soc.octade.net is a Fediverse instance that uses the ActivityPub protocol. In other words, users at this host can communicate with people that use software like Mastodon, Pleroma, Friendica, etc. all around the world.
This server runs the snac software and there is no automatic sign-up process.
Whaaa? Not having uniform math standards for assessing admissions isn't working? <shocked> How can this be? 🙄
✅ Citing ‘severe’ math deficits, UC faculty demand a return to SAT tests for STEM applicants
https://www.latimes.com/california/story/2026-05-27/uc-math-professors-demand-return-of-sat-for-stem-admissions
#sat #uc #math #stem
@Strandjunker We *are* the ‘system’.
#Americans have *allowed* the #MAGA cult and #BananaRepublicans to ‘drain the Treasury’ and trash the reputation of the #UnitedStates by *refusing* to abandon the party system that the #FoundingFathers *intentionally* left OUT of the #Constitution. They saw that that it was a cancer on #UKpol - with Whigs and Tories responsible for the same corruption #Democrats and #Republicans wallow in now.
Use #math to flush the 💩, #PrimaryFromTheCenter.
Is there a program equivalent to
printf("Hello World!\n");
in Geogebra?
And if so, is there a tutorial or book that teaches to poor dumb programmers with examples like that?
@futurebird Credulous people in #Tennessee who follow #Qanon (#Russian propaganda) and voted for #Trump three times for #POTUS - because he was going to put #pedophiles in prison and keep the #UnitedStates *out* of any #WarForOil - will be damned if they vote for his cowardly stooges again!
The #2026midterm election will be a #BlueTsunami and #gerrymandering will make the #Democratic gains *bigger*.
#PoorlyEducated #BananaRepublicans don’t do #math. 🤷🏻♂️
This is a fun one – can you solve our latest #ACMCoffeeBreakPuzzle? What number would come next in this sequence? 🔗 here for more: https://www.acm.org/education/coffee-break-puzzles
NESHacker on Basic NES Platformer Movement
A 6502 is not a bad little machine, but it does require efficient coding to get decent real-time results. NESHacker dives into basic Mario-style platformer movement in a 10-minute video
https://www.youtube.com/watch?v=ZuKIUjw_tNU
The main portion of the video goes into subpixel movem
https://setsideb.com/neshacker-on-basic-nes-platformer-movement/
#development #retro #6502 #assembly #development #mario #math #NESHacker #platformer #retro
@jeffowski Now do #Math and #Chemistry teachers, too!
Maybe the decades long drop of standardized PISA test scores for students in #American #PublicSchools should be cause for alarm? 🤔
There’s a *reason* #Trump famously said “I *love* the poorly educated!” after he won his first primary during the #2016election in #Nevada. https://youtu.be/O9F6EAMPky4
#Resist intelligently!
RE: https://mas.to/@kityates/116458409259644028
Make America Think Again
in which "Again" is doing some heavy lifting.
A brief lesson in how to honor a mathematician:
"This Alternative Heritage plaque adorns the house in Hull where John Venn was born in 1834."
https://www.futilitycloset.com/2026/04/15/set-theory-3/
#math #maths #mathematics #Venn #venndiagram #UK #settheory #historyofmathematics
https://www.youtube.com/watch?v=kYB8IZa5AuE
Now I want to find the maths teacher who taught us this and shake him by the scruff of his neck. Or whoever wrote the curriculum.
#math #pedagogy #3Blue1Brown
wikipedia
In the 1980s, Stephen Wolfram engaged in a systematic study of one-dimensional cellular automata, or what he calls elementary cellular automata; his research assistant Matthew Cook showed that one of these rules is Turing-complete.
I find that interesting. They also cover toroidal cellular automata which are actually easier to define the rectangular cellular automata.
part1
Duration and the Intervalic Imposition: Thinking about TIME and DURATION. Looking for #feedback
https://philosophics.blog/2026/04/01/duration-and-the-intervalic-imposition/?utm_source=masto&utm_medium=social
#philosophy #physics #time #duration #memory #bergson #kant #Heidegger #husserl #phenomenology #metaphysics #math #maps #blog #podcast #history #reading #writing #essay #comments
Shifting from Parcifal to Parfit, I'm debating the value of moral maths that seem to be an outgrowth of the attempt to couch everything as utility and economics.
