study-discussion

[atomic prism]

i haven't done school related math in years

so basically none

[storm jasper]

Is this just for giggles or

[atomic prism]

wdym?

[storm jasper]

Like

“Shits and giggles”

Or like

Did you forget to do a math req

[atomic prism]

oh no i just started college

[storm jasper]

Wait how old are you

[atomic prism]

19 next month

i've been out of school for 2 years

[storm jasper]

(damn why am I young)

What

[atomic prism]

but just now going back in

[storm jasper]

Gap year or

[atomic prism]

yeah kinda

gap 2 years lol

[storm jasper]

Are you doing community college

First

[atomic prism]

nope

it's the same price for me

plus at least half of my uni is paid off

[storm jasper]

Where you going to college

[atomic prism]

like the specific college or just the city/state

[storm jasper]

City state

[atomic prism]

denton texas

[storm tide]

This starts to border on encouraging people to self-doxx; please don't do that.

[storm jasper]

Yeah I realized that once I asked mb won’t do it

[storm jasper]

Hm but since ur taking a double gap yr

And starting college this yr

[atomic prism]

yeah i start in 2 days

lol

[storm jasper]

And college algebra? I think the prep (since it’s just linear algebra)

You could get away with reading a chill textbook?

[atomic prism]

yeah i didn't have the requirements for pre calc

[storm jasper]

I haven’t taken linear alg (I take real analysis) but it’s rly chill

Oh have you not taken calc yet

[atomic prism]

nope

[storm jasper]

Uh

What are you doing after college algebra

Like real analysis? Discrete math

Or like

Multivarible and diff equations to eventually pdes

[atomic prism]

i have to take uhhh (in order)
college algebra
pre calc
calc 1
calc 2
linear algebra
multivariable calc
applied statistics

oh wait no i missed one

[storm jasper]

Can you take them all in a single yr or

[atomic prism]

no

[storm jasper]

Can you test out of them…?

[atomic prism]

this is spanned or a 4/5 year period

[storm jasper]

Gen Ed’s are annoying

[atomic prism]

nope

[storm jasper]

BRO FOUR YEARS??

[atomic prism]

oh no those are all major specific

[storm jasper]

Major is law and cs?

[atomic prism]

no u can't do a law major

computer engineering major

law is 3 years AFTER your bachelor's

so i do this then 3 more years for law

[storm jasper]

True (why I think of Harvard law smh I keep thinking of suits)

[storm jasper]

R u gonna overload

[atomic prism]

suits is a fire show so

[storm jasper]

I like Mike he’s a interesting character

[swift tartan]

Can we move this to discussion or smth

[storm jasper]

But does ur college

Like offer Clep exams?

[swift tartan]

CLEP isnt taken everywhere

My university doesnt take it at all

[atomic prism]

yes

but i have to pay for it

and i'm broke

lmao

[swift tartan]

this is usually the case

[storm jasper]

I guess you can’t test out of them then

[atomic prism]

i can't regardless

[storm jasper]

I was gonna suggest to test out and not have to be worried since you seemed concerned about college algebra

[atomic prism]

(there's no way i would be able to learn all of that in enough time to test out)

[storm jasper]

Wanna talk in #calculus ?

[atomic prism]

sure

[swift tartan]

no not really? Ive never heard this at all

@atomic prism ^

[atomic prism]

yeah i wouldn't know 😭😭

[swift tartan]

linear algebra as a regular ug course does not go over galois, ive never heard this happening

It does have strong connections with galois which is what you may have found though

[atomic prism]

yeah probably

im really tired so i probably just read it wrong

[swift tartan]

You would usually learn about Galois in Abstract Algebra

[storm jasper]

Yeah I was just curious cause I thought I saw something pertaining to hilbert and Galois theory (which I think is false)

[swift tartan]

do you know what exactly?

This is something I remember seeing before https://en.wikipedia.org/wiki/Hilbert's_irreducibility_theorem

[storm jasper]

I am tired so I’m spitting out random stuff

[cunning totem]

[rapid halo]

Hello, can anyone recommend good study material for Math CSET subtest 2 and Multiple Subject CSET 2?

[main lodge]

Goddamn man, last exam was so brutal it literally felt like my physical health was the bottle neck in my performance

One of the most if not the most challenging exams ive had. Need to improve my endurance training regimes to be better prepared for my next ones

[rocky terrace]

Lmfao what kinda exams do you have man

[main lodge]

Four hour exam on computational statistics. First problem was to derive three different methods of sampling from a univariate distribution, second was to find some transformation of a random variable so that its ugly ass distribution became log concave, then apply adaptive rejection sampling, third problem involved MCMC estimation of linear regression parameters and last problem was to use the EM algorithm to estimate parameters of a mixture joint distribution

Not even 5 hours would have given me enough time to solve each problem mathematically properly, but honestly i think im just out of shape

[grizzled bluff]

Hey any suggestions for applied mathematics research?

[swift tartan]

Assuming you are in UG now, do you have a specific area of interest, or just asking in general?

[misty mountain]

I think this varies heavily depending on applications you are interested in, if you aren't sure what's out there, check out applied mathematicians at nearby universities and see what topics they do research in if any sound interesting. for example, mathematical biology, physics, fluid dynamics, computational math, statistics (though often a separate field), scientific machine learning, the list goes on

[rocky terrace]

TQFTs

[grizzled bluff]

No im going senior year highschool but id like a nice one to par with my uni app

[grizzled bluff]

In general, but not really science related (physics,bio,CS)

[grizzled bluff]

what could i do on that

[swift tartan]

Idk how you would proceed with researching esp as a highschooler. You could try to see if you could attend a math camp, but I think it would be hard to find a camp willing to take you in since you are going to graduate (assuming you are a 12th grader in US).

In terms of "uni app", Id just recommend just blogging about your interests and what not but that means being able to identify those and find something you are passionate about

I wanted to pursue CS academia originally and catered stuff towards that. But I also didnt do it for just uni apps lol. I did it because I actually liked and enjoyed what I was doing

[weak oasis]

Hello

How do I approach maths with adhd I am getting a feeling of doing maths because of my coding interest

Any idea how do i start?

[green terrace]

Sipser's theory of computation, then arora and barak's complexity theory

Assuming you already know some analysis and algebra

[weak oasis]

Alright

Thanks

[green terrace]

<@&268886789983436800> also user has the r slur in their bio

[brisk heath]

@rose yarrow please remove the slur from your bio

[weak oasis]

Ah ok

👍🏻

[brisk heath]

Man... making it shorter and merely strongly alluding to the slur isn't really much better

I'm gonna wait for a smod to weigh in.

[weak oasis]

I have a great habit of giving up on maths many time

Also I hate angles things

I don't know I had very good time learning coding because of me multi learning languages

Instead of focusing on one

😭

[white canopy]

where can i find resources for learning online

[candid berry]

jokes aside, it depends on what you want to study; since you have pre-uni math selected, I think Khan Academy might be sufficient but again, it just depends on what you're studying

also this question might be better suited for #book-recommendations

[thin panther]

Hi guys do you have any advice on how to get better at analyzing mathematical word problems as it is my weakest

[mild hemlock]

draw pictures!

[silver bronze]

ok so i have a question

[hazy kestrel]

Try to focus on every little detail but only after you write down whats written, in equations. THIS HELPS ME ATLEAST

[hazy kestrel]

And this too yeah

[mild hemlock]

keep everything in variable form until the end

and do sanity checks, like units, always

at the beginning, i would just try to get a high level understanding of what the problem is asking, hence the drawing of pictures

then slowly turn up the level of attention to detail

[thin panther]

Ohhhh thanks everyone

I keep falling into some traps

Especially the last quiz i did so bad

I failed it unfortunately 😭😭😭

I understand the lesson but there were some words where i overthink hence my bad scores😔

I'll definitely try this when i study word problems

[sage seal]

I have my entrance exam for uni in 5 days! I have been studyinh the whole vacation (july 1st) cuz I come from 3 hours of math (to 8 hr curriculum). Had to tell this somewhere, I'm excited and a little stressed.

