Eli Bendersky's website

1 Oct 2026

• "Wuthering Heights" by Emily Brontë - good writing, but the protagonists are quite something. There's barely a likable character in the whole story - they are all either crazy, evil, stupid or a

26 Sep 2026

Like many programmers, I find Alexis King's Parse, don't validate (https://lexi-lambda.github.io/blog/2019/11/05/parse-don-t-validate/) article fascinating, because it gives a name to an idiom that

19 Sep 2026

• The following are my notes on discrete-time Fourier series (DTFS), as well as the discrete-time Fourier transform (DTFT). These topics serve as an important theoretical underpinning to the

28 Aug 2026

The other day, I found myself wondering how big 52! (52 factorial) is, and that led me to ponder how these could be estimated without a calculator or a computer. It turns out there’s some fairly

22 Aug 2026

This is part 8 in a series of posts on writing concurrent network servers. In this part, we'll switch to Go and see how it tackles the challenges described earlier in the series. All posts in the

15 Aug 2026

This is part 7 in a series of posts on writing concurrent network servers. In this part, we discuss how the challenges described in earlier parts are tackled in the Rust programming language. All

4 Aug 2026

In Physics simulations or game engines it’s sometimes useful to determine the speed with which two objects are approaching each other. This post will discuss the concept of closing speed, which is

15 Jul 2026

• The Fourier series is a great tool for analyzing periodic functions. But what about functions that don’t repeat? We’ve seen (https://eli.thegreenplace.net/2026/notes-on-fourier-series/) that

11 Jul 2026

The goal of this post is to answer a simple question: why are the following two definitions of the vector dot product in Euclidean space [1] (#footnote-1) equivalent for vectors \vec{a} and \vec{b}:

1 Jul 2026

• "The Nuremberg Trial" by John Tusa and Ann Tusa - a detailed, meticulously researched account of the Nuremberg Trials. There's not a whole lot of side questing in this book - it's all focused on

14 Jun 2026

Recently I came upon Pluggy (https://pluggy.readthedocs.io/en/latest/), a Python library for developing plugin systems. It was originally developed as part of the pytest project - known for its rich