serious-discussion

[neat lintel]

I wanna make a drone swarm

[latent zodiac]

(I love the DMCA)

[neat lintel]

DMCA laws suck!

[latent zodiac]

i fully support all legal action taken by the DMCA

(no i dont)

yes i do 👍

[neat lintel]

I've put you on a list

[latent zodiac]

DMCA did too 😔

[neat lintel]

How do I have fun with linear algebra

I am looking for this rare thing called applications of mathematics

[visual breach]

Depends on what is unfun with linalg for you

[void tundra]

how do I have fun with linear algebra

I find it boring because of it's applications

there are plenty of applications of linear algebra

[grizzled grove]

People find it interesting because of applications ...and you're saying opposite

[fervent pebble]

diff ppl can have diff interests i hope you're not finding this out js now

[fervent pebble]

linalg has a lot of theory if you just look at it that way

like

a lot

of theory

[void tundra]

I like the theory lol, it was mostly sarcastic

[fresh comet]

learn it without applications

go read FIS/Axler

[void tundra]

it's sarcasm

i use axler anyway

[fresh comet]

ah i see

then just ignore the applications lol

dont think about them

[neat lintel]

Let me know those applications, I wanna actually use linear algebra so I don't forget everything I've read for the 4th time

[void tundra]

within mathematics or outside of it

linear systems obviously have loads of uses

[neat lintel]

outside

[void tundra]

machine learning?

machine learning is a bit ehhhh ngl

[jagged forge]

i mean theres stats more broadly

[void tundra]

sure i guess

[jagged forge]

linear regressions happen to use linear algebra

[ripe needle]

Graphics

[visual breach]

That sounds like normal, even many mathematicians manage to forget them over and over

Has to have linear algebra textbook by side

[cursive apex]

What is additive inverse

And multiplicative inversee

[tender tulip]

I don’t know your background to explain this lol

[mental stratus]

inverse of what? Where

[tender tulip]

Abstract algebra but I’m unsure what level they’re asking it from

Like in what context

[mental stratus]

do you know about the additive and multiplicative identities

say in R

[cursive apex]

No

[mental stratus]

0 and 1

[cursive apex]

Like for 10th grade

[mental stratus]

So an additive identity in any set X is just that element for which adding any element x produces x itself. We denote this by 0 usually, so x+0=0+x=x given element x of X

0 has this property that if you add anything to it you get that back so 0 is the addictive identity of integers for example

[cursive apex]

Like it just gives the same value but different signs

[mental stratus]

this also works if you are working with real numbers as your set

[cursive apex]

Got it

👍

[mental stratus]

what

this has nothing to do with signs

[cursive apex]

What !??

[mental stratus]

you are confusing identity with inverse

yeah like what real number has the property that if you add any other real number (say x) to it you get the same number x back

[cursive apex]

Can u give example

[mental stratus]

5+0=5

0 is the identity in the set of real numbers

[cursive apex]

So always 0 is the identity

[mental stratus]

Id say we denote the additive identity by 0 normally but yes 0 is the identity if your set is reals, integers

Now, onto multiplicative idemtity

[cursive apex]

Ok

[mental stratus]

what should be that for real numbers?

same motivation as additive identity but for * instead of +

[cursive apex]

Tqs I got it

[mental stratus]

so what should be the multiplicative identity?

[cursive apex]

Like multiply with 0 ?

[mental stratus]

no?

does multiplying 5 with 0 produce 5?

[cursive apex]

Multiply by 1

[mental stratus]

yea

so 1 is the multiplicative identity

So for any number x its additive inverse is that number such that adding it to x produces the additive identity

For any x, its additive inverse should be the numver y, such that x+y=0

what is the additive inverse of 5?

[cursive apex]

0

[mental stratus]

does 5+0 produce 0?

[cursive apex]

-5

[mental stratus]

What number do you need to add to 5 to get 0

Yeah

So for any x that would be -x

This is the one where the value remains same but sign changes yada yada whatever you said earlier

what should the multiplicative inverse of 5 be?

[cursive apex]

What's the difference between additive identify and additive inverse

[mental stratus]

what do you think is the difference

there is one identity that works for all

0

every number has its own inverse

7 has -7

[cursive apex]

0

[mental stratus]

fuck

Im just bad at explaining

[mental stratus]

x*5=1

Solve for x

[cursive apex]

0

[mental stratus]

no?