[normal sleet]

Good luck

[main lodge]

I fckn did it

Honestly wondering if my professor recognized my handwriting or something cuz i was not expecting that

[hard raptor]

how does one start writing proofs/show that in an unfamiliar area of mathematics. I find that I don't really know where to start

[hoary kindle]

Read a lot, read the proofs in the textbook and try to work out what the common ideas and tricks are

Do the textbook problems in order, typically they’ll start out with simple “apply the definition” type problems and get a bit harder by progressively bringing in new ideas

[grizzled bluff]

i got into math camps but they refused my scholarship because im not a us citizen :(

[rose peak]

Hello

I just watched a video of a guy ‘proving’ the RH with a compass and ruler 😭

Worst experience of my entire life

[green terrace]

[solemn pollen]

guys so i completed high school 1 and a half years back, and now im in uni, doing engineering. the sem 1 maths module is what i did in 11th and 12th grade. and well honestly rn im kinda cooked cause i have a class test in week 8, and rn we're in week 4. any tips on how i can improve?? i have limits and derivatives, continuity, and integration

[rose peak]

There was another video which ‘proved’ it and uh the guy wrote $i=-0.5$

[mossy shadow]

Real Lost Fruit

[green terrace]

😭

[green terrace]

Most calculus textbooks should cover this material

[solemn pollen]

thank you

[compact river]

Dunno where to send this question so I'm sending it here, as it's more about how to prepare for something

In the image there's a part of a calculation of an exercise in my Physics book. The point here is about the math expressions, which imo are painful to compute without a calculator. Is it possible to train to mentally evaluate them in under a minute? How so? Any tricks?

[wispy zephyr]

i believe that is intended to be performed with a calculator

[compact river]

Still, I'd love to learn how to do them fast without one

Having to go out of the pdf to use a calculator sort of breaks my flow

[wispy zephyr]

you might want to get a hand calculator

since you would need one for exams anyway

[compact river]

I can't use one in the exams I'll try

[wispy zephyr]

on an exam you would not be expected to work with those sorts of numbers then

[compact river]

Indeed

[tropic field]

Real

confirmed

[stone valley]

Where do I find the proof for the theorems? I tried on yt but they're very unsatisfactory

[safe harbor]

For what theorems

[stone valley]

Well rn I'm interested in the compact interval one
If that's even the name 😭
But I always wondered where do they put the proofs

[safe harbor]

Which compact interval one...

You can generally find proofs online or in books

Sometimes if you read about a theorem it's followed by a proof or a reference to a proof is provided

[stone valley]

If a function in continuous on a compact interval
Then it has a max and min (it's bounded)

[worldly rune]

any book on real analysis will do

[stone valley]

Mmm is it the original? Like the one given by it's "creator"

[safe harbor]

https://en.m.wikipedia.org/wiki/Extreme_value_theorem

even Wikipedia sometimes has proofs

[worldly rune]

you do not want the original proof

[stone valley]

Why 💔

[worldly rune]

its written in a language that is too different from todays

its also very possible it wouldnt hold up to modern scrutiny

[stone valley]

That makes sense

Thanks everybody

[green terrace]

Who wrote the first proof of the EVT?

oh

nvm

[normal sleet]

Well if you know the word compact
Then first you show that connected compact sets of R are precisely the closed intervals

Now if f:[a, b] -> R is continuous, then since [a, b] is compact and connected, its image is compact and connected so its a closed interval, whence it has a max and min

[stone valley]

Thanks man

[glacial raven]

Can anyone teach me integration?

[gloomy dawn]

do you understand differentiation.

[glacial raven]

Yes

[gloomy dawn]

where did you get stucked?

[glacial raven]

The thing is i understood anti- derivative but i when i am trying to solve the questions i am not able to solve them

[gloomy dawn]

share example

[thick ermine]

whenever i see this guy's name i just think "so are you down with that" "we're down with that"

[faint bay]

Hey all.

I have a question about learning mathematics. I was reading a book called elementary linear algebra by howard anton i am loving hr depth. But I am able to read 4 pages a day , i will extend for sure. But is this the best way to learn maths.
I mean the book is 800 pages long . I have to study more subs too like calculus and all. But I feel it will take too much time.
What is best strategy. Although i love going deep in maths and building intuition

[tropic void]

i would say that focusing too much on how many pages you can get through in a day is counterproductive

apart from hard deadlines like exams, you should focus on understanding the maths well imo, even if it takes a while

one thing to bear in mind is that you should try to free yourself of the illusion that maths is cumulative

maths is more like a metroidvania

if you're stuck on a particular part of a textbook, sometimes the right thing to do is genuinely to just move on and come back to it later (if at all)

in my experience, sometimes the thing i needed to understand something wasn't a simpler example, but actually a more complicated one!

[faint bay]

Thanks. It might help in my mindset.
I wonder if is this average rate i am learning at.

[tropic void]

https://youtu.be/-Gajs_UNItU?si=dJGq0m8IrEDhbSs0

i would highly recommend checking out this video

it goes into some real-world examples of where viewing math as cumulative actually hindered students' learning

another thing i think you should keep in mind, but which is quite non-obvious when you start out, is the following

the rate at which you learn isn't fixed

in fact, it accelerates with time, generally

at least, this has been my experience learning maths

this is part of why i think focusing on how many pages you can get through in a given day isn't really helpful - as long as you're engaging with the ideas and understanding them deeply, you'll get faster over time

[faint bay]

Okay . You mean with time , My mind will be able to digest better

And faster

Btw thanks a lot. I believe this will help a lot .

[tropic void]

[limpid hamlet]

though it is helpful to have the goal of "read a page a day". or like "open the book and think for 30 mins" really.

[tropic void]

yes but notice these are two different types of goals

one is about how much "output" you get in a given day, in terms of number of pages covered

the other is about how much "input" you put in, in terms of time spent

[limpid hamlet]

Well, I'd say, goal is making sure I do anything today, that I get myself the opportunity to figure something out.

The real standard isn't output or input, for me the problem is... doing anything at all.

[tropic void]

mhm...

[cinder steppe]

https://tenor.com/view/cat-kitten-handshake-deal-agree-gif-7134721403924803840

[glacial raven]

Anyone wanna study together!.

[scenic shuttle]

depends on what ur studying

maybe linear algebra?

[high plaza]

guys can you tell me how to memorie all the formulas of trignometric eqn , do i just memorize them or what it too hard memorizing them

[scenic shuttle]

if it's highschool then yes memorize it

[high plaza]

it is highschool

[scenic shuttle]

,tex .rocket trig

[mossy shadow]

アキラ (>⩊<)

[scenic shuttle]

are u referring to these?

[high plaza]

yes and even there are formulas like cos(a+b) and (a-b)

[scenic shuttle]

it's already listed

[high plaza]

ohh my bad didnt see it

[scenic shuttle]

np

[high plaza]

yes soo there is no easy way?

i gotta learn them no matter what like memorize it?

[scenic shuttle]

well u could try proving them

[high plaza]

i guess i just have to memorize them

thanks anyways dude

[scenic shuttle]

don't mention it

[glacial raven]

No not that way I am not able to study so just be there so I can study and you also study.

[scenic shuttle]

wdym by just be there?

[glacial raven]

Nothing leave it

[scenic shuttle]

ok

[glacial raven]

@long hedge

[storm jasper]

Selling /jk how’s ur math going

Pretty chill

So your in abstract alg right? (I think group and ring theory is in it)

Yeah

And galois

I skip abstract alg and go to point set top

Then my circle around

Ah you’re a freshman or junior?

That’s why I skip

Offered in even years

What do u do to study it

Cause I’m like

Super pure

I do topology and analysis

Wow

What do you do

Take notes or

I take notes on obsidian

So it’s like a summarized one with a easy to understand explanation

Okay so don’t take notes besides main statements

A trivial one would be de Morgan for instance

Bet

All of the things are pretty trivial for rn

[rain copper]

help me

[wide crypt]

To ask for mathematics help on this server, please open your own help channel or help thread. See #❓how-to-get-help for instructions.

