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Mathematical marketing: a piece of calculus to change the way you advertise
If you make $10 profit each time you sell a product, what cost per conversion should you aim for? Answering this question isn't easy, but it can teach us a…
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 3,290 posts.
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An Overview of Bayesian Inference (2019)
A few weeks ago I wrote about Kuhn’s theory of paradigm shifts and how it relates to Bayesian inference. In this post I want to back up a little bit and explain what Bayesian inference is, and eventually rediscover the idea of a paradigm shift just from understanding how Bayesian inference works.
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How many registers does an x86-64 CPU have?
x86 is back in the general programmer discourse, in part thanks to Apple’s M1 and Rosetta 2 . As such, I figured I’d do yet another x86-64 post.
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Don’t Be Afraid of RAID
I sense this sentiment on the internet that RAID is dangerous, that the likelihood of your RAID array failing during a rebuild is almost a certainty, because hard drives have become so large.
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Poor evidence that Q-tips are harmful
Disclaimer: I am not a doctor; even if I’m 100% right in my argument and you are 100% convinced by it, you shouldn’t listen to me over actual doctors; it’s a bad habit that might actually kill you.
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Reasons to Learn Redux as a JavaScript Developer
Redux greatly shaped how we develop modern JavaScript applications nowadays. Here I want to give a walkthrough on all the mindset changes we went through as JavaScript developers ...
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Division by zero in type theory: a FAQ
How can a theorem prover use the convention that 1/0=0 and still be consistent?
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My Favorite Shortcuts for JetBrains' IDEs
JetBrains, the makers of the popular IntelliJ IDEA, offer a range of powerful IDEs for all kinds of programming languages. I would like to share my favorite shortcuts for their IDEs.
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CQRS: Command Query Responsibility Segregation (2011)
CQRS (Command Query Responsibility Segregation) is the notion that you can use a different model to update information than the model you use to read information
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CuPy Accelerates NumPy on the GPU? Hold My Cider, Here's Clojure
Everyone knows that Java is slow and Clojure is not a great choice for number crunching, but as soon as I dig anywhere with my software, I discover that the ...
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Feature Casualties of Large Databases
Databases shed important RDMS features as they get big. Examining why this tends to be the case, and some ideas for preventing it.
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Bread, How Did They Make It?
Bret Devereaux (A Collection of Unmitigated Pedantry)2020120 points32 commentscited by 30History & Retro Computing details
Thanks to our helpful volunteer narrator, this entire post series is now also available in audio format! This essay will hopefully be the first post in a series (II, III, IV, A) covering some of th…
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Curl will now output JSON
This is not a command line option of the week post, but I feel a need to tell you a little about our brand new addition! --write-out [format] This option takes a format string in which there are a number of different "variables" available that let's a user output information from the previous transfer. For … Continue…
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Python Generated Sequence Diagrams
Understanding a system or software architecture simply, truly, absolutely, undoubtedly requires an occasional sequence diagram. I left ...
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The Hyperbezier Pen Tool
Introduction
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Lisp: Good News, Bad News, How to Win Big (1991)
Lisp has done quite well over the last ten years: becoming nearly standardized, forming the basis of a commercial sector, achieving excellent performance, having good environments, able to deliver applications. Yet the Lisp community has failed to do as well as it could have. In this paper I look at the successes, the…
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Asterisk
Challenged to write about a single Unicode character, I chose the humble asterisk. In this post, Julia takes a back seat but it’s working hard behind the scenes. [1] The font used for the examples is JuliaMono.
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Pilo: Raspberry Pi-Powered Lights-Out Remote Server Management
The completed Pilo controller, before final installation. The USB capture card and Arduino Nano USB serial are soldered to the underside of the 3B+.
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Actix Web: Optimization Amongst Optimizations
It’s already been a great reading day for retrospectives on the last ten years / predictions for the next. Here’s to hoping that everyone had a good break (or at least a few days off), set or didn’t set resolutions, and is refreshed and ready for what comes next.
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Combinatris: Tetris with SKI Combinators
Combinatris
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GitHub Won’t Help You with Hiring
One of the things I'm working on right now is a project that's aggregating data found in developers GitHub profiles. Since there are a couple of problems with using GitHub profiles as a data source like this, I wanted to first list out some of the issues I have with trying to assess developers by looking only at their…
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I can't believe I'm praising Tcl (2008)
So the other day I both defined Tcl procedures all by myself and used them interactively, and I liked it, to the point where it felt like some kind of local optimum. This entry is an attempt to cope with the trauma of liking Tcl, by means of rationalizing it. I'll first tell the story of my fascinating adventures, and…
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Starting a Business Around GPT-3 Is a Bad Idea
(Update 2023-03: I wrote this in 2020 when GPT-3 was highly hyped, but ultimately made only <1% of the splash that the monstrous ChatGPT made 3 years later. If I had to rewrite this today, I’d 1) think more kindly about defensibility, especially through deep product, user experience, and marketing/distribution (see…
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Syntax changes from C++11 to C++20
Let’s start the week with Lambda Expressions. The plan is to have a set of concise articles presenting core elements of lambda expressions. Today you can see how the syntax has evolved starting since C++11 and what are the latest changes in C++20. The Series This blog post is a part of the series on lambdas: