jasmcole

8 ms·

1.
by jasmcole 1mo ago
The fastest path involves a small dip, though deriving that fact is non-trivial! Here's one of my old blog posts where I do the derivation: https://jasmcole.com/2020/04/13/briechistochrone
2.
by jasmcole 2mo ago
I'm in Busan, though I didn't feel anything. (I was on the beach at the time though.)
3.
WebGPU simulation of a magnetic table clamp(jasmcole.com)
1 points by jasmcole 4mo ago|0 comments
4.
by jasmcole 1y ago
We use the WASM build of DuckDB quite extensively at Count ( https://count.co - 2-3m queries per month). There are a couple of bugs we've noticed, but given that it's pretty much maintained by a single person seems impr
5.
by jasmcole 2y ago
Wow! I just checked your CV (we were at Cambridge at the same time :) ), and I will never dismiss a Geography degree again!
6.
by jasmcole 2y ago
Hey, if you click through to one of the example simulations you'll be able to change the visualization from waves to time-averaged power density, which should be closer to what you're looking for.
7.
by jasmcole 2y ago
Thanks! If you navigate to one of the example simulations, you'll be able to change the instantaneous field visualisation to one of time-averaged power density, which sounds closer to what you're looking for. The cool thing about
8.
by jasmcole 2y ago
Interesting! I have a desktop 3070 and hear the same. I don't hear anything on a Mac M1 though.
9.
by jasmcole 2y ago
Definitely the vibe I'm going for!
10.
by jasmcole 2y ago
Good question! This is actually a numerical solver for a few coupled partial differential equations - the method in this context (electromagnetism) is called FDTD. It's implemented as a WebGPU compute shader. You absolutely could do t
11.
by jasmcole 2y ago
Agreed! Though support should be coming soon it seems. As a complete WebGPU novice I was really impressed with how quick it was to get going.
12.
by jasmcole 2y ago
See also the blog post here discussing this project: https://jasmcole.com/2024/10/18/a-decade-of-wifi/
13.
WebGPU-Based WiFi Simulator(wifi-solver.com)
335 points by jasmcole 2y ago|84 comments
14.
by jasmcole 2y ago
Author here - amazing how this old post comes back around! I know this book is a bit divisive with the big time jump, but you can't argue with the opening line. Shameless plug - I've become a better engineer since then, and if you
15.
by jasmcole 2y ago
If you're interested in a mix of SQL, Python, DuckDB and low-code interfaces to SQL databases, you may want to check out https://count.co
16.
by jasmcole 2y ago
https://count.co perhaps?
17.
by jasmcole 2y ago
We use Pyodide at https://count.co and think it's pretty amazing! Congrats on the new release. I read about the snapshot support for Cloudflare workers and assumed it was a feature that Cloudflare had developed - the fact i
18.
by jasmcole 3y ago
Thanks for the heads up - a page more focussed on dbt specifically is here: https://count.co/product/data-modeling/ and associated blog post: https://count.co/blog/how-we-made-data-modeling-mu
19.
by jasmcole 3y ago
If you're interested in interrogating dbt models using DuckDB, you may be interested in some new dbt features we've recently released at https://count.co
20.
Show HN: Multiplayer Data Modeling(count.co)
3 points by jasmcole 3y ago|0 comments
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by jasmcole 3y ago
We settled on DuckDB as our in-browser DB at count.co - it's been great! Just waiting for extensions and compression in the WASM build now...
22.
by jasmcole 3y ago
Me too! Other recent gadgets that have scratched the same itch are the Steam deck and folding phones, though nothing quite captures the feeling of the gadget experimentation going on back then.
23.
by jasmcole 3y ago
Nice! I made a quick'n'dirty Typescript notebook with React + Plotly as a Matlab clone a few years ago. I was impressed with how everything you need to compile and execute TS was built-in to Monaco, using web workers etc. https:&
24.
A SQL Christmas Tree(count.co)
5 points by jasmcole 4y ago|1 comments
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by jasmcole 4y ago
Merry Christmas HN!
26.
by jasmcole 5y ago
We implemented a WebGL plot + text renderer for https://count.co - adding support for emoji was a pain. In particular you can't use normal SDF maps as for other monochrome characters, so there has to be a per-character flag
27.
by jasmcole 5y ago
Nice article! When we wrote the instanced WebGL line renderer for https://count.co one of the tricky parts was switching between mitre and bevel joins based on the join angle - for very acute angles the mitre join shoots off to
28.
by jasmcole 5y ago
I wrote that - thanks! Somehow it ranks highly on Google, but there are some links at the bottom to some other (better!) posts that I read first.
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by jasmcole 6y ago
Those interested in SQL notebooks can also check out https://count.co
30.
by jasmcole 6y ago
What a great blog you have! I'm interested that your path to a research position occurred via game development. Is that common? (I've subscribed to your feed, the combination of topics you cover is uncannily similar to my own inte

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