https://philosophics.blog/2026/03/30/the-blind-spot-of-moral-maths/?utm_source=masto&utm_medium=social
#philosophy #morality #psychology #economics #utility #math #mathematics #blog #essay #writing #podcast #reading #parfit #reason #academia #enlightenment #medical #intervention #hospital
My debut album. A love letter to science, to rabbits and to mathematics. Please enjoy!
https://djrabbit1.bandcamp.com/album/the-chase
It's called The Chase #math #physics #RiemannZeta #music
Need a break? Think over our latest #ACMCoffeeBreakPuzzle and leave your answers in the comments. 👇
How many times does the minute hand cross the hour hand on a clock in a 24-hour cycle? We’ll tag correct solvers in stories. Check out our website for more: https://www.acm.org/education/coffee-break-puzzles #computerscience #puzzle #math #cs
Yeah game of life would have to be animated so, maybe a gif.
There's a lot of deep math in the game of life.
I'm curious if you can write repeating animations using game of life on a torus. I am also curious about non repeating games that run a long time/forever.
It gets right into Godel quick.
They teach you the "English system" on antenna calculations in the US.
468 / Frequency = half wave dipole in feet
Then multiple by 12 for inches, divide by two for each side blah blah blah
In meters, 142.5 / Frequency = half wave dipole... but it corresponds to the band names.
In meters, for a 10 meter dipole at 28.500... you need an antenna that is 5.000 meters (half wave of 10 meters). 🙄 That's WAY EASIER.
20 meters at 14.250Mhz? 14.250/142.5 = 10 meter half wave dipole.
Ooof, this smells of a sign/math error somewhere, ouch.
"...the software that should have pointed Lunar Trailblazer’s solar panels toward the Sun instead pointed them 180 degrees away from the Sun...."
I just posted the source code for my library/environment for doing symbolic computations in differential geometry:
"We present a diverse set of 10 research-level math questions, drawn from algebraic combinatorics, spectral graph theory, algebraic topology, stochastic analysis, symplectic geometry, representation theory, lattices in Lie groups, tensor analysis, and numerical linear algebra. Each question arose naturally in the research process of the authors and has been answered with a proof of roughly five pages or less, but the answers have not yet been posted online."
https://mathoverflow.net/q/507630/11100
an example of a classic algebraic geometry construction gone wrong, or perhaps noone can read these 110+ y.o. texts any more.
#math
P.s. that the python docs needs to call out that 0.0 is considered finite is just very funny to me.
(See isfinite immediately following isclose in the docs.)
Well their description includes all your points, but it's not clear.
Point 1 is included in the abs(a-b) of the definition.
Point 2 is the expression, which includes the <= comparison operators which will return a bool, so it is correct.
Though I do agree that it should be better documented. I'd assume the usual bug tracker is the best place to submit doc improvements.
The cmathmodule.c doc string documents that it returns a bool and takes complex inputs for a and b (which are not included in the docs)
Spent half an hour tinkering with the visualisation of the 120 5-cells inscribed in the 120-cell - added a new view which removes the 120-cell's edges and gives the 5-cell edges a hectic colour scheme
Imagine a compulsive tendency: the individual collects every free code they can find. Today, they own approximately 20,000 albums (or more, and still collecting everyday).
Is there even a chance they'll listen to yours.. that they just got? Just #math
Remember, everyone is free to do as they please; I'm just trying to understand. :0)
The Geometry Behind Normal Maps via @lesley https://lobste.rs/s/mdnyhh #graphics #math
https://www.shlom.dev/articles/geometry-behind-normal-maps/
Digital Signals Theory https://lobste.rs/s/cude7y #book #math
https://brianmcfee.net/dstbook-site/content/intro.html
Typechecking is undecideable when 'type' is a type https://lobste.rs/s/0h7d8k #pdf #math #plt
https://dspace.mit.edu/bitstream/handle/1721.1/149366/MIT-LCS-TR-458.pdf
The Programming of Algebra https://lobste.rs/s/kejaqc #databases #math
https://arxiv.org/abs/2207.00850
Spectral rendering, part 2: Real-time rendering via @tgfrerer https://lobste.rs/s/absftt #graphics #math
https://momentsingraphics.de/SpectralRendering2Rendering.html
One Weird Hashing Trick https://lobste.rs/s/d6hdwo #c #math
https://notes.hella.cheap/one-weird-hashing-trick.html