egri-nagy

https://mathstodon.xyz/@egrinagy

Programmer, mathematician, philosopher, violinist, circumstantial Go teacher, father of two. Hungarian-born Australian lost in the land of rice paddies. Enjoys putting out some solar panels and watching the amp meter.

Professor of #mathematics at Akita International University (retired #software engineer really).

First computer #C64, then #amiga, hence #retrocomputing.

#clojure #programming #coding #math #maths #education #science #philosophy #solar #solarpunk #computing

youtube: https://www.youtube.com/@egri-nagy
homepage: http://www.egri-nagy.hu
github: https://github.com/egri-nagy
codeberg: https://codeberg.org/egri-nagy/

Public Key

npub1snl2z5m3670tcpaxr4c0mudcnndadcu5ew8gua4kp8llf9qeeylsen6576

NIP-05 Address

egrinagy_at_mathstodon.xyz@momostr.pink

Profile Code

nprofile1qqsgfl4p2dca084uq7np6u8a7xufek7kuw2vhr5ww6mqnll5jsvuj0cprpmhxue69uhhyetvv9ujumt0d4hhxarj9ecxjmntqy28wumn8ghj7un9d3shjtnwdaehgu3wvfns9cfjdl

Publishing to

relay.momostr.pink

relay.nostr.bg

relay.damus.io

Author Public Key

npub1snl2z5m3670tcpaxr4c0mudcnndadcu5ew8gua4kp8llf9qeeylsen6576

Show more details

Published at

2026-04-17T07:31:35Z

Kind type

0 Metadata

Event JSON

{ "id": "d6ea2317d38c0be5727002dffe3d0e1faab0ee897c4c84adaee9751e9bb03bc8", "pubkey": "84fea15371d79ebc07a61d70fdf1b89cdbd6e394cb8e8e76b609fff49419c93f", "created_at": 1776411095, "kind": 0, "tags": [ [ "t", "math" ], [ "t", "maths" ], [ "t", "computing" ], [ "t", "programming" ], [ "t", "science" ], [ "t", "clojure" ], [ "t", "amiga" ], [ "t", "software" ], [ "t", "mathematics" ], [ "t", "education" ], [ "t", "philosophy" ], [ "t", "coding" ], [ "t", "c64" ], [ "t", "retrocomputing" ], [ "t", "solarpunk" ], [ "t", "solar" ], [ "proxy", "https://mathstodon.xyz/users/egrinagy", "activitypub" ], [ "L", "pink.momostr" ], [ "l", "pink.momostr.activitypub:https://mathstodon.xyz/users/egrinagy", "pink.momostr" ], [ "-" ] ], "content": "{\"name\":\"egri-nagy\",\"about\":\"Programmer, mathematician, philosopher, violinist, circumstantial Go teacher, father of two. Hungarian-born Australian lost in the land of rice paddies. Enjoys putting out some solar panels and watching the amp meter.\\n\\nProfessor of #mathematics at Akita International University (retired #software engineer really).\\n\\nFirst computer #C64, then #amiga, hence #retrocomputing.\\n\\n#clojure #programming #coding #math #maths #education #science #philosophy #solar #solarpunk #computing\\n\\nyoutube: https://www.youtube.com/@egri-nagy\\nhomepage: http://www.egri-nagy.hu\\ngithub: https://github.com/egri-nagy\\ncodeberg: https://codeberg.org/egri-nagy/\\n\",\"website\":\"https://mathstodon.xyz/@egrinagy\",\"picture\":\"https://media.mathstodon.xyz/accounts/avatars/109/521/487/376/666/513/original/648a1bb53ac47032.png\",\"banner\":\"https://media.mathstodon.xyz/accounts/headers/109/521/487/376/666/513/original/660f1242e96b531a.jpg\",\"nip05\":\"egrinagy_at_mathstodon.xyz@momostr.pink\"}", "sig": "d1133e7eac1b2441d5ce8ecad6596c9956f35425174f926ee5c6037a79785f6679173a033351ec03dfebc9f2b684e12fe91f2ff67e42466340d1615a8db905a6" }

Last Notes

2025-12-04 22:02:10 UTC

- reply

Oops! For me they're still different, I mean different types, as int, float, etc.

2025-11-27 01:09:13 UTC

"...one of the most important aspects of any computing tool is its influence on the thinking habits of those that try to use it,"
The Humble Programmer by Edsger W. Dijkstra, 1972 Turing Award Lecture
https://www.cs.utexas.edu/~EWD/transcriptions/EWD03xx/EWD340.html

2025-05-08 12:02:07 UTC

- reply

Not good. I want the computer to be "dumb but fast", as Feynman described the essence of computation.

2025-05-07 12:46:54 UTC

- reply

https://archive.org/details/1966-10_IF/page/6/mode/2up?view=theater
I was in the Zero camp, so this was a useful read. :)

2025-05-05 11:10:36 UTC

- reply

You are right, I went for the joke effect, and made the explanation short and edgy deliberately. It's a bit ironic that I take pride in crafting explanations in work, but with family, I do the exact opposite.
We went home and I leafed through his popular science book, where a small picture shows the Moon and the Earth with the exaggerated bulge of surface water. I showed it and he laughed again. "Ah, you were actually telling the truth!"
What you are saying, I will use in a following, more detailed conversation.

2025-05-05 10:37:09 UTC

Fun conversation with my son. We visited the same beach at different times the same day and he made an observation.
Son: The water level is different.
Me: Sure, that's the tide. You didn't know?!
Son: I didn't.
That got me thinking about the usefulness of schools... Then I suspected some difficulty in providing an explanation.
Me: Hey, I can tell you why the sea level changes, but you will not believe me.
Son: Tell me.
Me: The Moon moves the sea.
Son: (laughs out loud) Yes, that's indeed nonsense.

2024-09-28 12:13:28 UTC

Achievement unlocked.
I harvested rice with this machine.
https://media.mathstodon.xyz/media_attachments/files/113/215/108/721/922/970/original/5edb4602a8ef2849.jpg
https://media.mathstodon.xyz/media_attachments/files/113/215/114/954/720/911/original/cd215a579d19e0a8.jpg