[tropic void]

i also take notes on obsidian!

i've found it pretty useful

[storm jasper]

Indeed I like the built in latex that is sort of like overleaf

[tropic void]

[storm jasper]

I don’t like overleaf because I can’t see the formatting

[tropic void]

yeah it is useful that the latex gets compiled live

[storm jasper]

Yeah

And also it’s easy to save as pdf

And CREATE A DOCUMENT

I ain’t memorizing document title and setup until I write an actual paper

[tropic void]

exactly!!

glad to see another obsidian user :)

[storm jasper]

<@&268886789983436800> scam

I don’t get a thumbs up

[tropic void]

i can give you one

[tacit glen]

L

[glacial raven]

Ya

[storm jasper]

You got it

Learn Riemann sums

[glacial raven]

No

I am not able to

[storm jasper]

Learn Riemann sums bro

[glacial raven]

8

[storm jasper]

It’s summations

[glacial raven]

9

[storm jasper]

What

[glacial raven]

Nothing

[glacial raven]

Ya

[gaunt ruin]

what is this channel

[storm jasper]

How to study more effectively

[tacit glen]

more like how to get rekt 💔🥀

[wild badger]

anyone know alot about chemistry? or enough to explain some solubility stuff to me (like dissolves like, hydration/dissasociation, micelles, etc.)

[wispy zephyr]

there is a chemistry server in #old-network

[gloomy dawn]

??

[glacial raven]

What

[gloomy dawn]

why you replied ya if we have discussed the problem earlier?

[glacial raven]

Ooh sorry my bad

[gloomy dawn]

no problem. All good?

[glacial raven]

No nothing is good about mathematics

[gloomy dawn]

okay, good day mate.

[glacial raven]

Ok

[opal cargo]

I write it down

[storm jasper]

I remember it

[limpid hamlet]

remember by obsessively reviewing when you notice yourself forgetting

[carmine condor]

is this a good channel to ask for advice?

[rocky terrace]

By solving problems related to the stuff

[rocky terrace]

Now do Arnold's ODE

[scenic shuttle]

depends on what advice

[carmine condor]

i alr got stuff sorted out so nvm

[boreal yoke]

Does someone have tips about learning geometry because I think I stuck with it in primary school (I’m in 3rd class highschool math-pshysics)

[scenic shuttle]

I was stuck on that too before. my tip: get a compass or protractor and actually draw the problems

sometimes u just need to see it for urself instead of just looking at a picture bc it makes the shapes and angles way easier to understand 🙂

[limpid hamlet]

I think Poincare, or maybe somebody else, once (apocryphally?) said something like "A mathematician benefits from a so-so memory, because then they'll forget something and have to come up with a different proof or version of it that works better or can be used for something else"

[opal cargo]

I very much agree with it

[limpid hamlet]

I don't.

Sure, there is such a thing as being spoiled by knowing the answer already

and sure, this can in principle happen by you remembering the spoiler

but...

there is in fact benefit to remembering a bunch of things

and i'm not sure how often the "spoiler effect via memory thing" happens

(to be clear I am including the phenomena where you see a solution, and then cannot think of another - or you see the answer and then cannot say how you would think if you didn't already know it)

[opal cargo]

I just agree with the bad memory part specifically, yeah I would bet that we can sometimes take things from our memeory without realizing it

Personall, I forgot the binomial formula $\binom{a}{b} = \frac{a!}{(a-b)!b!}$ and instead put in something like $\frac{x}{(1-x)!x!}$ on desmos and found the gamma reflection formula after noodling around a bit because of it. Bad memory ftw!

[mossy shadow]

Yeatte

[opal cargo]

Bad memory can be fun, but in general yeah a good memory is prob better

[edgy sierra]

they drilled this into my head in combinatorics

[boreal yoke]

Thank you I wrote more about my problem on #geometry-and-trigonometry

[brazen mist]

Can't remember the ZFC axioms, sorry

[normal sleet]

Yeah theres too many axioms

Let's use NBG instead

[devout sun]

KFC axiom

[coral plover]

Understand it, then use it in problems. The understanding part is the most important, as if you do, then even if you forget like a formula for instance, you'll still know how to get it from scratch.

[shell glade]

mendelson uses this in his logic book

the second edition at least

[tropic void]

<@&268886789983436800>

[sour garden]

Um im lok stressing abt this math test and i was wondering if anyone has any tips on how to remember things with memory issues ?

[scenic shuttle]

depends on what topic and what u studied before the test

helps u remember things

when u practice too

[worn wharf]

hi

@quiet scaffold you're talking about 3 completely different areas

orbital mechanics, maxwell's equation, and schrodinger's equation

[quiet scaffold]

all calculus

i dont have any experience with multivariable calc

[worn wharf]

ah yes, then go learn that first

[quiet scaffold]

where to learn it

[worn wharf]

on LibreTexts there are plenty of resources

I can also send you my uni's notes if you want

[quiet scaffold]

which ones would you recommend

[worn wharf]

literally any of them

[quiet scaffold]

would they approximately "start off" assuming that the reader knows highschool integration

[worn wharf]

yes

https://math.libretexts.org/Courses/Oxnard_College/Multivariable_Calculus/01%3A_Vectors_and_the_Geometry_of_Space

see here's where you can learn the dot and cross product

https://tutorial.math.lamar.edu/Classes/CalcIII/CalcIII.aspx - here also

[quiet scaffold]

https://math.libretexts.org/Bookshelves/Calculus/CLP-3_Multivariable_Calculus_(Feldman_Rechnitzer_and_Yeager)

[quiet scaffold]

done dot product but not cross

idk why

syllabus is weird

[worn wharf]

sure, that also works

make sure you cover Greens', Stokes', and Gauss's theorems eventually also

cause I noticed they were absent in the link you sent

[quiet scaffold]

is the third abt gaussean surfaces?

[worn wharf]

well it's called the divergence theorem

[quiet scaffold]

i'll look at the one you sent

[worn wharf]

that's the most common name

[rocky terrace]

Classical Mechanics by John Taylor

Introduction to Electrodynamics by D.J. Griffiths

also

https://www.damtp.cam.ac.uk/user/tong/teaching.html

[gaunt ruin]

guys I am doing this class but I am already behind on the material, today we covered multivariable limits but I still havent grasped the previous topics, I feel like If I continue down this road I might fail the course, any tips on making a comeback? the course started like 2 weeks ago and I am still trying to grasp the first week material

[grim ingot]

guys i am new to this server, and this doesn't mean i am good at math, in my most recent exam i only scored 26/40 T_T
so yeah, i suck at this sub and that's why i am here i need help to you guys in how can i really improve my math, i hope u guys is will help this poor highschooler, i know it's different type of question and people don't typically ask this type of questions but pls guys i will be glad if you guys will help me also before ending let me tell you what do my overall syllabus is about:

The Math syllabus is basically a mix of numbers, algebra, geometry, trigonometry, and data handling. It starts with Real Numbers and Polynomials, where you deal with factors, roots, and equations. Then you learn Linear Equations and Quadratic Equations, which are just ways of solving for x. AP (Arithmetic Progression) is about number patterns. In geometry, you cover Triangles, Coordinate Geometry, Circles, and Constructions. Trigonometry introduces sin, cos, tan and is later used in real-life problems like heights and distances. For measurements, there’s Areas Related to Circles and Surface Areas & Volumes, all about finding space and area of 2D/3D shapes. Finally, you end with Statistics (mean, median, mode, graphs) and Probability (chance of events).

pls guys i hope this will reach u and u guys will help me thank you..

[quick elk]

the problem is there is no question
it's a just a list of typical HS math curriculum topics
what are you expecting in a response

[swift tartan]

how can i really improve my math
Practice.

