#Mathematical model

[in-sightpublishing]

Conversation with Tomáš Perna on AI and ANN: Member, World Genius Directory (4)

                      Publisher: In-Sight Publishing Publisher Founding: March 1, 2014 Web Domain: http://www.in-sightpublishing.com Location: Fort Langley, Township of Langley, British Columbia, Canada Journal: In-Sight: Independent Interview-Based Journal Journal Founding: August 2, 2012 Frequency: Three (3) Times Per Year Review Status: Non-Peer-Reviewed Access: Electronic/Digital & Open…

[calicojack1718]

What Happens Post Trump: There's Good News but Mostly Bad News

Reading time: 5 minutes Even while Trump fades into the criminal justice system, we still have the GOP gunning for our democracy, trying to saddle us with an oligarchy of elites. What is likely to happen as we continue down this road to rack and ruin?

Trump, Narcissism, Indictments, Election Loss, and the August Insurrection: Some Predictions I2I4, the rotund, dull-orange, short-fingered, vulgar Star Wars inept larceny bot, will win the Republican nomination no matter what happens. He doesn’t need to campaign. He doesn’t need to run commercials. He doesn’t need to debate. He just needs to be on the ballot. The MAGA base will take care of the…

[luxxeonthings]

Solid, manifold topology in compliance with 3d Printing rules and standards.

Blender 2.93 scene file ready to render with Eevee materials and settings.

3dsmax 2017 scene file with VrayNEXT material and render settings.

STL file included for 3d printing (SLS nylon plastic printing recommended)

FBX file included

OBJ/MTL files included

[myfairkatiecat]

So I was thinking about the whole elves-being-naturally-prettier-than-humans thing because that was always sort of weird to me when I FINALLY think I figured it out.

Humans used to know about the elves, and there are some things they still remember—hence myths about Atlantis and such. Reality is, humans and elves resembled each other in a lot of ways, but elves put themselves on a pedestal as better than every other species (that’s, like, canon, and better be addressed more fully at some point?) and that’s probably a part of the reasons humans “betrayed” the elves—they got sick of hearing that elves were better.

But it was just sort of implanted in their minds, though they weren’t fans of the idea, and elves didn’t go to great lengths to erase that idea from their minds. So humans remember myths and some things about elves, and Atlantis being the underwater city………and beauty standards.

It’s not that elves are naturally prettier than humans. It’s that human beauty standards are shaped around the natural looks of elves.

Thanks for coming to my ted talk

[pv1isalsoimportant]

(Semi-regularly updated) list of resources for (not only) young mathematicians interested in logic and all things related:

Igor Oliveira's survey article on the main results from complexity theory and bounded arithmetic is a good starting point if you're interested in these topics

Eitetsu Ken's list for resources on proof complexity, computational complexity, logic, graph theory, finite model theory, combinatorial game theory and type theory

The Complexity Zoo for information on complexity classes

The Proof Complexity Zoo for information on proof systems and relationships between them

Computational Complexity blog for opinions and interesting blog posts about computational complexity and bunch of other stuff

Student logic seminar's home page for worksheets on proof complexity and bounded arithmetic (great introduction for beginners)

Jan Krajíček's personal page is full of old teaching materials and resources for students (click past teaching). I also recommend to check out his books. They are basically the equivalent of a bible for this stuff, although they are a bit difficult to read.

Amir Akbar Tabatabai's page for materials on topos theory and categories including lecture notes and recording of lectures

Lean Game Server for learning the proof assistant Lean by playing fun games

[unnonexistence]

one of my friends is a biologist & i was really amused hearing some of her stories yesterday because they put into context just how believable newt's kaiju drift is as Shit A Biologist Would Do. like my friend has personally met both a guy who got infected with a botfly larva and didn't do anything to remove it (because he just didn't mind), and another guy who identified a tapeworm species by intentionally exposing himself to it (he had it narrowed down to 2 species and needed to know if it was the one that would infect humans) (it was)

[andmaybegayer]

An illuminating experience with regards to mathematics outside of the sciences was taking Macroeconomics 101 as my elective course while doing my engineering degree. At its heart Macroeconomics is basically mathematical modelling and control theory but because you're teaching business students who don't pay attention in their Mathematics 101 course you have to dissect one extremely simple equation into eight different parts where you set some coefficients to 0 and laboriously explain each one to them as a novel phenomenon.

This course was so committed to avoiding even vaguely abstract reasoning about its equations that the supplementary document on how to draw graphs for showing the behaviour of different models expected you to draw the curves in Microsoft PowerPoint with the Shapes tools. It seems like you only really get into practical computer modelling at like third year or even post-grad level.

While I'm sure the mathematics students would have thought we belaboured the point of how differential equations work, we didn't spend that long on it. Physics 101 is all about substituting equations into other equations and seeing what happens.

[m---a---x]

Inspired by all the newly created communities i have also created one about the topic closest to my heart: Foundational Mathematics

It is inteded for all types of posts about and from people of all kinds of backgrounds interested in the topic.

Please share with anyone you think might be interested. If you want to be added comment on this post, so I can add you.

[quasi-normalcy]

Erica Thompson, Escape from Model Land: How Mathematical Models Can Lead Us Astray and What We Can Do About It (2022)

[p-isequalto-np]

I found a book specifically for finite model theory that contains like 80% of all the things that interest me in math... Let's just say my motivation is back.

[calicojack1718]

What Happens Post-Trump: The Path of Political Disintegration, Part 1

They tell us the economy is good, but everybody feels so bad. Trump is indicted, but everybody is so anxious. What is going to happen next? Peter Turchin's Cliodynamics model helps us understand our current situation.

SUMMARY: Trying to envision the future of American democracy is proving to be difficult and despairing. Peter Turchin’s cliodynamics model of nation formation and dissolution is used mathematically model the national cycles of political integration and disintegration. It can help us understand the current state of American politics and where we might go after Trump exits the political stage.…

[luxe-pauvre]

If you become too dependent on a particular equilibrium to perform well, you make yourself vulnerable to being thrown off by changing circumstances. Being able to function in a wider range of conditions makes you more versatile and flexible. It’s also useful to have homeostatic processes in place to enable you to get back to what you find optimal after any sort of disruption. In competitive situations, those who flounder when they’re thrown off their equilibrium by something unexpected without having the mechanisms to reorient often suffer. Sometimes you can transcend your abilities by thinking about what an opponent expects or considers normal. You can also achieve more by rethinking what the equilibrium is in your field.

Farnam Street, The Great Mental Models Volume 3: Systems and Mathematics

[art-of-mathematics]

My wobbly torus-vortex wire model

I crafted this tiny wire model back in 2013. It's built of copper wire.

this shape has a very interesting handling - it wobbles, it's still merely stable, but it's still very flexible.

Back in 2013 this was how I imagined an elementary particle's coiled 'string' (partially relates to string theory).

Now look at the wobbly model when shaken:

(The notes in the background are some stuff that might be partially related.)

[chaunceydollz]

I missed these gay niggaz😌

[trybard]

being a 3d artist will really fuck with your perceptions of reality