[cursive apex]

Idk

[mental stratus]

What number multiplies 5 to Produce 1?

you can have fractions

[cursive apex]

0.2

[mental stratus]

Yeah

1/5

So you learned that additive inverse just means put a - in front

and multiplicative inverse just means reciprocal

[cursive apex]

Ok

[mental stratus]

What's the additive inverse of -5?

[cursive apex]

5

[mental stratus]

Whats the multiplicative inverse of 1/17

[cursive apex]

0

[mental stratus]

No

multiplicative inverse means take reciprocals

[cursive apex]

-1/17

[mental stratus]

No?

[cursive apex]

17

-17

[mental stratus]

does 1/17 *(-1/17) equal 1?

no

do you know what a reciprocal is

[cursive apex]

17

[mental stratus]

yeah

[cursive apex]

Yes

[fallen mango]

What?

[cursive apex]

I feel so dumb okay bye tqs

[mental stratus]

probably shouldn't have introduced identities like that

but id expect 10th graders to be able to handle this

it was fine up until the last three messages

ure just trolling now

[ruby relic]

Yeah, u are right

[woven whale]

wtf is this notation man?

put a \ in front

[lunar python]

💀

[woven whale]

1. who the heck uses # for the group operation
2. no one writes (G, #) out
3. why the fuck are you using i for the identity

[lunar python]

What happened to star

[woven whale]

i have so many questions

okay buddy

i bet you also write I for the integers

cuz Integers

algebra and reading aren't your best skills are they

[lunar python]

💀

Isn’t that a capital I

[woven whale]

identity functions are usually Id or Id_whatever set

or just 1

or 0

depending on the context

[lunar python]

Wait I’m braindead Ncm

I can’t remember my textbook

Tu uses 1

Yeah

For some reason I thought it was I

[plain owl]

It's not productive to go against norms because you like your version better

It's just annoying and confusing for others

I've never seen someone use i

[opaque dew]

How did a math department come up with a major electrical engineering application namely Transmission of symbols via free space and error correcting codes?

I mean these guys have little to no experience with voltages and currents but still came up with such great stuff.

[fervent flame]

what

[neat lintel]

Blud?

[neat lintel]

Peopel can be good at more than one thing?

[fresh comet]

@neat lintel what happened with admin

or it just sucks in general?

[neat lintel]

sucks in general

takes forever to get anything done

they're getting more and more restrictive with undergraduates (limiting grad courses, reading courses)

[fresh comet]

but you're not an undergrad anymore, so does that affect you in any way?

[neat lintel]

they don't listen to student complaints (my experience in my third year with my mat357 instructor breaking the homework rules)

[fresh comet]

okay this is true lmfao

[neat lintel]

@vivid halo can tell you about their experience too

[fresh comet]

uh oh

[neat lintel]

i'm not confident they wouldn't try to pull the same shit on me if i were a masters student

same/similar

[fresh comet]

oh, fair enough

[neat lintel]

it left a bad taste in my mouth

[vivid halo]

literally most incompetent admin I have ever dealt with it's insane

[fresh comet]

i didnt consider that they would limit grad students

tbh

[fresh comet]

stories?

[neat lintel]

i don't exactly know how they would, but i wouldn't put it past them

maybe nG can tell

[vivid halo]

other student of my advisor transfers there
admin: how much money is your advisor giving you
student: like $5k
admin: okay [deducts $5k from pay]

[fresh comet]

thats so messed up wtf

[neat lintel]

yikes

[fresh comet]

i am never going to see uoft admin in the same light again after this

[neat lintel]

my high school physics teacher told me "don't go to uoft, they don't give a shit about their students"

i went, and...

😬

got a good education tho

[fresh comet]

i literally went to visit my high school physics teacher today (we're on reading week), i watched her once again tell her class not to go to uoft lmao

[neat lintel]

maybe we had the same one

[lunar python]

😭

wild

[fresh comet]

she must have told our grade 12 class this at least 30 times over the semester

crazy

[fresh comet]

possibly, but i'm not about to dox myself lmao

[neat lintel]

too late, i already have your full name and address and

[fresh comet]

[neat lintel]

i bumped into my grade 11 chemistry teacher a little while ago

i'm actually surprised she recognized me

[fresh comet]

wow

[neat lintel]

small city...

i thought about going back and visiting my high school some time into my second year

but, uh, 2020, so...

[fresh comet]

ah

i've visited every chance i've gotten so far

thats 3 times this year alone (so far)

it helps that i can walk to my hs in 10 min though, vs commuting to uoft for 2hrs

[neat lintel]

doxxed!!!1!!