Find problems online and just do them, and also try to do the hw and understand why you made mistakes

[swift tartan]

yeah tbh it was lost in the paragraphs lol

[swift tartan]

For the syllabus you described, this sounds like a standard hs algebra class, youd find stuff on Khan Academy

[grim ingot]

Yeah you can say that

[normal sleet]

Anki generally doesn't work for math

[tropic void]

Definitions, theorem statements, proofs, intuitions…

[swift tartan]

I dont particularly recommend it, id more so just crank out practice problems that use the thm more than anything

Works for some ppl tho for sure

Im a regular user of Anki for languages, so I am familiar with it; just not for math fr

[olive geode]

I used Anki a lot last year, but it got to the point where I was trying to memorize statements I didn't really understand, which was basically impossible. And I find that when I do understand, it's relatively easy to remember, even without Anki

so right now I don't feel like Anki helps that much, for me atleast

[swift tartan]

Maybe its useful in early ug classes but not much in the upper lvl

[rocky terrace]

in the system

[crimson elm]

If it helps I never use Anki for math

Sounds counterproductive

[tropic void]

i used it throughout my undergrad and it worked pretty well for me

[humble violet]

Hello i was wondering if i could self study algebra 2 with a book and khan academy

[bronze kayak]

yes you can

[limpid sinew]

I took a statistics class for social sciences years ago. I really enjoyed it and now I'm studying statistics again just for fun. I have an Intro to Stats textbook that I'm reading through.

I just read about correlation coefficients and saw a formula that I don't remember at all. I looked through my textbook from the social sciences stats class and didn't see that equation anywhere.
Any idea what the main differences between these two texts would be?

[main lodge]

It could be that the social sciences text book uses the formula based on empirical data which gives just an estimation of the correlation, while your current text book gives the analytical formula yielding an exact solution

Try googling "empirical correlation formula" and see if you find that in your social sciences text book

[limpid sinew]

I don't see the empirical correlation formula in my social sciences text at all. I remember learning about the correlation coefficient but my social sciences text seems different than this other one.

Should I just focus on the new text and study those formulas concepts for now?

[lusty tree]

Did like 100 long division and multiplication problems the past couple days and safe to say ill just use a calculator from now on

[scenic shuttle]

i only use calculator if i see big numbers

or latex it bc it makes it easier for me 🙂

$\polylongdiv{2x^5-5x^4+12x^3-10x^2+7x+9}{x^2-x-2}$

[mossy shadow]

アキラ (>⩊<)

[scenic shuttle]

u can do things like this in latex

[devout sun]

blegh

[reef ocean]

oh that long division package is very useful I used it a while back while typesetting examples for some ugrad notes

[runic crest]

That's cheating lol

[opal cargo]

$\polylongdiv{2x+4}{2}$

[mossy shadow]

Yeatte
Compile Error! Click the reaction for more information.
(You may edit your message to recompile.)

[opal cargo]

[scenic shuttle]

I wouldn't call that cheating unless u don't know how to solve the problem I'm just using it to check my work or if its too much work to do

[scenic shuttle]

u need to add the polynom package into ur preamble

[uneven pecan]

Hello! Does anyone want to be my study partner? I'm currently studying group theory. We'll go through topics one by one and discuss our doubts together. If you're interested, please DM me.

[tight siren]

https://www.reddit.com/r/typst/comments/1hakflx/comment/nbqg1r6/?utm_source=share&utm_medium=mweb3x&utm_name=mweb3xcss&utm_term=1&utm_content=share_button

Obsidian + typst plugin

[lapis topaz]

Hi

Is anyone there

[limpid sinew]

How do you calculate the sum of xiyi in stats? I'm looking at an example in a textbook and I'm not sure how they got the answer. The answer is the sum of xiyi. Help!

[lapis topaz]

Hi

[stable sky]

im doing integrated 3 this year for math idk if yk what that is but its all graphs and its the class before precalc, is there any advice that i should know?

[lapis sluice]

you multiple each x value by its corresponding y value and add all the products together

[limpid sinew]

That's what I figured. Thanks!

[night kayak]

Looking to start an elementary number theory reading group. Let me know if you’re interested in joining.

[scenic shuttle]

pretty much u should focus on understanding the basics of functions, practice graphing different types (like linear, quadratic, exponential, and logarithmic), and get comfortable with operations and terms such as domain & range

[stable sky]

Ah ok

Thx

[vivid ember]

hi everyone ,low key trynna learn maths after highscool and i dont know where to start can anyone give me a heads up?

says the guy named algebra

xD

just kidding

but what do we learn from linear algebra

are their any other interesting topics somoene would like to share with me?

[vivid ember]

thanks man any book recommandation, channel or website for it u can recommand for me?

thanks for the help

wait before i go search the book

i just wanna know if like there are any cool projects or smth i can do witht this new topic?

all of them i guess idk

yeah i do some programming so maybe that

ah okay thanks u ve been very helpfulk

helpful*

[limpid hamlet]

Look at a fibonacci series.

This is defined by a difference equation:
$F_n = F_{n-1} + F_{n-2}$

[mossy shadow]

Xe\LaTeX (call me xela)

[limpid hamlet]

mmm i fucked something up

[vivid ember]

ah yeah i gave it a look seemed cool and stuff but i didnt really see it's demenstration besides from the recurrencee

idk if thats what its called

la reccurence in french

[limpid hamlet]

You can then find the eigesvalues and eigenvectors,

[vivid ember]

u assume Fn and proove Fn+1

[limpid hamlet]

Oh, I'm silly.

[mossy shadow]

Xe\LaTeX (call me xela)

[limpid hamlet]

The characteristic polynomial is $p(\lambda) = \lambda^2 - \lambda + 1$

[mossy shadow]

Xe\LaTeX (call me xela)

Xe\LaTeX (call me xela)

Xe\LaTeX (call me xela)

[limpid hamlet]

so, the solution will be $c_1 \phi^n u + c_2 \psi^n v$

[mossy shadow]

Xe\LaTeX (call me xela)

[limpid hamlet]

you can find u,v from initial conditions.

In general, this basically works for any linear difference equation.

The same occurs with linear differential equations, and the solution technique is similar but with exps

[fiery tundra]

Hello, I am in grade 9 (school hasn't started officially), and I'm unsure what to do/study right now. Do you have any suggestions? If so, please let me know!

Additionally, I would appreciate some suggestions on extracurricular activities to pursue that are both important and beneficial.

[jade furnace]

You're almost in high school. That's usually way before most people know what they want to do in life.

For Grade 9, study Algebra 1 or Geometry, depending on if you've taken Algebra 1 in 8th grade or not. I've heard of someone who took Geometry in 8th grade, and in that case, you want to study Algebra 2.

Honestly, for extracurricular activities, you should do something you want to do. This is your chance to find and pursue your passions.

[junior yoke]

😔

I feel like i hit a wall in studying math

second time

first time was in hs and struggled greatly in algebra 2, and i eventually learned the best way for me to get good at these classes were just grinding problems, redoing hw, etc

got so good at it i could learn an entire exams worth of content the day before and ace the test

and this worked up to discrete / diffeq / calc3 / intro lin alg

now i hit a second wall with advanced math classes like real analysis and probability theory

i felt like no matter how much i crammed i always ended up getting 70s/low 80s

and when i do hw or practice problems i could never get them right, always get stuck for hours and then just like look at solution then be like oh so thats how they do it

i feel like im missing something, anyone got tips for me?

like should i start previewing and reviewing after every lecture?

