Top all-time · #2741
Nosferalatu
Personal blog · nosferalatu.commathgamesprogramming
Nosferalatu is a personal blog at nosferalatu.com about math, games and programming. Since 2020, 7 different Hacker News readers have linked it 13 times, most often “Derivatives and Logarithms of 3D Transforms”. No feed was found, so read it on the site itself.
Nosferalatu
Most-linked posts?
- Derivatives and Logarithms of 3D Transforms3 people · 6 mentions · first linked 2023-02-08
- /DerivativesLogarithmsTransforms.html2 people · 2 mentions · first linked 2024-01-29
What Hacker News says?
So performance would increase since hashing is faster than binary-searching. However, the problem of collisions across threads and dealing with concurrent map key insertions still remains. e.g. when two different cities produce the same hash (one at each thread), how can we atomically compare 100 byte city strings and correctly do collision-solving (using linear probe, for example - https://nosferalatu.com/SimpleGPU…
Comment linking /SimpleGPUHashTable.html
on “The One Billion Row Challenge in CUDA”Submitted Show HN: A Simple GPU Hash Table as a story · 119 points
HN discussionThe previous post in the series[1], helpfully linked to in the introduction, has a lot more details of the underlying concepts. It also set my mind wandering to the not-technically-related functional derivatives[2], where you vary the function slightly rather than the argument value. I'm not great at math, but I do love this what-if exploration you can do in math. Due to the various proofs underlying it all it seems…
Comment linking /DerivativesLogarithmsTransforms.html
on “Higher Order Derivatives of Transforms”Submitted Derivatives and Logarithms of 3D Transforms as a story · 105 points
HN discussionDon't think I'll ever get used to stars in LaTeX when someone means simple multiplication. The preceding blog post[1] seems to contain the more interesting parts though. This is just (d/dt)^n e^At x = A^n e^At x, which is kind of obvious from the definition of e^At. [1]: https://nosferalatu.com/DerivativesLogarithmsTransforms.html
Comment linking /DerivativesLogarithmsTransforms.html
on “Higher Order Derivatives of Transforms”Submitted Higher Order Derivatives of Transforms as a story · 87 points
HN discussionSubmitted Laplacian Mesh Smoothing by Throwing Vertices as a story · 42 points
HN discussionSubmitted Laplacian Mesh Smoothing by Throwing Vertices as a story · 2 points
HN discussionSubmitted Moving Points with Logarithms and Derivatives as a story · 2 points
HN discussionSubmitted Derivatives and Logarithms of 3D Transforms as a story · 1 points
HN discussionSubmitted What's the Logarithm of a 3D Transform? as a story · 1 points
HN discussionSubmitted Derivatives, Logarithms, and Transforms as a story · 1 points
HN discussionSubmitted Derivatives, Logarithms, and Transforms as a story · 1 points
HN discussion