Paul Masson

Independent mathematical physicist in San Francisco

https://analyticphysics.com
https://mathcell.org
https://paulmasson.github.io/math/docs/
https://paulmasson.github.io/mathcell/docs/

Public Key

npub1rl4jg7znvns95d5gwvl78daarp7h052xg8ppqrpqt9630jur8zns8sqn0m

NIP-05 Address

paulmasson@mathstodon-xyz.mostr.pub

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relay.ditto.pub

relay.snort.social

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Author Public Key

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Last Notes

2026-08-09 23:24:01 UTC

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@nprofile…lp9k not a Linux person? That surprises me.

2026-07-21 06:21:17 UTC

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@nprofile…2wsh I’ve always heard it called Our Lady of Maytag

2026-07-10 01:54:16 UTC

I’ve always thought that there is a curious difference between English and Chinese in their usage of words to describe the past. It now occurs to me that Old English might have some of the same characteristics as modern Chinese. Anyone on here know someone with a background in Old English who would enjoy bouncing around some ideas about time? Or a book that deals with this or related topics in Old English?
Please boost for visibility outside my scientific/technical circle. Thanks!
#english #oldenglish #chinese #language #time

2026-02-14 01:16:41 UTC

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@nprofile…gu9p I’ve read it several times. Great book!

2026-01-31 01:20:43 UTC

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@nprofile…8qh7 @nprofile…gu9p our minds are part of the universe, are they not?

2026-01-30 03:00:06 UTC

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@nprofile…lp9k checking in to see if your kit has arrived yet

2026-01-23 18:29:49 UTC

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@nprofile…lp9k have you received your kit yet? Mine arrives in February. Can’t wait!

2026-01-18 21:37:08 UTC

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@nprofile…lp9k somehow missed this project, but just put in a late pledge for the Advanced kit. Eager to get it! Any idea as to how quickly they ship?

2026-01-04 02:30:30 UTC

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@nprofile…4hp5 @nprofile…npxu Stephen Baxter does things like this in his Xeelee sequence. Especially rotating black holes.

2025-12-25 11:58:56 UTC

@nprofile…u6hy @nprofile…pwph Merry Christmas and thank you for keeping this forum going!

2025-12-20 17:00:07 UTC

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@nprofile…00p2 @nprofile…9s72 you forgot the most prolific scifi author of the period: L. Ron Hubbard!

2025-12-06 19:59:31 UTC

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@nprofile…stct you don’t have the entire series remastered for Blu-Ray?

2025-10-29 23:48:50 UTC

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@nprofile…9s72 started for me a few months back. Good reason to avoid the site. Prefer to read an article rather than watch a video.

2025-10-23 21:00:50 UTC

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@nprofile…stct Fibonacci numbers…

2025-05-19 22:35:28 UTC

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@nprofile…59k6 @nprofile…fa4k at least you’re not fussy about MathML like me…

2025-05-11 02:04:28 UTC

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@nprofile…5k3r if it's any help, some years ago I put together a presentation on evaluating geodesics on 2D surfaces:
https://analyticphysics.com/General%20Relativity/Visualizing%20Geodesics%20on%20Surfaces.htm
It might not be detailed enough for what you're trying to do, but at least you can see how to set up the problem if you don't already know.

2025-04-21 00:44:45 UTC

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@nprofile…saev if you evaluate
Table[n = k; Coefficient[g[x], x, n], {k, 0, 5}] // MatrixForm
you'll see the pattern. Mathematica apparently needs an explicit integer value for n.

2025-03-20 09:47:42 UTC

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@nprofile…yu7x has it occurred to you that cosmology isn’t really serious physics?

2025-02-17 20:50:17 UTC

https://www.nytimes.com/2025/02/12/technology/deepseek-ai-chip-costs.html?unlocked_article_code=1.xk4.i4QG.5BKS_8V7f62E&smid=url-share
#ai #ki #llm #neuralnet

2025-01-25 02:42:54 UTC

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@nprofile…fa4k @nprofile…y75c these two functions are special cases of Jacobi elliptic functions:
\[ \operatorname{sl}( z ) = \operatorname{sn}( z | -1 ) \hspace{3em}
\operatorname{cl}( z ) = \operatorname{dn}( z | 2 ) \]
And if you'd like to see visualizations in 3D, here you go:
https://paulmasson.github.io/math/docs/functions/lemniscateSin.html
https://paulmasson.github.io/math/docs/functions/lemniscateCos.html

2024-12-29 10:27:02 UTC

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@nprofile…yu7x but he’s not a bad looking fellow…

2024-12-23 00:06:24 UTC

This is so cool!
https://www.nytimes.com/2024/12/22/science/archaeology-seeds-gilead-sheba.html?unlocked_article_code=1.jk4.SDIM.hIsmpwQybC98&smid=url-share
#science #biology #bioscience #archeology

2024-12-08 20:20:21 UTC

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@nprofile…d92l @nprofile…xfmf FYI the building on the left is vistaEast, part of Gateway apartments.

2024-11-30 07:58:28 UTC

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@nprofile…6dp7 on a warm day in San Francisco I put my apartment door on its chain and prop it open with Gradshteyn and Ryzhik. Rare for apartments here to have air conditioning. And seldom look up integrals in books when Mathematica or the like is faster.

2024-09-08 23:29:57 UTC

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@npub1yq2…03wz Makepeace becomes a series regular

2024-08-24 21:15:30 UTC

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@npub1knz…c73p “very few solutions”? Only trivial ones…

2024-06-24 08:14:24 UTC

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@npub1c9m…9xjd there’s a cool movie version of this…

2024-05-10 04:46:36 UTC

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@npub1c9m…9xjd I had a typing class in 7th grade in Michigan. Glad it was generally required then. As well as a proper geometry class in 8th grade.