🗿 i feel like im getting a significant skill issue so i almost feel too stupid to study these subjects

[devout sun]

ask yourself what the motivation/high lvl intuition behind these solutions are, and come back to the problems after a day or two and try to reproduce everything on your own. maybe do the same for results in lectures too

eventually your pattern recognition and stuff will get better

[compact wave]

help me

[junior yoke]

Hmm I’ll try that then

yk sometimes my own questions don’t even make sense so I get nervous to ask 😂

We’ll see at least I get to start fresh this semester

[hollow anchor]

I need help with these

• WAM 10
• Math 9
• Foundations: Pre Calc 10
  I need WAM 10 to graduate but I'd like to have that extra study for Calc just as a reinforcement for better chances in post secondary

[main cliff]

So hi guys! So I have been self-studying maths at my own pace for about 2-3 years. I recently left a different maths Discord server, about 3-4 months ago, but now in need of someone to check my solutions. The problem is these books are not from the "standard" stuff I see online but I do wish for some help. So the books are:

• The Real Numbers & Real Analysis by Ethan D. Bloch.
• A First Course in Abstract Algebra by Marlow Anderson & Todd Feil.
• Linear Algebra by Sterling K. Berberian.
  I am just unsure what kind of "self-study flow" would work given I have a handful of handwritten solutions, with the help of my Remarkable 2, would work for this server since they come from various nonstandard books, and are numerous.

[wraith needle]

hii I have a question, I joined a math club to improve maths cause I suck and its my last year of high school before college, they made me a representative cause not many others wanted to join, I'm still stuck in the basics.. I mostly forgot about some lessons in maths when I went through a heartbreak but its no excuse, I didn't really think I'd need it till I realized college entrance exams needed it, what should I do?

[rocky terrace]

Khan academy

[normal sleet]

You should generally have a feeling if whether a solution is correct, but if you dont know how to solve something or if youre unsure just ask the question in the relevant channels

[main cliff]

Alright thanks! I was just worried if every answers need checking, which requires me to open a help channel that will likely stay for a long while or I need to open-close, then repeat, a help section whenever I need to check my answers

Also lastly, how do you feel about writing solutions here? I know most would prefer to LaTeX their answers, or share Overleaf links, do most just screencap what they share?

[rocky terrace]

You can use $\text{LaTeX}$ here as well

[mossy shadow]

Neamesis

[main cliff]

That's true just thought since I initially handwrite my answers I could LaTeX it for my own solution for storage and all, so I can share that LaTeX snippet here~

[safe harbor]

\LaTeX 😭

[main cliff]

$/LaTeX$

[mossy shadow]

Kani Sama (蟹様)

[main cliff]

:^)

[wraith needle]

Oki ty!

[royal basin]

a small note just to make sure that you are aware of it, for the subjects you are learning i think its better to post in the specific channels like #real-complex-analysis for real analysis etc.. since you will rarely get an answer in the help channels from a certain level of the subjects onwards

so you get faster responses in the specific channels

[glacial raven]

Excuse me, i need help

ability to think about practical problems
do you have any way to think, when i encounter word problems, my mind is blank and i don't understand anything

[sleek talon]

an example of such a problem would be in order

[pliant python]

Hello everyone, I am a high school student from Italy, and I have a strong interest in mathematics. I would like to dedicate part of my free time to studying it more deeply. Could you suggest a good direction or path for me to follow in my self-study?

[devout sun]

what have you done already?

[humble violet]

Hello! I really enjoyed playing videogames since i was like 5. I was wondering if including videogames as a reward system is good for studying?

Im a sophmore so i still got some time

[main cliff]

I will! Thank you!

So here is one question I want to ask from you guys, how do you take digital maths notes? Do you make a folder of the course then add a notebook, solutions book, and reference book? Do you tag them? Do you write them, text them, or both?

[cunning totem]

yeah I also only use pen and paper notes

that or just type into LaTeX

[main cliff]

I used to do that too then suddenly I heard of the Remarkable

I almost just use the device now, I still prefer a physical book though, but I am curious on how to index them since it feels very different to access notes

Nah I am a stats and data science graduate but did poorly on my maths and wanted to write better notes than just reading and copying lecture slides for self studies

Well currently dipping my toes into pure maths but I can assure you I am a different person lol

I for some reason find it easier to focus on paper for me but the Remarkable is a good compromise of that since it is just a single notebook for all my courses

but for some reason reading is still a physical thing for me

book clip?

How does that differ from say a bookmark?

Oh is it made of magnets?

I get scared of those as I had a friend who had hers ripped a page out carelessly

ooooh

I mean it's not for selling just telling me what it is :^)

Hopefully

Where was this thing all my life?

I had a book holder that also does that though but it feels cumbersome to use

[pliant python]

Alegabra I done inequalities

[grizzled bluff]

yo guys

i want to buy the 991ex on ebay

but idk how to tell if they r real or not

any advice

[scenic shuttle]

wdym by real here? like u want to see if ebay is real or what

my advice is look for the QR code on the calculator’s screen or box and scan it with ur phone to see if it goes to the official casio manual online

[unique cove]

Does anyone know videos/websites to go to to help explain math things (such as functions etc.) but they dumb things down awfully much? I can't really find anything that dumbs things down enough for me to understand in a way that will help me remember

Trying to study but it's hard when I don't understand :')) (also pls ping if responding(

[green terrace]

it is quite bad in my experience

[pliant python]

Can anyone help me, pls
As a math novice, I really want to learn new knowledge.

[olive geode]

there are lots of options, you could start learning linear algebra for example. Friedberg, Insel and Spence is a good book for this

[devout sun]

Do stuff on khan academy for a while, you can self study basically all of hs math there. A normal progression would be to do algebra 1, algebra 2, maybe a trigonometry unit by itself, a bit of precalc, some calc 1 and then calc 2. There are probably other resources you can find but this is basically what I did

[rugged pulsar]

I also suggest you to read "How to solve it" by G. Polya. It'll give you a pretty good base for understanding and approaching problems. It can be lame at times but the book itself makes you grow your curiosity in mathematics.

[main cliff]

Really? I have been using it since released and almost never gone back to paper. I initially used an iPad and absolutely hated it until a friend of mine brought up the Remarkable

Now I bring my Remarkable almost everywhere lol

[green terrace]

Fair, I personally didn't enjoy it when @glossy mortar showed me his a few months ago

[main cliff]

I understand it's just I write more than I type, so this device is perfect for me. I hear better things with say the Supernote due to its ability to link notes though

[scenic shuttle]

I'm not sure wdym by dumbs here but when u do look up online u will find a lot things like maybe khan helps u with functions

there's also waterloo website if u ever need it

[unique cove]

By dumbing down I mean that they don't explain it in a dumb enough way for me to understand and remember :')
I struggle a ton with memory and understanding and so when I find websites that can possibly help me with for example functions and then they use basic math knowledge and stuff assuming I know that (which is stuff I'm supposed to know, but either I've forgotten or I struggle to put it into that specific context without having it explained to me all over from the beginning) and when they do that I need to go to sometimes a whole other websites to look at the basics and try to make a connection - but that is not helpful as it just gets so messy in my head when everything isn't in the same place.
I'll have a look at khan and waterloo tho, ty

[cyan dawn]

Hi, could someone send me differentiation shortcut worksheet (product rule, quotient rule and chain rule, Im really weak in this area)

especially the quotient rule

[scenic shuttle]

I believe u know how to apply the rules, correct?

u can look for problems such as paul's or similar 🙂

[cyan dawn]

Mhm just need some practice

[urban silo]

Khan Academy is great tbh. I just started using it for my high school course today bc I was so stuck (and I don’t have a teacher to help me). They really explain things so you understand it.

[shell glade]

also very useful!

[main cliff]

[rocky terrace]

Do you have a thing for swedes

[jade furnace]

How’s Math Academy?

[odd parcel]

How shall I make short notes for JEE chemistry and maths
Don't tell me to summarise I can memorise that well but those small things deep stuff

[cyan dawn]

do you guys have any advice and tips for my final exam tommorow?

I want to do really well

[reef ocean]

unironically that for the night before, writing the exam well rested is important

most other things you can do to prepare really should be done with more time

e.g. taking one day to summarize each chapter/topic in your words or etc

[cyan dawn]

Caffeine might not always be the best, you might feel like going to the bathroom mid exam

[stray stone]

there are plenty of websites and video courses online! Is it ok if I dm you?

[pliant python]

Yes, of corse!!!

[stray stone]

dm sent 🙂

[azure inlet]

I'm looking for someone to help me with basic mathematics, studying complete functions and matrices.

