAI's year-old GPT-4. Surprisingly, Meta's Llama 4 Scout outperformed Apple Server in image analysis, despite Llama 4 Scout's generally lower performance compared to leading models. These results support reports of Apple's AI division struggling to keep pace, explaining delays like the indefinitely postponed Siri upgrade and prompting lawsuits from dissatisfied customers. Despite this, the new models offer improved tool use and efficiency and support approximately 15 languages.

(techcrunch.com)

Tech

World's Smallest Pasta: A Breakthrough in Wound Dressing Technology

2025-02-22

World's Smallest Pasta: A Breakthrough in Wound Dressing Technology

Chemists at University College London, led by Adam Clancy, have unintentionally created the world's thinnest pasta – 'nanotini' – with an average diameter of 372 nanometers. This culinary accident is actually a significant advancement in wound dressing technology. Made from flour and formic acid, these starch nanofibers form mats with pores that allow water to pass through while blocking bacteria. The unique process involves dissolving flour in acid, then electrospinning the solution to create the incredibly thin fibers. While Clancy did indulge in a taste test (and noted it needed seasoning), this research holds immense promise for next-generation bandages.

(www.scientificamerican.com)

Tech wound dressing

Duolingo's AI Pivot Backfires: CEO's Damage Control Fails to Soothe Angry Users

2025-05-26

Duolingo's AI Pivot Backfires: CEO's Damage Control Fails to Soothe Angry Users

Duolingo CEO Luis von Ahn's announcement of an AI-first strategy, involving the dismissal of numerous contractors, sparked significant user backlash. His subsequent attempt at clarification on LinkedIn failed to address core concerns, further fueling the outrage. Von Ahn claimed AI will revolutionize workflows, necessitating proactive adaptation, contradicting his earlier emphasis on AI's vital role in Duolingo's growth. While denying plans to replace full-time employees, he overlooked the plight of contractors, highlighting Silicon Valley's common practice of using contract work to circumvent employee rights. The explanation ultimately failed to quell the anger, exposing growing tensions between tech companies and their users and raising ethical and social concerns surrounding AI implementation.

(htxt.co.za)

Startup PR Crisis

Linux Community: Fortress of Freedom or Cage of Exclusion?

2025-06-27

A blog post sparked a heated debate about inclusivity within the Linux community. The author shared a condescending and exclusionary comment criticizing their use of "Linux" instead of "GNU/Linux" and accusing them of trying to "dumb down" the system. The author counters that true "freedom" shouldn't come at the expense of marginalized groups, highlighting serious accessibility flaws in the Linux ecosystem. This ignited a discussion about community culture, the importance of inclusivity and accessibility, and respect for those who contribute to improving the system.

(fireborn.mataroa.blog)

Development

New CPU Vulnerability: Bypassing Privileges to Read Memory

2025-05-13

New CPU Vulnerability: Bypassing Privileges to Read Memory

Researchers at ETH Zurich have discovered a new CPU vulnerability that allows attackers to bypass user privilege protections and read memory contents at over 5000 bytes per second by exploiting ambiguities in the order of CPU instruction execution. This is not an isolated incident but part of a series of vulnerabilities exploiting speculative execution technologies, similar to the Spectre and Meltdown vulnerabilities of 2017. While Intel has implemented mitigations, this highlights fundamental flaws in the architecture, requiring ongoing patching efforts.

(ethz.ch)

Tech memory security speculative execution

Interstellar Object A11pl3Z Speeds Toward the Sun

2025-07-03

Interstellar Object A11pl3Z Speeds Toward the Sun

Astronomers have detected A11pl3Z, a potential interstellar object hurtling through our solar system. This could be only the third interstellar visitor ever observed, following Comet 2I/Borisov and 'Oumuamua. Estimated to be up to 20 kilometers across, A11pl3Z is approaching the inner solar system at a breakneck speed. It will make its closest approach to the sun on October 23rd and pose no threat to Earth. Scientists are eager to study this mysterious object using advanced telescopes like the James Webb Space Telescope to learn more about its origin and composition.

(www.livescience.com)

Tech

Async: AI-Powered Collaborative Coding Workflow

2025-08-27

Async: AI-Powered Collaborative Coding Workflow

Async is an open-source developer tool that combines AI coding, task management, and code review into one streamlined workflow. Integrating Claude Code, Linear, and GitHub PRs, it automatically researches coding tasks, executes code changes in the cloud, and breaks work into reviewable subtasks, handling the entire workflow from GitHub issue to merged PR. Async excels with mature codebases, enforcing upfront planning, eliminating context switching, simplifying task tracking, and providing built-in code review. Built with FastAPI, Claude Code, and Google Cloud Platform, it supports desktop and mobile.

(github.com)

Development

AI-Powered Weather Translation Halted, Jeopardizing Lives

2025-04-10

AI-Powered Weather Translation Halted, Jeopardizing Lives

The National Weather Service (NWS) has suspended language translations of its weather alerts, raising concerns that non-English speakers could miss life-saving warnings. The service paused translations due to a lapsed contract with AI translation company Lilt, which had been providing translations in multiple languages including Spanish, Chinese, and Vietnamese since late 2023. Experts highlight a case where translated warnings saved lives during a 2021 Kentucky tornado outbreak. The contract lapse coincides with budget cuts within NOAA, impacting staffing levels. Millions rely on non-English weather information; the suspension puts lives at risk.

(apnews.com)

Tech weather alerts language translation

Cassettes: Why Analog Still Matters in a Digital Age

2025-09-10

Cassettes: Why Analog Still Matters in a Digital Age

The author's audio setup consists of vintage equipment: Audio Innovations 2nd Audio monoblocks, a Series 1000 preamp, unique Wave Design speakers, and a Nakamichi RX-505E cassette deck. While technically inferior to digital streaming, this setup offers a unique listening experience. The author argues that the magic of cassette tapes lies in context: they evoke personal memories, emotions, and the cultural imprint of a specific era. The ritual of playing a tape, coupled with the music itself, creates a profound connection to the past, an immersion digital music struggles to replicate. This isn't about perfect sound quality; it's about a nostalgic experience, a connection to the past impossible to replicate digitally.

(www.differentshelf.com)

Misc cassette tapes

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