David Bremner

computer scientist, mathematician, photographer, human. Debian Developer, Notmuch Maintainer, Scuba Diver, #nobot

Public Key

npub1pdvy00xwyk4mcshlj9p76jfrfjesa2u7urxrjlyd9tenffrlfkasesz8zn

NIP-05 Address

bremner@mathstodon-xyz.mostr.pub

Profile Code

nprofile1qqsqkkz8hn8zt2augtlezsldfy35evcw4w0wpnpe0jxj4ue553l5mwchdx70j

Author Public Key

npub1pdvy00xwyk4mcshlj9p76jfrfjesa2u7urxrjlyd9tenffrlfkasesz8zn

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Last Notes

2025-01-07 16:54:32

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@nprofile…zwgs Note to self: do not try to out-nerd Christine.

2025-01-07 16:14:41

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@nprofile…zwgs metric or imperial minute?

2025-01-04 12:17:43

Dear #cdrama experts;
I'm confused about one character [1] in #Double. Who is the palace insider (woman) who keeps showing up plotting with Jian Li's stepmother (e.g. at the end of Ep. 13). Is that Consort Li? What is their connection? If possible without too many spoilers, thanks!
[1]: I'm confused about a fair number of things, but for some reason this one is bugging me.

2024-12-07 17:21:22

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@nprofile…vtn3 In the camera world the problem is arguably worse; batteries are not even consistent between models from the same manufacturer. I think they must have something like a 5x markup on batteries and chargers.

2024-11-26 14:44:11

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@nprofile…2hju @nprofile…uvtl more dimensions would be OK, but less dimensions definitely sounds like a hostile workplace.

2024-11-26 11:01:51

Shout out to @nprofile…lwgl , whose previous toot made me stop and think before complaining about a come-from-away student's "fancy" vocabulary.

2024-11-01 18:17:27

"With this knowledge, you are now ready to go launch a big-data startup company."
@npub1sys…ckr3 You know they don't understand sarcasm, right?

2024-10-27 14:14:48

Given a decision problem Π, I need a name for the polytope constructed by taking the convex hull of the characteristic vectors (or binary inputs of fixed length) corresponding to "yes" instances. If nobody has a better suggestion I might use "the characteristic polytope of Π". OTOH, for $reasons I'd much rather use something more standard / widespread.
#ComputationalComplexity #Polytope

2024-10-07 10:23:52

Reading the manual of my new #Shearwater dive computer before class, as one does, and I noticed a note "Color Blind Users:"
The warning or critical warning states can
be determined without the use of color
Color blind users
Warnings display
on a solid inverted
background
Critical Warnings flash
between inverted and
normal text
The note is illustrated with gray scale pictures.
I'm not color blind (that I know about), but I appreciate the attention to #accessibility.
#SCUBA

2024-09-06 18:12:43

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@npub1h9t…k4am This might be a new thing for the non-crowdfunded ones.

2024-09-06 15:45:42

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@npub1h9t…k4am OOC, which CPU/GPU Module did you go for?

2024-08-12 19:11:46

Can anyone suggest a good textbook for a VM's and JIT compilation course? You might think that would be too specialized for textbooks, but you'd be wrong. I like Smith and Nair book a lot, but it's almost 20 years old now, and uh, one or two things have happened. #VirtualMachines #JustInTimeCompilation #TextBook

2024-06-15 12:25:04

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@npub1sys…ckr3 Wait, I'm still in that long bygone era. What did I miss?

2024-06-14 19:19:30

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@npub10et…r80k No, it's not. According to someone-who-should-know, it's intended to be a "factory reset" command. But alas, it is too easy to think that "oh, I should use this nice command to clear /var/tmp".

2024-06-14 15:05:49

TIL (thankfully second hand) that running "systemd-tmpfiles --purge" will delete /home in systemd 256 [1]. Apparently if you think linux is mainly for running cloud services, this seems reasonable to you. Or something.
[1] tested with systemd-tmpfiles --dry-run --purge on debian. I guess it _could_ be a Debian addition, but I'm guessing not.

2024-06-07 10:18:40

Any hints for modifying #3Dprinted hard plastic? I want to cut a notch in the red plastic thing so that I can attach the charging clip to the watch.
https://media.mathstodon.xyz/media_attachments/files/112/574/813/057/980/057/original/4019055a7fb2317a.jpg

2024-05-12 00:33:51

This Caribbean Reef #shark looks somehow dappled gray because of the lighting, but it is really darker gray on the top and white on the bottom, I guess it's a simple form of camouflage. #Belize #SCUBA
https://media.mathstodon.xyz/media_attachments/files/112/425/304/943/958/314/original/602aa1d2cb07e984.jpg

2024-04-11 10:53:42

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@npub1sys…ckr3 Oh the charming optimism of thinking i need to think about something to oppose it.

2024-04-11 10:47:35

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@npub1sys…ckr3 Inheritance tax now!

2024-03-31 14:41:49

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@npub1afz…wdvg well I'm on episode 126 of 500 songs, so it can't be all bad

2024-02-25 19:00:27

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@npub198t…hasj @npub1mxu…3edu I hope you wrote OnlyFans for where you heard about them. Credit where credit is due.

2023-11-16 14:49:59

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@npub1sys…ckr3 I mean, tomorrow might be a snow day, think of the wasted effort in eager lecture prep.

2023-07-18 23:32:14

I have a possibly tricky #licensing question for all of you people who are not my #lawyer. I have collected a corpus of #email [1] to help tune #notmuch
There are about 200k messages collected from two public mailing lists and the Enron corpus. In a fit of public spirit I thought I should upload it as a dataset to https://zenodo.org. But I have no idea what license, if any to put on the data set. Anyone with similar experience? Somehow the Enron corpus ended up CC licensed, but I don't know if any lawyers were harmed in the making of that decision.
[1]: https://notmuchmail.org/corpus/

2023-05-31 10:06:27

I'm not a churchgoing person, but reading [1], I recognize why both one set of my grandparents and one of my mathematical mentors were part of this organization. Respect.
[1]: https://www.uua.org/safe/handbook/alternatives-calling-police. Seen on some other post on fedi.