[lunar python]

😭

wild

bro is triangulating

[fresh comet]

he's actually going to be at my house by tomorrow morning

[lunar python]

get the hose

[cold lava]

2 hour commute? I could never 😭

[fresh comet]

i just learnt that a flight to montreal from toronto takes 1 hr 15 min

lmao

i might as well go to mcgill ig

[cold lava]

Lolol

Actually I remember this story of a student that actually took the plane to commute

[fresh comet]

oh from vancouver to uoft?

[cold lava]

Nah some berkeley student

[neat lintel]

demenage a montreal si tu veux aller a mcgill

[fresh comet]

there was some insane story like that i once saw on the uoft subreddit

[cold lava]

Apparently it was more affordable than rent

[neat lintel]

toronto
checks out

(ignore my lack of reading comprehension)

[fresh comet]

i wish i was better at french sometimes tbh

i dont know what the first word means

[neat lintel]

move (in the context of moving houses/apartments)

[fresh comet]

ah

[cold lava]

Same, french classes in quebec always brought my average down 🥲

[neat lintel]

in the imperative. so i'm telling you to do that

[fresh comet]

okay that makes sense lol

[neat lintel]

i'd like to be better at french

my french classes sucked ass

[fresh comet]

i didnt do french beyond what ontario gives you in grade 10

maybe i should have

[neat lintel]

i only went up to grade 9

i heard it doesn't really get better

[fresh comet]

i couldnt tell you, because i didnt do gr11/12 french

i have a feeling that they wouldn't have been pleasant though

[neat lintel]

my bf did all the french he could in his alberta high school. they don't go far according to him

although maybe an albertan high school has less reason to teach french than one in ontario

[fresh comet]

true

[neat lintel]

the first year french class at uoft was way too big for me to take it

[fresh comet]

i refuse to take any languages course out of fear of looking like an idiot

[neat lintel]

in my second year i took the first year russian language courses. i recommend those, especially if barnabas is teaching any

[cold lava]

Relatable

[neat lintel]

it can help you get that one breadth requirement out of the way

[fresh comet]

i'm almost done breadth actually

i have 1.0 credits to go

[neat lintel]

[fresh comet]

i'm doing an immunology course this semester for the biology requirements

i dont know why i signed up for this tbh

at least the class is somewhat interesting

[cold lava]

Was your decision to learn russian math related?

[neat lintel]

not at all

[fresh comet]

but i'm getting cooked by the terminology

[neat lintel]

my friend and i needed to clear the same breadth requirement, so we were on the lookout for cool courses we could take together

he suggested russian language

we went for it

it was indeed a cool course

[fresh comet]

funny, thats how i got dragged into immunology

my friend told me it'd be easy

[neat lintel]

it was a small (< 25 people) course, and by the second semester maybe like 15 people were in

[neat lintel]

i got told soc100 would be easy and it was the most tedious garbage shit course i've ever taken

[fresh comet]

sounds nice actually

[neat lintel]

don't believe people who say xyz course is easy

[fresh comet]

uoft class sizes are enormous usually

[cold lava]

That’s nice, personally I’m hoping to take a Japanese course next semester if my schedule allows for it

[fresh comet]

okay but, this was a very close friend (7+ years)

[neat lintel]

drop them NOW

[fresh comet]

its okay, the course is tolerable

[oblique flicker]

hello

disscussion 1 is way too hectic

[fresh comet]

discussion 2 is dead most of the time istg

[oblique flicker]

i like a more paced chat

d1 is the equivalent of people in a crowded room yelling over each other

tell me a bit about yourselves?

[gray glade]

how do I send images here bro tf

[wet blade]

u cant its disabled by the mods

[gray glade]

f

I wanted to share someone who is a math conspirationist

I never saw someone like that

I am so intrigued

[cold lava]

@neat lintel what math topic do you intend to specialize in for grad school? Do you normally decide that by the time you finish undergrad?

[wet blade]

you guys r grad or under grads ?

[cold lava]

I’m undergrad

[wet blade]

also where r u from just out of curiosity

[cold lava]

Canada

[wet blade]

so ryt now ur in uni ?

[cold lava]

Ye

[wet blade]

which course ?