I speak Italian and Spanish

[swift tartan]

!help

[wide crypt]

To ask for mathematics help on this server, please open your own help channel or help thread. See #❓how-to-get-help for instructions.

[swift tartan]

^

[gaunt ruin]

uni is eating me alive

any tips?

[gaunt ruin]

thanks

this is like my second or third week in uni

im already behind

[cyan dawn]

when should I drink coffee prior to my exam

[normal sleet]

Not the night before

[cyan dawn]

saved me

[normal sleet]

I have genuinely drank coffee the night before exams at some point

And for me at least they dont end up too well

[cyan dawn]

well what was it like

I’m curious now

[normal sleet]

9am exam and I slept at 5am

Lol

I did like a half of the paper

And the professor decided when seeing the paper "this student deserves an A"

[lyric rover]

how old is ppl in mathcord just wanted to know

[cyan dawn]

you must be naturally good in maths

[normal sleet]

Nah half the class got A, he was being merciful

[azure inlet]

Is there anyone who can help me study functions also is it good in Spanish

[raven kindle]

19

[rocky terrace]

billion

[swift tartan]

sometimes i think back to the study that drinking after studying helps ; and i feel like those researchers were just coping hard

https://alcohol.org/health-effects/drinking-while-studying/

i meant drinking alcohol if that wasn’t clear

[limpid hamlet]

ballmer peak amirite

[main cliff]

33

Sometimes I wonder if I should do another bachelors of maths because I sometimes like to believe I can do a PhD despite my late age

[lyric rover]

...

[craggy meadow]

hi

[lyric rover]

hi

[lyric rover]

shuold i take math major

[main cliff]

I mean I did applied stats in uni, and was terrible at it lol, then worked as a software engineer, don't really care of coding then hated it when I need to work on it professionally

I would like to try maths maybe? I seem to resonate with it a bit more, now I am sort of doing part time maths tutoring from tutorial centres

[raven kindle]

Yes if you are willing to exchange your soul for vast mathematical exposure

[lyric rover]

lol

[craggy meadow]

hello everyone

=)))

[main cliff]

What a steal!

[craggy meadow]

@main cliff nice to meet you

[lyric rover]

i mean... i still have time to think about it. maybe i should...

[lyric rover]

im only 13 :>

[lyric rover]

do you recommmend taking it if i take math olympiad

in my country

[raven kindle]

You have a good amount of time

[raven kindle]

Math olympiad is completely different from studying math

[lyric rover]

oh...

[raven kindle]

I'll let someone else explain it because I don't trust myself to explain well

But in a nutshell, once you start undergrad math you approach the whole subject completely differently. Proof-based and theoretical

[lyric rover]

ic

[raven kindle]

Homework consists of writing lots of lots of proofs

[lyric rover]

i mean in imo problems theres a lot of proof based stuff

[raven kindle]

and exams

[raven kindle]

Those are baby proofs

Actually I don't think most imo problems are proof based

Some are but

[lyric rover]

im pretty sure most...

[raven kindle]

Maybe

In any case the problems are more arbitrary

[lyric rover]

sigh. i can only get like around 17 in imo now

[rocky terrace]

Solve a millenium problem and get full ride to MIT as a tenured prof

Solve every problem

[rocky terrace]

No

You are just not trying hard enough 😔

Don't give up on your dream

solve every problem

You can do it

We can do it 🗣️ 🔥

[raven kindle]

I should be reading dummit and 🦶 😔

I left it in my dorm and I'm too lazy to fetch it which is sad

Groups which I think is chapter 1. i just started my algebra course

I really should be reading ahead

I have more prominent things to worry about like measure theory and chatting on Discord

I know what they are

No I just have some general mathematical exposure

This is my first actual algebra course

2nd

Yep

Yeah it's hard

I'm probably not good enough but I'm doing my best

Will lock in 🔒

Real analysis

That was the most advanced

By far

Everything else was kinda just to meet baby prereqs, like calc 4 and linalg

Intro proofs course

I would say that real analysis was the only serious math course I did first year

Survey of real analysis , topology, metric topology, Riemann integration

It was part of real analysis

I haven't taken a dedicated topology course yet

Yeah just baby pointset top

The stuff relevant to developing the theory of real analysis

the basics

🔥

Yeah I'm taking algebra next sem too then after that I plan on doing grad algebras

for 3rd year

grad algebra 1 and 2

if I do well enough that I can get in

Algebra 1 is groups rings fields

Algebra 2 is modules and uhhh

Lemme check

algebra 2 is modules over rings, structure theorem for modules over PID , Galois theory basics

so that'll be upcoming spring for me

I can't take a Markov chains course bc it conflicts with alg2

Honesty I might just not do a dedicated topology course at all

Not at my uni, not a requirement

I kinda just want to go through munkres myself

Maybe yea

I might have a change of heart

I mean I did a solid amt of pointset in analysis

But I see what you mean

I would have to do topology third year

Next semester is stacked already

Complex analysis, multivariable analysis, alg2

No it's one semester

Yeah I also do computer science so

Also they're like the 3 hardest undergrad math courses

Depends, this one is joint with the grad complex course

It's not one of those applied complex courses, it's all theory

But I think analysis in several dimensions is the hardest of the three

[lyric rover]

"hints on how to solve the collatz conjecture" was considered trolling

[limpid sinew]

I'm so nerdy - I calculated covariance and the correlation coefficient by hand for a stats problem earlier. 🤓

[craggy meadow]

uzu M 13 years old really

@lyric rover

[lyric rover]

hi

[craggy meadow]

hi

-))

[lyric rover]

welcome @craggy meadow !

[craggy meadow]

thank you

∫ ?

[lyric rover]

?

[craggy meadow]

add friend me please ?

=)))

[lyric rover]

suree

[craggy meadow]

oh thanks a lot

[rocky terrace]

it's literally peak

[rocky terrace]

Now imagine when you have infinite dimemsions

[desert coral]

are numworks calculators really that good

my stats teacher treats them like a gift from god and says that ti-84s suck

but from what ive experienced they are so miserable to use

[heavy needle]

Based

I need to learn complex and clifford analysis, and galois theory still

[raven kindle]

What would that be

Functional?

[safe harbor]

Intro galois theory kinda ass ngl

All math kinda ass ngl actually

I wanna be a Lego master builder not a fucking mathematician

[heavy needle]

Oh no

[safe harbor]

If you want I summarized my course, I can send you it

[heavy needle]

I would very much appreciate that actually

[agile fable]

https://arxiv.org/abs/2109.08158

[safe harbor]

Disgusting. Bastardizing the one thing I hold dear

[cunning summit]

Weird question.

What paper do you guys like using for studying?

I've sort of fallen in love with blank paper but it leaves some to be desired especially for graphing something quickly.

I'm thinking of playing around with graph paper/ the ones with a bunch of blocks lol.

[raven kindle]

Dotted paper is the best imo but blank is great too

usually i don't think too much about what paper i use because i type up everything afterwards anyway

[lapis sluice]

im used to doing normal work on 5mm squared paper and graphs on (1mm squares) graph paper

[rocky terrace]

I use notebooks not loose paper

But the notebooks have blank pages, no lines or dots or anything

[tame vector]

Question: why does (y-y1)=m(x-x1) exist when you have y2-y1/x2-x1??

