Christian Lawson-Perfect @christianp@mathstodon.xyz
- Homepage
- http://somethingorotherwhatever.com
- Location
- Newcastle upon Tyne, UK
- Pronouns
- he/him
- Favourite number
- 3435
Admin
Mathematician, koala fan, mathstodon.xyz admin,
⅓ of https://aperiodical.com
Joined Apr 2017
@11011110 getting @aperiodical to toot when we post is on my rainy day to-do list
@tpfto hi! That's a superb first toot
Christian Lawson-Perfect
boosted
Finally joined this thing, so here is an old image I did of the Boy surface
@acciomath @gleech if that's the case, I'm not interested in setting anything up with them.
Welp, looks like a couple of hours of using Blender has killed my middle mouse button!
@gleech me personally: no. It seems from that post that if you want to verify your own account with keybase, you can do that without any intervention from me
I'm finally getting my head round #blender. I've just #3dprinted this tiny teeny house
Christian Lawson-Perfect
boosted
Why software projects take longer than you think – a statistical model at https://erikbern.com/2019/04/15/why-software-projects-take-longer-than-you-think-a-statistical-model.html - discuss at https://freepo.st/freepost.cgi/post/f2a8xbu4mu #freepost
Christian Lawson-Perfect
boosted
@christianp @JordiGH To me, this sort of goes back to the question of whether functions are valued which depend on other values (a la early mathematicians and most physicists) or machines which take and spit out values (computer scientists and most modern mathematicians). A lot of modern notation and terminology is an uneasy mix of the two, and I’d love to see some better way of reconciling them which preserves the benefits of both.
#MastoAdmin I just cleared 11G of preview cards from my instance. Why isnt' there a tootctl command for this? Are they supposed to be cleaned up automatically?
@JordiGH yes, for arbitrary expressions, for a certain kind of equivalence. What I'm saying is we don't have good language for talking about the different kinds of loosely-defined equivalence like your example
@11011110 proposed by a random Russian dude.
Christian Lawson-Perfect
boosted
off on a tangent: did you know that the clear stuff (vitrious humor? aqueous? we forget which) in your eyeballs can scintillate when struck by charged particles, and make your eyes act like little cosmic ray detectors?
retinas are sensitive - it only takes about four photons to activate a rod cell in near-total darkness - and astronauts have talked about seeing blue flashes with their eyes closed all the time while in space, especially in higher orbits.
@JordiGH Implicit domain information from variable names is something I'm interested in at the moment! I believe it's a real thing and I'm on board with the \(kr^2\) contingent.
In general, we don't have a ton of good language to identify when two expressions are the "same", whether up to substitution of variables, algebraic rearrangement, or some other transformation.
Christian Lawson-Perfect
boosted
Kernel Density Estimation
https://mathisonian.github.io/kde/
Une chouette animation pour comprendre ce que KDE signifie
#visualization #statistic #math
https://shaarli.buron.coffee/?aR8-PQ
I've just updated mathstodon.xyz to Mastodon v2.8.0.
Release notes: https://github.com/tootsuite/mastodon/releases/tag/v2.8.0
It's got polls, an interface to manage your follow lists, and lets us change signups from open access to "ask for an invitation". We'll do that if spam becomes a problem again (it currently isn't)
brazen useless francophilia Show more
Christian Lawson-Perfect
boosted
Came across the fibonacci word the other day: s₀=0 s₁=01 sᵢ =sᵢ₋₁||sᵢ₋₂ (string concatenation). The limit is 0100101001001... seems to have only a passing resemblance to the fib numbers... but look at y=x/φ in R² and consider where it intersects the grid with vertices in N² - write a 0 when it intersects a vertical line and 1 when it intersects a horizontal line and you get 0100101001001... !!
https://en.wikipedia.org/wiki/Fibonacci_word
An advert on French radio for an Italian pasta sauce, with a slogan in English spoken with a French accent.
🤨
- Homepage
- http://somethingorotherwhatever.com
- Location
- Newcastle upon Tyne, UK
- Pronouns
- he/him
- Favourite number
- 3435
Admin
Mathematician, koala fan, mathstodon.xyz admin,
⅓ of https://aperiodical.com
Joined Apr 2017