[fresh comet]

first year undergradate student studying math and physics (hopefully); suffers from a major skill issue in both subjects

[oblique flicker]

Aw, don't worry! I almost failed my first year, and I had to retake some courses

[neat lintel]

i intend to do something related to differential geometry, but i'm open to other things (especially anything related to mathematical physics, like classical or quantum mechanics maybe)

[oblique flicker]

it's a process to adjust to the new workload

but I believe you can, the first year is literally the hardest to find your way around

[fresh comet]

oh damn, diff geo is probably the section of math i'm most interested in too (as of right now)

[lunar python]

MATHEMATICAL PHYSICS MY BELOVED

[oblique flicker]

I'm finishing my bachelor's this semester, and while it doesn't necessarily get strictly easier, you'll know your way around more i think ^^

[lunar python]

do qft with me

[fresh comet]

i hope so

[cold lava]

I don’t have a clue what those things are but that sounds cool af

[cold lava]

Did you study physics as well in undergrad?

[gray glade]

Just a random question, how common is to see people who claim that the big mainstream in math is trying to silence them because they solved some big problem like The Riemann hypothesis?

I never expected people like that to exist, but I guess they do.

[fresh comet]

in real life or on the internet?

[gray glade]

internet

[rocky shuttle]

Very common

[fresh comet]

oh, then i see it quite often lol

[gray glade]

oh ok

lol

there is a guy who claims he is the world's best mathematician and he discovered a new approach to calculus.

anyways, how y'all doin

[oblique flicker]

the thing you learn with math

is how you know no math whatsoever

[gray glade]

Btw, I am going to be a freshman undergrad next year for math bs, what can I expect on my first classes?

[rocky shuttle]

proofs

[fresh comet]

i feel like i know a negative amount of math lmao

compared to whats out there

[gray glade]

I am actually doing self study on some proofs rn.

[gray glade]

what about like calculus

should I expect to take calc 1 and 2 in a year?

[rocky shuttle]

depends on where you are

[gray glade]

like what university or what country?

[rocky shuttle]

both, but i'm referring more to the country

[gray glade]

Cause is most likely Penn State

[rocky shuttle]

yeah, idk much about the system there, but i guess calc 1 and 2 sound reasonable for the first year

[gray glade]

Sorry for this naive question, but what exactly is to get a pure mathmatics degree. Because I looked up and there is no such a thing as pure mathematics as a major. Is pure math an specilization or is it a tittle you get after grad school?

[neat lintel]

nope, just pure math. but i took quantum and classical mechanics in my last year

[gray glade]

Last question, should I try to get some classes done over the breaks, after semesters? I am seriously thinking of taking 1 or 2 classes during the breaks primarily because I will have nowhere to go during breaks and I would rather just study more.

[neat lintel]

offered by the pure math department, but, of course, these ARE physics-inspired

[oblique flicker]

in my uni you can actually do a Master's in pure math

i have some friends who're doing it

[cold lava]

Arrgh that’s so cool, I wish I had courses like that

[oblique flicker]

(and I'm doing pure math bachelor's)

[rocky shuttle]

I mean, if they're offering classes you're interested in, why not?

Depends on how busy you are preparing for exams or other things in your life

[cold lava]

Personally I think that’s the kind of question that you want answer yourself instead of taking other people’s advice, since it depends entirely on your own priorities

[oblique flicker]

And you can also test the waters, and opt out later maybe?

[gray glade]

ty y'all

[midnight briar]

hi

my prof said no more homework over email ,but i am physically unable to go to class

[oblique flicker]

is there another way to compensate for absence?

[midnight briar]

no

hes one of the only good profs so he places alot of repsonsiblities in us

[fresh comet]

421/461?

[oblique flicker]

but there should be like exceptions due to health reasons no?

[neat lintel]

yup, apm421 and mat461

mat461 was taught by boris khesin, who was a phd student of arnold (!!)

amazing professor. take a class with him if you can

[fresh comet]

oh wtf

thats so cool lol

i'm probably gonna go for 426 if i can

[neat lintel]

i took that with mccann for like, two weeks. i hated it

[fresh comet]

oh what 😭

[midnight briar]

yes but mines are not life threating

[neat lintel]

it felt like a first year physics course

and i didn't like the prof too much

[fresh comet]

is it prof dependent?

[neat lintel]

perhaps

[midnight briar]

im going to print it and email him

[neat lintel]

i don't really remember what i didn't like about the prof

[midnight briar]

or sneak into his office and put it on his desk

[fresh comet]

am i allowed to replace 426 with like phy483 then

how difficult is it to convince the department to allow for a course replacement for a program

[neat lintel]

How hard is it to send an email?