[heavy needle]

I usually use blank printer/copy paper and my whiteboards

[lapis sluice]

for maths i mean

at some point i stopped doing maths and converted to 8mm lined paper and i havent run out of it yet

i think the lines are a litle to big for my preference but its difficult to find any other size of line so i just cope

[clear plume]

hello I am y13 and I want to apply for cam maths does anyone have any advice on how to prepare for the step

[tropic void]

I think only start doing timed stuff near the end

Focus on making sure you can solve the Qs first

Also starting prep now would be good

Also make sure you know the deadlines and processes for registration and stuff

[blazing merlin]

I usually had a rough idea of how much time questions were taking me before I started doing proper timed practice, but also don’t stress over that
Starting prep now is decent, but also make sure you leave enough stuff for closer to the time

[tropic void]

Step support programme online is pretty helpful

Ah yeah leaving stuff for closer to the time is useful

Also be aware that STEP gets much harder in recent years, as far as I can tell

[blazing merlin]

Yeah there was a change in who set it in 2019, and it got a fair bit harder

[tropic void]

Mhm

Oh you won’t be taking it but it’d be worth looking through old STEP 1 questions

It’d also be good to collaborate with anyone else at your school also sitting STEP, if any

I think there are also online and in person events you can sign up for to help with STEP

Do make sure that you’re doing your A levels properly as well

Also do not discount the mechanics or stats questions

If you can learn how to do them well they can be an incredibly useful source of marks

Limiting yourself only to pure questions is a risky strategy

[tropic void]

In general I would say that, at this stage, try to be very open-minded about the kinds of questions you attempt

I feel like having broad understanding is more useful for STEP than very deep understanding

At least from what I remember

If you’re extra you can keep a spreadsheet of the STEP Qs you’ve done

When you look up solutions, I’d highly recommend writing down interesting tips or tricks or insights you got from them, in a place you can revisit later

[clear plume]

ok thank you very much bro

[tropic void]

no worries, but not a bro ;)

[green terrace]

Hey all, we're taking a course in probability (last semester was an utter shitshow and we have/had to retake the course) and as misfortune would have it, we have to take the same professor again too

His lectures are very boring, he reads off the slides, he doesn't explain inutuition for why much of anything works, his homework has gotten slightly less nightmareish than last semester (no more 2-3 page computation nightmares yay) but how do we..stay engaged with the material? We struggle with sitting down and doing the homework, either because we struggle with the material or with just find it so utterly boring

[clear plume]

damn sorry 😭

thank you very much thougbh

[clear plume]

Ive already got my a* in maths 😃

[tropic void]

[clear plume]

did you apply cambridge?

[tropic void]

Yeah I went to cambridge for undergrad and masters

[clear plume]

wow

thats very cool

how did u know if had the stones for it

[tropic void]

The what

[clear plume]

because tbh i dont feel very confident ill even get an interview

[clear plume]

like that youre smart enouhg lol

[tropic void]

That’s more for them to decide

[clear plume]

yeah thats a pretty good point tbf 😭

thank you for your advice

[rocky terrace]

Is it free?

[tropic void]

No there’s tuition fees

[rocky terrace]

For yew kay nationals or for anyone?

I need to lock in real quick or else I don't think I'll be able to become a physicist 😔

[rocky terrace]

Oh I just realized you said "No, there's tuition fees"

I read that as "No there's no tutition fee"

[lapis sluice]

There are tuition fees for UK nationals (or maybe residents) and higher tuition fees for otherwise

Also for internationals some cambridge colleges (or maybe all of them?) add on an extra "college fee" for I don't know why. They don't charge this for home students

[rocky terrace]

[heavy needle]

Per semester? Per year?

[rocky terrace]

per second

for interntionals it's 350k per second

[blazing merlin]

For home students the legal maximum (for public unis, which is like all but 3 of them) is a little over £9k per year
Basically every uni in the UK charges exactly the maximum

[heavy needle]

So they charge exactly the maximum and are going broke?

Hilarious

That's a great price though

As an American, I could only dream

Yes, where I could get an associate's degree in mathematics which will take me up to calculus III and Linear Algebra, then declare that I'm done.

Or a slightly more useful but equally short degree in something I care less about

They're best if you're planning to go to one of the more expensive institutions in the first place, or if you are looking for like certifications and certain trades

Essentially yes

but it doesn't solve the problem of the expense of university for years 3,4

I'm already 30k under

[grizzled anvil]

Guys I'm applying to imperial in a few months does anyone have any advice with the admission tests (Engineering and Science admission Test, ESAT)

[storm jasper]

Of

Oof

[viral osprey]

*overspills ur nonstandard elts*

[raven kindle]

Slightly better than my schedule

It's rough life as a student yeah

Thankfully I enjoy the work in all of my courses since they're basically all pure math

[tight siren]

Typst/LaTeX 🇬🇧 🇨🇳 OCR

dump math formula and get typst/LaTeX code
https://github.com/e-zz/MixTex-OCR-WebRebuild
original:

\begin{CJK}{UTF8}{bsmi}
昨日再次提交 PR，滿足套件擁有者對梯形公式
$$\int_a^b f(x) \, \dd x \approx
\underbrace{\frac{b-a}{N}}_{\text{\begin{CJK}{UTF8}{bkai}梯形寬度\end{CJK}}}
\left[ \frac{f(a)+f(b)}{2} + \sum_{k=1}^{N-1} f \left(a + k \, \frac{b-a}{N} \right) \right]$$
的需求。
\end{CJK}

interpreted:

昨日再次提交 PR ，满足套件我们有者时梯形公式
$ integral_a^b f \( x \) thin d x approx frac(b - a, N) [frac(f \( a \) + f \( b \), 2) + sum_(k = 1)^(N - 1) f (a + k frac(b - a, N))] $
的需求 。

[mossy shadow]

vin100

[gaunt ruin]

i have been grinding like a madman but i don understand anything

exams are getting closer and closer

[sour mirage]

Which subject?

[gaunt ruin]

i have like 2 weeks to catch up on the material for 3 classes that I am taking

[sour mirage]

That’s rough
Being behind is difficult

When I’m behind I don’t even try to understand anything I just try to somehow compute what is necessary

But if it’s a proof based class you can’t rlly do that

[gaunt ruin]

anal 1, algebra 1 and algorithms 1, for anal we are covering vector valued functions , for algebra like binary relations combinatorics, modulus and congruency, divisibility and proofs, algorithms I can pass it but I need to catch up aswell

[gaunt ruin]

what are you majoring in?

[gaunt ruin]

university life is rough dude

[sour mirage]

Math

And maybe other stuff

But mostly math

[gaunt ruin]

you are from america?

[sour mirage]

Yeah

The last time I was very behind was in high school though

[rocky terrace]

I'm behind in life

[rocky terrace]

nice pfp

[gaunt ruin]

university is eating me alive dude

[rocky terrace]

It's eat or get eaten out there

Gotta start eating the university

[gaunt ruin]

jajajajaj

[rocky terrace]

Lock in bro

You got this

[gaunt ruin]

yes, ty dude. Will go back to the grind

I appreciate it

[sour mirage]

Thanks

[sour mirage]

There’s no such thing

[azure cedar]

grind math 6 hours a day

[grizzled anvil]

dw I am 😄

[grizzled anvil]

but the timing for esat questions are really difficult

[glossy breach]

@narrow ingot is the answer c to that limit n tends to \infty problem?

[narrow ingot]

what

[glossy breach]

this one

the 12th

[green terrace]

Use a help channel

[glossy breach]

i wanted to just check what the answer was

[shrewd trout]

https://www.rxddit.com/r/math/comments/1ngty3t/how_do_you_approach_studying_math_when_youre_not/

[edgy sierra]

i thought this was an infinite sum but it turned to just be a sequence (and a nicer infinite product)

note that 1/2^n > 1/2^(n + 1)

so if you do 1/2^n - 1/2^(n + 1) you will always get a positive number

good so that aligns with the choices

in sequences it's a good habit to check how this behaves for probably until n = 3 (i did this in my r.a. classes)

and another thing to note that 1/2^n =< 1 => 1/2^n - 1/2^(n + 1) =< 1

for p/q * r/s, where q > p, s > r, where q, s ~= 0, you can say that the entirety of p/q * r/s =< p/q or r/s

and this is an infinite product of small numbers (p/q and r/s are examples)

i'll let you figure that one out

[gaunt ruin]

dude I am so cooked

exams getting closer and uni is eating me alive

[swift tartan]

@gaunt ruin what exam?

[gaunt ruin]

like, algebra 1 and analysis 1

[swift tartan]

Oh same, what are you more worried about?

