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Sam Ritchie
Personal blog · samritchie.io · on HN as sritchiemathprogramming
Sam Ritchie's personal blog at samritchie.io covers math and programming. Since 2015, 4 different Hacker News readers have linked it 7 times, most often “Dual Numbers and Automatic Differentiation”. The last post was in 2023, but the archive is still widely read.
Too few sampled comments (1) to say how often HN recommends it.?
Why HN links it
Linked as the site of Sam Ritchie, whose project is the Emmy computer algebra system. Comments point to his tech talks on computational physics, Emmy and explaining black-box AI predictions.
Summarised by Claude from a sample of 1 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Math, code, and adventure
Most-linked posts?
- Dual Numbers and Automatic Differentiation2 people · 2 mentions · first linked 2021-03-17
What Hacker News says?
Hey, this is Sam Ritchie's project! Here's some of his excellent tech talks: • "Computational Physics, Beyond the Glass" by Sam Ritchie (Strange Loop 2023) - YouTube: https://www.youtube.com/watch?v=Jv2JgzAl5yU • "Emmy: Moldable Physics and Lispy Microworlds" by Sam Ritchie - YouTube: https://www.youtube.com/watch?v=B9kqD8vBuwU • "Just-So Stories for AI: Explaining Black-Box Predictions" by Sam Ritchie - YouTube: ht…
Comment linking /spring-clips-and-stage-time/
on “The Emmy Computer Algebra System”Submitted Hardcore cascalog: dynamic queries as a story · 3 points
HN discussionIf you want to try a literate programming take on forward-mode automatic differentiation in Lisp (Clojure), check out the Differential implementation in my sicmutils library: https://github.com/sicmutils/sicmutils/blob/main/src/sicmuti... Here's the org-mode export of the file, with all TeX rendered: https://samritchie.io/dual-numbers-and-automatic-differentia... I worked on this with Gerald Sussman, and it has the…
Comment linking /dual-numbers-and-automatic-differentiation/
on “Automatic Differentiation: Forward and Reverse”Submitted Dual Numbers and Automatic Differentiation as a story · 2 points
HN discussionThank you, that's really nice to read. I really leaned in to these essay-style namespaces for this project; I spent _so_ much time deciphering old numerical algorithms ported from uncommented FORTRAN, and decided that I had to go the other direction. Someday I'll get around to publishing a static site that renders the math in the comments, like these: - https://samritchie.io/functional-numerical-methods (numerical i…
Comment linking /dual-numbers-and-automatic-differentiation
on “Polynomial Interpolation”Submitted Cascalog 2.0 in Depth as a story · 2 points
HN discussion