[fresh comet]

oh sending an email isnt the issue, i'd be far more concerned about actually convincing them that the course subsitution is valid

[neat lintel]

don't listen to that guy

[neat lintel]

i'm not sure. check in with the department(s)

i'd expect not, given their historical lack of lenience, but best way to find out is to ask em

[fresh comet]

i see

[neat lintel]

maybe look into it on the course listings or degree requirements or whatever, see if it's possible

do that before you email

[fresh comet]

it's definitely not in the degree requirements

emailing is probably a good idea though

i'll worry about it in a couple of years from now

[neat lintel]

i wouldn't know what to do about convincing them whether you can do it or not

[fresh comet]

tbh i dont either

maybe just beg

[blazing pawn]

Toronto moment

[neat lintel]

course substitution seems to be on a departmental basis, from a quick google search

https://www.mathematics.utoronto.ca/undergraduate/program/faq#program-inquiries-accordion-2

[fresh comet]

ah

[neat lintel]

looks like exactly what you want

[blazing pawn]

What a cursed place

[neat lintel]

the Program Requirements Wavier Form just links to the fucking math department website

LOL

[fresh comet]

what is this about btw

[neat lintel]

there used to be one page with all the forms you'd ever need. i can't find it anymore

[blazing pawn]

also hello tteppa

[fresh comet]

https://www.mathematics.utoronto.ca/undergraduate/program/forms

[neat lintel]

probably has to do with first years getting brutally fucked by mat157 because they don't know proofs

hi moth

[fresh comet]

what're these "strategies" that they speak of though

[neat lintel]

no idea

[blazing pawn]

Open book

read

[neat lintel]

i was just guessing

[blazing pawn]

Think very hard

[fresh comet]

damn, i never would have guessed

i suppose i'll just think harder next time

and i'll get a 4.0

[neat lintel]

that's what i did

went from getting a 63 or whatever in mat157 to a 100 in mat327 the following year

[blazing pawn]

the book says strategies for learning math not for getting good grades

[fresh comet]

100 wtf

[blazing pawn]

i think for the latter the best idea is to transfer universities

[neat lintel]

lol tsimerman was teaching it, he's a very generous grader

[fresh comet]

what changed though?

63 -> 100 is too much for just a prof difference

[neat lintel]

skill

i simply got good

[fresh comet]

will i get good next year

[neat lintel]

well, i know this isn't very useful

it was more like, oh fuck i did poorly in this class, what was i doing wrong

oh, playing apex legends for 8 hours a day is what i was doing wrong

not doing extra work outside of homework and class

etc.

[fresh comet]

i see

[fervent pebble]

practice

[neat lintel]

also

just my mat157 mark probably isn't representative of how my first year went

i did well in mat240/247

i reaaaally got fucked by 157

there was still a bit of "oh fuck, i gotta turn it around"

my second semester was trash

[fresh comet]

hm

i need to up my game for both 157/247 tbh

240 could have went a lot better

[neat lintel]

you just had to have taken it with meinrenken

those notes...

[fresh comet]

247 is with meinrenken

[neat lintel]

THOSE NOTES

[fresh comet]

so i'm hoping that i wont do as badly

[neat lintel]

can you send me his class notes

[fresh comet]

i can DM them yes

[neat lintel]

i won't tell anyone i promise

(i say, saying it out loud)

alright @fresh comet

here's a fun little thing no one told me in my first year

in mat347 you're probably going to see all of this diagonalization, jordan form, rational canonical form stuff again

all under one general theorem

[fresh comet]

oh?

what would said theorem be

[neat lintel]

these are all special cases of a general structure theorem for finitely generated modules over principal ideal domains

https://en.wikipedia.org/wiki/Structure_theorem_for_finitely_generated_modules_over_a_principal_ideal_domain

module = vector space over a ring
principal ideal domain = ring whose every "ideal" is principal (generated by a single element)

[fresh comet]

.

looks like i need to learn a lot of algebra

to understand anything you said or sent rn

if i'm gonna be honest though, there's a certain charm in not knowing wtf is going on in math

[neat lintel]

it never really goes away

[fresh comet]

i lurk the advanced channels sometimes and wonder how tf i'd ever study any of it (well enough to understand anything at all)

[fresh comet]

at least math is cool enough to make me want to keep studying it, despite knowing that i'll never know enough of it to contribute anything meaningful

[neat lintel]

despite knowing that i'll never know enough of it to contribute anything meaningful
how do you know that?