Well I finished algebra a while back, but taking analysis now

[gaunt ruin]

this is like my first semester in university

[swift tartan]

This is how I am studying for my analysis course

[gaunt ruin]

I am worried I would need to retake some courses

[swift tartan]

Oh dang, you took hard classes for your first sem

yeah 😬

I mean they are not necessarily difficult, but idk if you particularly acclimated to the uni environment

[swift tartan]

Keeping a positive attitude and focusing on your mental while maintaining the grind is really the important part you should take away from uni regardless of what major and life

[gaunt ruin]

I am not from the US, like my university doesnt let me pick the classes until the last year of my major

[gaunt ruin]

yes, fr

[gaunt ruin]

I appreciate it, but arent MIT classes hard to follow ?

[gaunt ruin]

how did it went?

[gaunt ruin]

As I said this is like my fourth week in uni and in less than 2 weeks we already got the first midterms, and I am behind, im kinda cooked

[swift tartan]

No? Any university should prepare you for the content because no one in the undergraduate level is making up content as they go live, usually. If your uni teaches the classes based on the textbook, then thats what makes it standardized

There is no difficulty association between universities, the only time this is the case is if the test questions are harder, or if there is a niche class. But the content will almost always be the same

Try to watch some of the lecture videos and maybe you might notice some familiar things https://ocw.mit.edu/courses/18-100a-real-analysis-fall-2020/video_galleries/video-lectures/

[swift tartan]

This is also assuming your Analysis I class isnt a intro to analysis but instead actual UG Real Analysis

[gaunt ruin]

its intro to analysis I guess?, like I need to pass Analysis 1, Analysis 2, Advanced Calculus, and, Probability theory before I get to take Real Analysis

I am not from the US, and here undergraduate degree takes like 5 years

[gaunt ruin]

yeah, I think my university teaches based on some textbooks, but idk, I feel like the rythm compared to pre university is very different

[swift tartan]

I see, then yeah you definitely have far ways, and because the courses are preselected, im certain the uni prepares you properly or else ppl wouldnt go

But if you ever have a analysis question, feel free to ping me in the help channels, ill def be happy to

Specifically an analysis question w/ proofs

[gaunt ruin]

analysis has never been my preferred cup of tea, like, I have always preferred algebra

[swift tartan]

Yeah im in the same boat

[gaunt ruin]

in preuniversity we also had classes of like, basic algebra and basic intro to anal

[swift tartan]

Oh also, #real-complex-analysis exists

Thats a perfect channel to get specific help even on problems for as long as its proofs based and not like constant help

[gaunt ruin]

well, most of my questions go into #multivariable-calculus unless we get too proofy I ask in the real analysis channel

[swift tartan]

Idk if id say they are easy, but thats really bc of professor determines how the course progresses; some may be harder than others

like Pete Clark in our uni has classes with a high fail rate, but the ppl who pass dont forget what they learn in them atleast

Looking at the sites i pulled up, its a lot brought out of rudin questions, so i guess its normal?

mit has a high enrollment of math majors comparatively to the other two, esp for dual degrees

Well, you still have to do the academic work for both?

I guess what do you have to do for your major?

maybe we should move to #math-discussion

Gotcha, most universities does not require a bachelors thesis here, but you would have to take classes concurrently with one another, and most of the time you would have to do an extra year

Unless you do around 5-6+ classes on avg per semester, its unrealisitic to graduate in 4 years for a double major

I mean, gen eds yes, but this isnt something thats considered as a part of your degree itself. There are two areas of institutional requirements which everyone thinks is stupid, and then degree requirements

institutional is just bc the uni wants money imo

my uni does not

Our major only takes in 4xxx level classes, anything 3xxx and below, which would be lin alg, intro to analysis, proofs, and the entire calc sequence are just prereqs but not for the degree

oh also diff eq ofc, not being counted

yeah idk maybe its just a uni specific thing, but i havent really heard that anywhere else afaik

Wait, you might be talking about a minor?

A minor in universities is if you take the prereq classes and then 1-2 upper level courses

Gotcha, yeah for us you can get double degrees and minors in anything. I considered doing Math and CS double degree and a minor in classics

I just stuck to maths and cs

need to study frfr now

took enough of a break, but fun talking!

!iam

?iam

,iam

[mossy shadow]

Gave you the studying! selfrole.

[gaunt ruin]

might be, I havent taken anything from them, though

[gaunt ruin]

is there any mit class that teach , multivariable limits

like, limits of multivariable functions

[raven kindle]

Whichever course that is an introductory course in analysis

[gaunt ruin]

fuck my life

[wispy zephyr]

i would assume the multivariable calculus would

[gaunt ruin]

do they?

[raven kindle]

Why

[wispy zephyr]

i mean i haven't looked closely but that's a standard part of multivar?

[raven kindle]

Analysis in R^n definitely, but multivariable courses vary in rigor

multivariable calculus*

I don't know how deep MIT multivariable calc courses are and i imagine there are more than one?

[gaunt ruin]

so do they cover or not?

[raven kindle]

What are the course descriptions

[gaunt ruin]

https://ocw.mit.edu/courses/18-02sc-multivariable-calculus-fall-2010/pages/syllabus/

[raven kindle]

Probably not

[raven kindle]

Well plenty of limits of multivariable functions are obvious

But there are functions that don't behave well

[gaunt ruin]

I am stuck with a multivariable limit

[raven kindle]

Yeah this is a computational multivar calc course , not analysis in R^n

[raven kindle]

What is it

[gaunt ruin]

I thought every multivariable class covered multivar limits?

[gaunt ruin]

hop in #multivariable-calculus

[wispy zephyr]

multivar limits are in the usual calc textbooks (stewart, thomas etc)

[gaunt ruin]

what book is that?

[wispy zephyr]

stewart multivariable calculus and thomas' calculus respectively

[gaunt ruin]

this is prolly the engineering curriculum from MIT

[tacit sapphire]

how one deals with boredom with subjects almost as if trivial

I don’t even have the motivation to attend class anymore

I absolutely don’t understand what the point is to do those calculus or analysis basically just one inequality away from the finishing line

Is it a good idea that one takes some course from higher year or maybe extracurricular classes? Or I should stick to my current curriculum for now as it will be a bit more interesting?

It is a fact that many high school actually teaches very elementary epsilon-delta so I would not say it could be hard for anyone.

[dire eagle]

make it interesting , there is always more to learn in every topic no matter how elementary, see also: / https://terrytao.wordpress.com/career-advice/learn-and-relearn-your-field/

Ofcourse if attendance isnt mandatory and you'd like to learn a new subject in the free time you get, thats also fine haha

[eager halo]

I have done this a decent amount. But the problem is almost always time constraints.

Its hard to get anywhere when you spent days exploring one theorem.

[golden juniper]

Hello guys.. I'm practicing mental math.. for basics any suggestions? because I feel hard

[limpid hamlet]

For me it's just that my obsession diminishes once I have seen a proof I feel that I understand

[storm jasper]

That’s why you need to move on to more and more advanced stuff

[gaunt ruin]

I need a book on congruent systems and Chinese reminder

[olive geode]

#book-recommendations

[cyan dawn]

How do I study for maths? What should I be doing in each of my classes and lectures

[raven kindle]

Try your hand at problems

at lectures, paying attention best you can

[cyan dawn]

Should I be taking notes in my math lectures or no

[quartz frost]

You should.

[cyan dawn]

My lectures are recorded tho

[quartz frost]

Then no.

[quartz frost]

Recorded on what?

[cyan dawn]

On a website

I can just watch that lecture anytime

[quartz frost]

Noting is more time-saving.

[cyan dawn]

True

[quartz frost]

Also, do you know if this server has any coloured roles?

[raven kindle]

Depends

if you can, then it's usually good

but some of my math lectures are too difficult to keep up with note taking and it becomes distracting, it is better to just completely focus

[cyan dawn]

Yeah I find taking notes on maths a bit difficult as well