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Programmer's guide to polynomials and splines
This is a brief introduction into polynomials. From how to make a polynomial run through your set of points to how to make it into a spline.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 2,330 posts.
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Kaggle Learn review: there is a deep learning track and it is worth your time
Right from my undergrad days when I was starting out with machine learning to this date, my admiration for Kaggle continues to grow. In addition to being synonymous with and popularizing data scien…
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State of web browsers in 2018
Late 2018 edition
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The DisplayPort Pin 20 Problem
When you read up on the DisplayPort connector in the VESA specification, it will show that both the source and the sink are supposed to provide power at 3.3V+-10% and 500mA on the DP_PWR pin, pin 20, of the connector.
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KDE Connect 1.10 released
Today we released version 1.10 of the KDE Connect Android app. Therefore it’s time again to share what we’ve been working on. Targeting Android Oreo As of this month app updates uploade…
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How Does setState Know What to Do?
Dependency injection is nice if you don’t have to think about it.
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What happens when you grep the file you've redirected grep to?
I was recently eating lunch with someone who asked a question that I became somewhat obsessed with: what happens when you grep a file and append the contents...
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Attacking Merkle Trees with a second preimage attack
Hacking, hardware, software, and general curiosities of computing machinery! Docendo discumus.
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Reinforcement Learning – Bandit Problems
Table of Contents
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An Introduction to Cache-Oblivious Data Structures
If you read my recent post about Postgres you may have noted that Postgres operates primarily with fixed-size blocks of memory called “pages.” By default, Postgres pages are 8KB. This number is tuned to match operating system page sizes which are tuned to match hardware cache sizes. If you were to run Postgres on…
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Mapping the internet with Hilbert curves
The internet is big. Really big . You just won’t believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think the /22 you got as a LIR was big, but that’s just peanuts to the internet.
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Advice
Every now and again, someone emails me and asks for very general advice. ("How do I change the world?") With the caveat that I've only lived a fraction of one life, and am still trying to figure things out, here's the advice I'd give past me.
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Death of the sampling theorem?
tl;dr: A team from Columbia University led by Ken Shepard and Rafa Yuste claims to beat the 100 year old Sampling Theorem [1,2]. Apparently anti-aliasing filters are superfluous now because one can…
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Meltdown and Spectre Linux Kernel Status
I keep getting a lot of private emails about my previous post about the latest status of the Linux kernel patches to resolve both the Meltdown and …
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GitHub shouldn't allow username reuse
Update 2018-04-19 - GitHub has implemented some rules around retiring "namespaces".
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Massachusetts gas fires: Another technological tragedy
One Thursday afternoon last month, dozens of fires and explosions rocked three towns along the Merrimack River in Massachusetts. By the end of the day 131 buildings were damaged or destroyed, one person was killed, and more than 20 were injured. Suspicion focused immediately on the natural gas system. It looked like a…
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Machine learning can run on tiny, low-power chips
Photo by Kevin Steinhardt When Azeem asked me to give a talk at CogX, he asked me to focus on just a single point that I wanted the audience to take away. A few years ago my priority would have bee…
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Building your own shell using Rust
This is a tutorial on building your own shell using Rust, in the spirit of the build-your-own-x list. Creating a shell is a great way to understand how the shell, terminal emulator, and OS work together.
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Making Direct3D games faster in Wine using modern OpenGL
I play World of Warcraft . Being a Linux user requires me to run this in Wine , a Windows API translation layer. While Wine is continuously improving, its performance in Direct3D games still leaves much to be desired.
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The HP-35: Consumer Electronics, an Origin Story
Ault and Wiborg’s art nouveau poster ads.
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Apple in China: who holds the keys?
Last week Apple made an announcement describing changes to the iCloud service for users residing in mainland China. Beginning on February 28th, all users who have specified China as their country/r…
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Zero-Overhead Tree Processing with the Visitor Pattern
The Visitor Pattern is one of the most mis-understood of the classic design patterns. While it has a reputation as a slightly roundabout technique for doing simple processing on simple trees, it is actually an advanced tool for a specific use case: flexible, streaming, zero-overhead processing of complex data…
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