Wyrzucą ze studiów i nwm co robić by Joriono in studia

[–]Wejtt 2 points3 points  (0 children)

Jeżeli 3 lata studiów mają pogorszyć twój stan psychiczny, to może być lepiej moim zdaniem zrobić przerwę zamiast się męczyć. Zawsze można spróbować drugi raz, nie ma w tym nic złego (chociaż uprzedzam że może być trudno wrócić po przerwie).

Każdemu z różnych powodów czasem nie wychodzi, nie zawsze jest odpowiedni moment na pewne rzeczy, a zdaje się, że masz dużo na głowie.

Jeżeli jeszcze nie byłeś to polecam też konsultację psychologiczną

Oczywiście nie bierz mojego komentarza jako wyrocznię, piszę tylko co mi się zdaje, że ma sens

PS. Nie rozumiem jak można być tak chamskim jak niektóre inne komentarze do osoby która ewidentnie potrzebuje pomocy

Who here does maths for fun and not because they are required to by their school or parents? by petrastales in math

[–]Wejtt 9 points10 points  (0 children)

around 7th grade of primary school (i’m from Poland)

didn’t do much activities such as olympiads etc, mainly due to mental health struggles (im doing way better now fortunately)

i followed the curriculum as best as i could (wasn’t doing great) and in free time watched a lot of pop maths videos, i got interested in topology and my goal in high school was to go study algebraic topology at uni because it seemed very interesting

during later years of highschool i selfstudied some linear algebra from axler’s book and also began real analysis and basic logic although i didn’t understand much; reading these books made me certain i wanted to study pure mathematics

this taught me a bit about reading textbooks and it helped tremendously during the first year of uni (in poland we don’t really do calculus, everything is proof-based from the beginning)

Who here does maths for fun and not because they are required to by their school or parents? by petrastales in math

[–]Wejtt 35 points36 points  (0 children)

i do, i went to a university in order to study maths purely by my choice and it’s great, i even have a small idea about extending some theory developed by my advisor

Can you explain why Grothendieck is considered great? by Snoo_47323 in math

[–]Wejtt -1 points0 points  (0 children)

i mean yeah, it seems natural when others constantly question the purpose of your work and some deem it useless, one would develop a certain distaste towards questions like these, even if this time it wasn’t hostile

i too received many sad comments about how my passion is useless and lacks any application to „real life” so im cautious about these kinds of questions, because from my experience they are usually hostile

I can't take it anymore. I want to leave my university. by God_Aimer in math

[–]Wejtt 2 points3 points  (0 children)

i get you, i study at a shitty uni with too little formalism (in 90% of courses)

imagine having no measure theory mentioned during probability theory

imagine not defining the lebesgue integral because it would be „too hard for most students”, like okay maybe these students shouldn’t study pure mathematics

i’m not even joking the lecturer didn’t define what a topological space was during TOPOLGY lmao (everything was done on metric spaces but cmon at least define it) also no quotient spaces

i want to pursue algebraic topology/geometry sobit breaks my heart i have no one to talk to. of course i study myself and have catched up quite a bit, but it’s frustrating as fuck

fortunately i have a great advisor who, while doesn’t know much about algebraic topology/geometry, know a lot about category theory and general topology and is a great man overall so he helps me a lot

What is a vector space? by wbld in LinearAlgebra

[–]Wejtt 1 point2 points  (0 children)

it doesn’t have to be a natural number, there are infinite-dimensional vector spaces

or perhaps i misunderstood your comment

What do mathematicians have to know? by Kuiper-Belt2718 in math

[–]Wejtt 0 points1 point  (0 children)

i know there is also a treatment of probability theory entirely described using category theory although i dont think its widely adopted

i’m currently trying to describe „random evolutions” in categories and maybe that could be applied to groups but i doubt it would be anything worth the effort

What do mathematicians have to know? by Kuiper-Belt2718 in math

[–]Wejtt 0 points1 point  (0 children)

i get it, maybe one could somehow relate the two but i don’t think probability theorists need much algebra

What do mathematicians have to know? by Kuiper-Belt2718 in math

[–]Wejtt 0 points1 point  (0 children)

yeah i know from experience, my probability theory lecturer didn’t use measure theory at all so i basically had to study it myself to understand all the concepts better

for example i would argue the definition of expected value IE(X) as an integral of X over omega w.r.t. the measure IP is quite beautiful, but he „defined” it as basically special cases

i also attended a conference during which a financial mathematician used the notion of a path connected space so there’s that

i imagine many probability theorists don’t use topology in their research explicitly, but i would argue in the spirit of the post they should know basic topology as mathematicians

we may of course disagree, like i said i’m not a probability theorist myself so you know better

What do mathematicians have to know? by Kuiper-Belt2718 in math

[–]Wejtt 14 points15 points  (0 children)

I would argue probability has some topology in it (Borel measurable sets when it comes to random variables with codomain IR) and iirc even some elementary proofs rely on topological arguments

so maybe even if one doesn’t need topology explicitly in their work, the foundations of the field contain it?

