2023lctgmeetingchats
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
2023lctgmeetingchats [2023.12.06 09:38] – Steve Isenberg | 2023lctgmeetingchats [2024.01.10 08:43] (current) – Steve Isenberg | ||
---|---|---|---|
Line 4: | Line 4: | ||
These are a record of the chats that were passed during meetings in 2023. They have been edited to a small extent.\\ | These are a record of the chats that were passed during meetings in 2023. They have been edited to a small extent.\\ | ||
To find chats for a given day, for example July 19, 2023, search for datecode 20230719 (2023, month 07, day 19). | To find chats for a given day, for example July 19, 2023, search for datecode 20230719 (2023, month 07, day 19). | ||
+ | |||
+ | ====20231220==== | ||
+ | ===Potpourri=== | ||
+ | Videos on Feynman and Computing Pi | ||
+ | <WRAP prewrap> | ||
+ | < | ||
+ | 08:31:54 From Barry Kort to Everyone: | ||
+ | Syncthing. | ||
+ | 08:32:01 From tedpk to Everyone: | ||
+ | Adam Adamandy Kochanski’s approximations of ´ π: | ||
+ | reconstruction of the algorithm ∗ | ||
+ | Henryk Fuks´ | ||
+ | Department of Mathematics and Statistics, | ||
+ | Brock University | ||
+ | St. Catharines, Ontario L2S 3A1, Canada | ||
+ | Toronto, Ontario M5T 3J1, Canada | ||
+ | Email: hfuks@brocku.ca | ||
+ | Abstract | ||
+ | In his 1685 paper “Observationes cyclometricae” published in Acta Eruditorum, Adam | ||
+ | Adamandy Kochanski presented an approximate ruler-and-compass construction for rectifi- ´ | ||
+ | cation of the circle. It is not generally known that the first part of this paper included an | ||
+ | interesting sequence of rational approximations of π. Kochanski gave only a partial explana- ´ | ||
+ | tion of the algorithm used to produce these approximations, | ||
+ | at a later time, which has never happened. We reconstruct the complete algorithm and discuss | ||
+ | some of its properties. We also argue that Kochanski was very close to discovery of continued ´ | ||
+ | fractions and convergents of π. | ||
+ | 08:37:26 From Barry Kort to Everyone: | ||
+ | Note: | ||
+ | </ | ||
+ | </ | ||
+ | [[lexingtoncomputergroup|return]] | ||
+ | |||
+ | ====20231213==== | ||
+ | ===Planning meeting=== | ||
+ | <WRAP prewrap> | ||
+ | < | ||
+ | 08:21:25 From tedpk to Everyone: | ||
+ | Quantum Fields: The Real Building Blocks of the Universe - with David Tong 6,065,075 views Feb 15, 2017 | ||
+ | According to our best theories of physics, the fundamental building blocks of matter are not particles, but continuous fluid-like substances known as ' | ||
+ | |||
+ | David Tong is a professor of theoretical physics at Cambridge University, specialising in quantum field theory.https:// | ||
+ | 08:25:09 From Barry Kort to Everyone: | ||
+ | Brian Greene “World Science Festival” | ||
+ | 08:27:59 From tedpk to Everyone: | ||
+ | BBC The Entire Universe 2016 | ||
+ | 7 years ago | ||
+ | Eric Idle persuades Professor Brian Cox to present a lecture on the birth of the entire universe. Brian soon realises Eric is actually hosting a comedy and musical extravaganza. | ||
+ | |||
+ | Aired December 26th 2016 BBC2. . https:// | ||
+ | 08:38:53 From John Rudy to Everyone: | ||
+ | https:// | ||
+ | 08:41:31 From Barry Kort to Everyone: | ||
+ | Newton and Pi on “Veritasium” (18 minutes) ~ https:// | ||
+ | </ | ||
+ | </ | ||
+ | [[lexingtoncomputergroup|return]] | ||
====20231206==== | ====20231206==== |
2023lctgmeetingchats.1701884326.txt.gz · Last modified: 2023.12.06 09:38 by Steve Isenberg