#mathematical theories

[thepastisalreadywritten]

Papyrus of Ahmose or Mathematical Rhind (1500 BC / 1550 BC) is the oldest manuscript written in Algebra and Trigonometry.

Manuscript shows that Egyptians used first-order equations and solved them in several ways.

They know quadratic equations and solve them. They also know numerical and geometric sequences and know quadratic equations like two :

X2 + y2 = 100,

Y = 3/4 x, where x = 8, y = 6,

This equation is the origin of Pythagoras theorem, a2 = b 2 + c 2, and Egyptians used to call unknown number (koom).

Pythagoras developed his mathematical theories after travelling to Egypt and learning from Egyptian priests.

This has been proven in books of Greek historians and scholars such as Farpharius of Sour, Herodotus, and Thales.

Egyptians had Algebra, Trigonometry, and Geometry about 2000 years before the birth of Pythagoras and about 3000 years prior to al-Khwarizmi being born.

—

The Rhind Mathematical Papyrus (RMP; also designated as papyrus British Museum 10057 and pBM 10058) is one of the best known examples of ancient Egyptian mathematics.

It is named after Alexander Henry Rhind, a Scottish antiquarian, who purchased the papyrus in 1858 in Luxor, Egypt.

It was apparently found during illegal excavations in or near the Ramesseum. It dates to around 1550 BC.

#Papyrus of Ahmose #Mathematical Rhind #Rhind Mathematical Papyrus #manuscript #Pythagoras #Pythagoras Theorem #Ancient Egyptian Mathematics #Ancient Egypt #Alexander Henry Rhind #papyrus #Achaeo Histories #algebra #geometry #mathematics #Ahmes #Ahmose #Egyptian civilization #Trigonometry #mathematical theories #Hieroglyphs #Ramesseum

[knotty-et-al]

Visualization of the Rubik's cube

#permutation #permutations #groups #group theory #rubiks cube #rubikscube #math #mathematics #math visualization #visualization #knottys math #math stuff #mathy stuffy #cube #hexahedron #combinatorics

[snail-and-snail]

countability

#english #englishblr #school #schoolblr #language #langblr #math #mathblr #mathematics #math memes #grammar #grammar mistakes #number #numbers #number theory #set #sets #set theory #countable #uncountable #countability #uncountability #cantor #diagonalization #cardinality #rational #rational numbers #real #real numbers #infinite

[grainelevator]

Earth fractals from above

#man…fractals. just everything about fractals… #fractal #mathematics #fractals in nature #satellite #satellite imagery #google earth #geometry #geomatics #geomathematics #biomathematics #chaos theory #mine

[louisplumpyass]

#louis tomlinson #harry styles #girl i knew his mathematics was off but... #what is this #larry #louis and harry #larry stylinson #stylinson #harry and louis #larries #conspriacy theories #one direction #one direction fandom

[charlignon]

Sorry to put maths on your dash this early in the morning, but the polls to make colours are fundamentally biased, because all values should be independent to get the full spectrum. But in a poll, all values are related by the simple relation that a+b+c... = 100%

It means that most colours will not be obtainable from such polls !! Example given in RGB, to get white you would need 100% R, 100% G and 100% B. That is not a result you can get from a valid poll.

In more mathematical terms, if you project your RGB/HSV/whatever space on a cube where values ranges from 0% to 100%, the result set would be restricted to the intersection of this cube with the plane x+y+z=100. It's called Maxwell colour triangle.

On left, Maxwell triangle for a RGB cube. On right, Maxwell triangle on a HSL cube. Plot code based on this website

So here you have it. The result from these polls will inevitably fall in these. cw spoilers I guess

EDIT : the joke about gay being bad at maths was a bit unconsiderate as it vehiculate stereotypical ideas. English is not my first language, and sometimes I would just replicate some things that I read elsewhere, but I should be more cautious. I edited it, but I thought it was important enough to acknowledge

Also edited some sentences a bit for clarity. Oh and also also : this is not inherently a bad thing, and poll makers are generally aware of this. I just want to share a fun fact !

#polls #colours #mathematics #rgb #HSL #science #maths #colour theory #color theory #color #spoilers lmao #science for your dash #please don't let me flop it took me 1h to gather all this data lol #I didn't eat because of that

[catboycommunist]

That maths poll was interesting but I'd love to hear from people who chose to study maths at a higher level. No "i hate maths" option.

