Recent submissions

Comment · 3 months ago
Space filling curves can be used to compute good TSP tours in O(n log n) time and linear space.

This describes an implementation using a Rolodex to plan Meals on Wheels routes.

Comment · 8 months ago
The screenshot was to demonstrate what blocked posts look like. I scrolled past the posts of my friends since I didn't want to dox them, but organic posts do show up near the top of my feed.

The goal isn't to scroll through nothing, but rather have a clean feed that shows me just my friends and nothing else.

Comment · 1 year ago
OSHPark is US-based and they have excellent service.
Comment · 2 years ago
Hi HN,

I've been increasingly frustrated by the limitations of standard number inputs, especially when dealing with large values or numbers with units. Most applications simply provide a basic number box, which falls short in many scenarios.

To address this, I've created SiMin, a lightweight format for writing and parsing big numbers using SI prefixes with an emphasis on readability.

I'd love to hear your thoughts on this!

Comment · 2 years ago
Thanks for reading!

> What are some use cases for FAST?

The FAST feature detector is an algorithm for finding regions of an image that are visually distinctive, which can be used as a first step in motion tracking and SLAM (simultaneous localization and mapping) algorithms typically seen in XR, robotics, etc.

> Is there TPU-like functionality in anything in this price range of chips yet?

I think that in the case of the ESP32-S3, its SIMD instructions are designed to accelerate the inference of quantized AI models (see: https://github.com/espressif/esp-dl), and also some signal processing like FFTs. I guess you could call the SIMD instructions TPU-like, in the sense that the chip has specific instructions that facilitates ML inference (EE.VRELU.Sx performs the ReLU operation). Using these instructions will still take away CPU time where TPUs are typically their own processing core, operating asynchronously. I’d say this is closer to ARM NEON.

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