Viewing profile — joppy

The commenter says pre-rendered/server-side-rendered mathematics (via katex) is great - I’ve found the opposite. It’s probably great if you have an article with one or two equation…

“Pixi instead of uv” would be a more fair comparison, as Pixi is a more modern tool which still uses the conda package format and ecosystem, much like uv is a modernised pip which …

Title: this is about the geometric Langlands, not Langlands. They are related but in separate fields.

If a country has the capability to "lock down ports", they're probably shipping ports - do you think Australia is just suddenly going to (or has the capability to) block all IP tra…

Thanks for making this! I’ve found that as a pedestrian in Sydney, up to half my walking time is spent waiting for traffic lights, and have always wondered what could be done about…

Use pipx. It works well.

The compare-how-big-a-lookup-table-is argument is a bit of a red herring for comparing how complex things are. For example, a 3x3 matrix implements a map from 3 floats to another t…

The Mazda software works ok with the wheel, but using something like CarPlay with it is almost impossible without taking your eyes off the road for a long time. It’s worse than tou…

SQLite is so modular that someone could write a replacement for the filesystem layer that ended up sending requests across HTTP to query a database on another server [1]. Without t…

There a lots of tiny issues: some UI settings like rulers (or whatever PyCharm calls them, vertical guides that tell you when you’re at 100 chars or something) just don’t work, and…

The IntelliJ git interface makes a lot of sense, and makes many helpful operations easy, like “compare what I have now to this particular commit”. The VSCode git interface, even wi…

I hope they also worked on removing the many UI bugs from PyCharm remote: laggy scrolling while in the diff view, some editor settings like rulers at 100/120 chars not working prop…

At LAN parties we used to share our SteamApps folders so that others could copy games across. Interestingly (perhaps due to Windows networking handling copy-many-small-files poorly…

Unfortunately it doesn’t work so well with some larger games. I tried backing up a 120GB up-to-date game, uninstalling and reinstalling steam (to a newly purchased drive), and relo…

That’s a preprint - check the published version https://dl.acm.org/doi/10.1145/176584.176586 which has a date on the front page of the article.

Single-variable letters and suggestive notation make it easier to recognise patterns, and give a good level of abstraction at which thinking about the problem rather than muddling …

Here in sunny Sydney, US$260k would cover the salary of three good developers, or two exceptional developers.

My point is not that it’s impossible to write fast JavaScript, it is that creating performant abstractions is very hard in JavaScript. So performant code ends up not using many abs…

The 4x4 represents both a 3x3 matrix A and a translation t, so that the “affine transformation” applied to a vector is v -> Av + t. One could pass around pairs (A, t) instead, and …

Mathematicians index the ith row and jth column of their n x m matrix as (i, j), which is nothing to do with row-major or column-major order. Those orderings are how a two-dimensio…

On the flip side, it’s very hard (sometimes impossible) to make highly performant abstractions in JavaScript, which makes it difficult to make fast tools which do complex work. Mos…

As I commented elsewhere, the headjoint of a flute significantly affects the sound quality and timbre, and spending $2800 on a headjoint (even a standard one) is expensive, but sti…

The headjoint of a flute is a key part which significantly affects the sound quality and timbre of the instrument - it is by no means an “adapter” to the rest of the instrument. It…