#mathblr #math #maths #mathematics #polls #for me its set theory btw #meowing

[m---a---x]

So you people like convoluted diagrams, too?

Here ya go, filthy

#mathblr #set theory #category theory #mathematics

[groupoids]

"I was told that generators in the braid group were their own inverse," I said, double-crossed.

#mathblr #group theory #math #mathematics #algebra

[auroral-melody]

"i hate math"

when most people say this, it's because they think math is about solving equations or memorizing formulas.

but really, this is what mathematicians mean when they say math!

you can braid a braid without loose ends!

fractals!

rubik's cubes!

do you like knitting? it has a lot of math in it!

the card game set is pretty cool!

stellated polyhedra!

music theory is full of math!

remove any ring, and the other two are disconnected

a triangle's angles don't have to sum to 180 degrees

calculating pi with toothpicks

how to make a magic square

0.9999... repeating is 1. not close to 1 -- it is 1.

a super easy way to multiply by 11 in your head

a super easy way to find out if something is divisible by 11

what's the fastest way to roll a ball down a hill? (and what does it have to do with squares?)

how many times do blocks collide? (and what does it have to do with pi?!)

there are just as many whole numbers as there are positive whole numbers. there are different levels of infinity

you only need 4 colors to color in a map, so that no two regions have the same color

somewhere on earth is a point with the same temperature and pressure as the point opposite to it

take a number. if it's odd, multiply by 3 and add 1. if it's even, halve it. you will get to 1. we don't really understand why.

#math #my posts #mathematics #can you tell i'm a knot theory bitch lmfao

[lipshits-continuous]

Only in mathematics will someone say something like "the empty word"

#maths posting #maths memes #mathblr #maths #mathematics #lipshits posts #lipshits memes #group theory

[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

#and human beauty standards change all the time obviously #height and weight and all. they come in and out of fashion every decade and that’s it’s whole own issue #but things like symmetry #clear skin #etc #those things are pretty much universal #there’s also a mathematical model for a ratio range of female attributes that is considered most beautiful across all times and cultures #even considering different heights and weights and such #so there’s definitely some consistency to beauty standards and THAT would be how elves are more naturally beautiful. #they look like their own species and they’ve ingrained it into the minds of other species that they are superior #so subconsciously the humans still believe it #>:( #kotlc #keeper of the lost cities #sophie foster #shannon messenger #kotlc fandom #kotlc theories

[dodecalemma]

Knots knots knots

My brain is only knots

And seifert surfaces

And links

#mathblr #mathematics #knot theory #blackboard pics

[noosphe-re]

In 1931, the Austrian logician Kurt Gödel pulled off arguably one of the most stunning intellectual achievements in history. Mathematicians of the era sought a solid foundation for mathematics: a set of basic mathematical facts, or axioms, that was both consistent — never leading to contradictions — and complete, serving as the building blocks of all mathematical truths. But Gödel’s shocking incompleteness theorems, published when he was just 25, crushed that dream. He proved that any set of axioms you could posit as a possible foundation for math will inevitably be incomplete; there will always be true facts about numbers that cannot be proved by those axioms. He also showed that no candidate set of axioms can ever prove its own consistency. His incompleteness theorems meant there can be no mathematical theory of everything, no unification of what’s provable and what’s true. What mathematicians can prove depends on their starting assumptions, not on any fundamental ground truth from which all answers spring.

Natalie Wolchover, How Gödel’s Proof Works, Quanta Magazine, July 14, 2020

#quote #mathematics #science #Kurt Godel #Kurt Gödel #Godel #Gödel #proof #truth #incompleteness theorem #theorem #Gödel's Incompleteness Theorems #Godel's Incompleteness Theorems #math #mathematician #logic #knowledge #ignorance #theory of everything

[rbrooksdesign]

"DMT_18," digital + acrylic, April 20, 2024, Reginald Brooks

DMT = Divisor (Factor) Matrix Table

#rbrooksdesign #digital art #color #math #geometry #primes #fractals #exponentials #perfect numbers #number theory #mathematics #butterfly fractal 1 #mersenne prime squares #divisors #graphics #archives #bim

[greetings-inferiors]

You’ve heard of Fermat’s last theorem, now get ready for

Fermat’s little theorem

Look at how tiny it is!!!

#maths #math #mathblr #Fermat #theorem #theory #mathematics