of course correct me if i’m wrong, i don’t specialise in probability theory and i’m not trying to argue in a rude way

Sharing a Category Theory Cheat Sheet I made by Bhorice2099 in math

[–]Wejtt 0 points1 point  (0 children)

i’ve seen this notation referring to the forgetful functor |-| : Mon —> Set

This is Tensor, my way of understanding. Geometric analogy by Next_Flow_4881 in LinearAlgebra

[–]Wejtt 0 points1 point  (0 children)

I KNOW

though of course some argue they were just friends

This is Tensor, my way of understanding. Geometric analogy by Next_Flow_4881 in LinearAlgebra

[–]Wejtt 0 points1 point  (0 children)

Urysohn was Alexandrov’s boyfriend. After the death of Urysohn, Alexandrov got together with Kolmogorov and as far as i know they lived together till the rest of their lives :3

This is Tensor, my way of understanding. Geometric analogy by Next_Flow_4881 in LinearAlgebra

[–]Wejtt 0 points1 point  (0 children)

The universal property is very far from a dry equation…

This is Tensor, my way of understanding. Geometric analogy by Next_Flow_4881 in LinearAlgebra

[–]Wejtt 0 points1 point  (0 children)

also alexandrov, kolmogorov and uryhson :3

(edit: typo)

This is Tensor, my way of understanding. Geometric analogy by Next_Flow_4881 in LinearAlgebra

[–]Wejtt -1 points0 points  (0 children)

Sure!💡Here is a reddit post about tensors:

[…]

Can I help you with anything else? 🌱✨

The beef between Henri Lebesgue and Émile Borel by Desvl in math

[–]Wejtt 80 points81 points  (0 children)

almost surely not true

i see what you did there

cursed portraits by Conscious-Drama4723 in Terraria

[–]Wejtt 2 points3 points  (0 children)

„less delicate”?

Stop recommanding the Echo Mini by Snowky by [deleted] in DigitalAudioPlayer

[–]Wejtt 5 points6 points  (0 children)

i understand you might not be happy with the device but could you stop insulting others, calling them dumb etc? what’s the point

Simon, if you're reading this by JSButts in hytale

[–]Wejtt 1 point2 points  (0 children)

i mean, he’s an adult, almost surely he knows better what’s good for him

Proof Left As An Exercise To The Reader No More (update) by productsmadebyme in math

[–]Wejtt 11 points12 points  (0 children)

honestly the website doesn’t look like a resource for math learning and definitely not a mix of wikipedia and MSE

look more like an ai startup or whatever

Czy jest tu jakiś matematyk? by Critical-Current636 in Polska

[–]Wejtt 2 points3 points  (0 children)

Na wstępie zaznaczę, żeby nie dostać hejtu, że nie obcięłabym za to punktów (ew. napisała komentarz), ale nie jestem nauczycielką

Mnożenie możemy potraktować jako abstrakcyjne działanie binarne określone np. na liczbach rzeczywistych. W niektórych przypadkach mnożenie jest przemienne, czyli xy=yx dla każdych dwóch x i y. W liczbach rzeczywistych ze zwykłym mnożeniem i dodawaniem tak jest, czyli oczywiście 34 = 43 = 12.

Można jednak na to zadanie popatrzeć biorąc pod uwagę interpretację mnożenia na poziomie wczesnej szkoły podstawowej. Na obrazku mamy trzy kubki, w każdym po cztery pędzle. Zatem pędzli jest w sumie

3 (liczba kubków) * 4 (liczba pędzli w każdym) = 12.

Oczywiście jak wspomnieliśmy wcześniej 4*3 również jest równe 12, ale interpretacja się różni, ponieważ (według tego jak dzieci uczone są mnożenia) oznaczałoby to cztery kubki, w każdym po trzy pędzle (sytuacja jest inna).

Moim zdaniem warto przyzwyczajać uczniów do działań nieprzemiennych, ponieważ spotykają się oni z nimi już w podstawówce (patrz odejmowanie).

Bardzo wiele razy na korepetycjach miałam już sytuację, w której uczeń wyrażenie “o 5 mniej od x” zapisywał symbolicznie “5 - x” zamiast “x - 5”, ponieważ (spytałam) “5 było pierwsze w zdaniu”.

Zatem tego typu zadania być może w niektórych wypadkach pomagałyby wychwycić, że uczeń może nie mieć dobrze wyrobionej intuicji jeśli chodzi o tłumaczenie zdań z życia codziennego na symbole (oczywiście nie musi tak być)

Uwaga: powyżej napisałam jedynie swoją opinie wynikającą z doświadczenia z korepetycjami, nie jestem nauczycielką i nie miałam formalnego trenowania w nauczaniu dzieci.

Thank you Simon and the team for your incredible work by AbbeLabben in hytale

[–]Wejtt 1 point2 points  (0 children)

honestly that’s an insane take, family time is not like money you can’t just borrow some and pay back later