Top all-time · #2286
Gregory Gundersen
Personal blog · gregorygundersen.com/blog · on HN as gwgundersenmathdatascience
Gregory Gundersen's personal blog at gregorygundersen.com covers math, data and science. Since 2020, 31 different Hacker News readers have linked it 54 times, most often “Understanding Moments”. It is still writing: the last post was on 2026-09-19, and you can follow it by feed.
Too few sampled comments (10) to say how often HN recommends it.?
Why HN links it
HN readers link this research blog for math and statistics explainers, such as posts on the SVD and statistical moments, and it is also cited as an example of its blog theme and KaTeX use.
Summarised by Claude from a sample of 10 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Gregory Gundersen is a researcher in New York.
Most-linked posts?
- Understanding Moments3 people · 3 mentions · first linked 2023-10-15
- The First Ten Years3 people · 3 mentions · first linked 2025-01-31
- Problem Solving with Dimensional Analysis3 people · 3 mentions · first linked 2023-02-12
- Why I Keep a Research Blog2 people · 2 mentions · first linked 2020-01-13
- Brownian Motion2 people · 2 mentions · first linked 2026-09-20
- Understanding Positive Definite Matrices2 people · 2 mentions · first linked 2024-06-08
- /blog/2020/06/21/blog-theme/2 people · 2 mentions · first linked 2020-07-18
- A History of Large Language Models2 people · 2 mentions · first linked 2025-10-02
- Engineering Memory: On learning to memorize first 100 digits of pi (2024)2 people · 2 mentions · first linked 2024-12-22
What Hacker News says?
http://gregorygundersen.com/blog/
Comment linking /blog/
on “Ask HN: Favorite Blogs by Individuals?”Submitted Why I Keep a Research Blog as a story · 607 points
HN discussionhttps://gregorygundersen.com/blog/ Simple research blog on ML, stats, etc.
Comment linking /blog/
on “Ask HN: Share your personal site”Submitted A History of Large Language Models as a story · 301 points
HN discussionFor his css files try http://gregorygundersen.com/css/ Better still try his GitHub https://github.com/gwgundersen especially his notebook software https://github.com/gwgundersen/anno
Comment linking /css/
on “Why I Keep a Research Blog”Submitted An Intuitive Explanation of Black–Scholes as a story · 212 points
HN discussionThis seems to be a static site generator. http://gregorygundersen.com/blog/2020/01/12/why-research-blo... has a HTTP header last updated on 01/13/2020 04:34:31. http://gregorygundersen.com/blog/2019/12/23/random-fourier-f... is 01/13/2020 04:34:30, or 1 second earlier. Also the source code has a link to http://gregorygundersen.com/css/markdown.css which 404's.
Comment linking /css/markdown.css
on “Why I Keep a Research Blog”Submitted The Hierarchy of Money as a story · 187 points
HN discussionRe: the first sin, I was told to not invert matrices but never given a satisfying reason. So I wrote a blog post about it: http://gregorygundersen.com/blog/2020/12/09/matrix-inversion...
Comment linking /blog/2020/12/09/matrix-inversion/
on “Seven sins of numerical linear algebra”Submitted Proof of the Singular Value Decomposition as a story · 110 points
HN discussionhttps://gregorygundersen.com/blog/2020/06/21/blog-theme/
Comment linking /blog/2020/06/21/blog-theme/
on “A History of Large Language Models”Submitted Brownian Motion as a story · 74 points
HN discussionNot an application, but this my favorite explanation of SVD: http://gregorygundersen.com/blog/2018/12/10/svd/ It's such an important operation that I'd say understanding it changes how you understand a lot of linear algebra. That Kun post is also good.
Comment linking /blog/2018/12/10/svd/
on “Why is it important for a matrix to be square? (2018)”Submitted Why Backprop Goes Backward (2018) as a story · 70 points
HN discussionI (shamelessly) stole the layout from Gregory Gundersen's wonderful research blog ( https://gregorygundersen.com/blog/ ). He has instructions on how to replicate it here https://gregorygundersen.com/blog/2020/06/21/blog-theme/
Comment linking /blog/2020/06/21/blog-theme/
on “Entropy: An Introduction”Submitted Engineering Memory: On learning to memorize first 100 digits of pi (2024) as a story · 67 points
HN discussionhttps://gregorygundersen.com/blog/2020/04/11/moments/
Comment linking /blog/2020/04/11/moments/
on “Understanding Gaussians”Submitted Blockchain in 19 Lines of Python (2021) as a story · 15 points
HN discussionI didn't implement a CNN from scratch, but a few years ago, I wrote a blog post on CNNs [1] because, like the other commenters, I could find almost no decent blog content on what exactly a CNN was. Maybe it will help in your efforts. [1] http://gregorygundersen.com/blog/2017/02/24/cnns/
Comment linking /blog/2017/02/24/cnns/
on “Introduction to Convolutional Neural Networks”Submitted A History of Large Language Models as a story · 7 points
HN discussionThis article is a bit rough around the edges, and they really should make it clear when they mean "pseudorandom" vs "random", especially when one goal of the article is ostensibly to explain pseudorandomness to laymen! As an aside, using a source of random numbers to generate other random objects is quite an interesting problem! For converting from one probability distribution to another, we have classical methods l…
Comment linking /blog/2018/04/29/reparameterization/
on “How and Why Computers Roll Loaded Dice”Submitted How Dangerous Is Biking in New York? as a story · 5 points
HN discussionGreg's blog is a great example of Katex in the wild: http://gregorygundersen.com/
Comment linking /
on “The fastest math typesetting library for the web”Submitted Why Metropolis–Hastings Works as a story · 4 points
HN discussionIf anyone was frustrated like me on this concept of "moments" I found the following insightful and fascinating: https://gregorygundersen.com/blog/2020/04/11/moments/ I have no idea how I got through undergrad and graduate school without internalizing this concept that seems so foundational. Whacky
Comment linking /blog/2020/04/11/moments/
on “Kalman Filter Tutorial: Kalman Filter from the Ground Up”Submitted Brownian Motion as a story · 3 points
HN discussionSubmitted Why Shouldn't I Invert That Matrix? (2020) as a story · 3 points
HN discussionSubmitted Research and Adventure as a story · 3 points
HN discussionSubmitted Problem Solving with Dimensional Analysis as a story · 2 points
HN discussionSubmitted The First Ten Years as a story · 2 points
HN discussion