[fresh comet]

it's a good guess

probably a reasonable one too

but it never hurts to be optimistic i suppose

[sweet dawn]

What is "meaningful" to you? Contributing to mathematical cannon? Serving your country? Prestige? Teaching others? I think we need better mathematical writing, a clearer understanding of what we DO know, but is abstruse at best to most people. There are a lot of really really good causes that are absolutely lost when it comes to math/stat. Math makes people nervous, and we seem to be trusting it less. What type of work do you imagine doing?

[chrome karma]

dam this is really deep

[raven plaza]

Can get you free chicken

[glass peak]

Finally had the “non assessed just for feedback” homework marked for my algebra class, really really glad I did it. Literally received 0 feedback on it

[chilly dock]

can someone teach me integrals/trigonometrical equations(just the basic)

[cold lava]

I do the exact same thing

[cold lava]

That’s a terrible name choice for a theorem, way too long

[cold lava]

I can’t believe it, I actually somewhat understand all these terms

[fresh comet]

i dont know any ring theory

😢

[rocky shuttle]

ING theory

but with R

[lunar python]

Neither do I dw

[fresh comet]

ring theory with no rings

[cold lava]

Basically rings without the distributive property

[ember saffron]

Is there any guide on what to do if stuck in learning Math, I have no idea what to do cause I can't understand some basic concepts and stuff

[stable sage]

in a reduced row echlon form matrix whats the goal what are you trying to turn the matrix into

oh first non zero element has to be 1 in each row with all the once below it be 0

[neat lintel]

Lmfao

[neat lintel]

Should I attempt this?

[vernal token]

Attempt to what

[neat lintel]

rref

[vernal token]

Well you'll need at most 3! = 6 steps

[neat lintel]

how do you know that?

oh i see

nvm

[vernal token]

Basically similar to the proof of gaussian elimination, first row scaled times the other three, then you have (1, 0, 0, 0)^T as first column

Wait

Because you need to scale the "first rows" too

[neat lintel]

Despair

[vernal token]

[neat lintel]

I'm gonna

Should I

spend $100 on calculator

so i dont have to do this

[vernal token]

There is WA

[neat lintel]

Wrong Answer?

Web Assembly?

[vernal token]

WolframAlpha

[neat lintel]

Aye but i cant use that during a test

[vernal token]

Can you use a calculator?

[neat lintel]

Yes

[vernal token]

Really? Such an "advanced" calculator?

[neat lintel]

It says we can't and at the same time says we can

So i'll use it and if they ask blame the teacher for no writing the syllabus correctly

[vernal token]

It should take at most 4*4 operations**

Scale to make first entry 1, add multiples to three other rows

And that four times

[vernal token]

Took me a little more for the first column because I didn't follow the procedure I wrote above strictly

Or else I would have had fractions

[neat lintel]

looks like torture ong on ong

[vernal token]

Well now 63 is a multiple of 9

You can right away get one 0 there

I would make 63 to 0

Then add last row to first

Then we have -1

And we can use that to make the 58 to 0 without fractions

But the numbers will slowly get large

But that should just be because of this system

[vernal token]

Probably in an exam you wouldn't get a randomly picked system but something that cancels more or less nicely?

Well I guess this one isn't a random one either because you can always create these 1s nicely

[visual breach]

God, discord UI devolved once more

How bad can it manage?

[fresh comet]

it did?

[visual breach]

On mobile

[fresh comet]

huh. it hasnt changed on mobile for me yet

[jagged forge]

me neither

though i think i had the experimental ui turned on

maybe that became the new ui?

[visual breach]

What is experimental ui?

[jagged forge]

i forgot, but there was an option to toggle it on

in the settings

it was just a redesign they were working on

[visual breach]

For me, it has this huge search button that does not work (no response when clicked).

[agile compass]

Why do i get redirected to a random help channel instead of the original channel i was on everytime i click back from another discord server to this math discord server and how do i turn this off

[surreal sapphire]

does this only happen for this server?

[agile compass]

Yeah

[surreal sapphire]

that is ... very odd

seems like a discord issue, you might want to contact support

[neat lintel]

it happens to me sometimes too

it's probably just discord being bad

don't expect it to ever get fixed

[surreal sapphire]

you certainly cant expect it to get fixed, if you dont contact support

[neat lintel]

I'm on the verge of passing out but i must study math

[raven plaza]

Throw your books out the window

[solar hawk]

This happen to me too

[fervent pebble]

it only does it for me on mobile

never had it happen on laptop

[stable sage]

matrics

we are doing that in out linear algebra and analytical geometry class

[fallen mango]

You gotta love matrix multiplication

[glass peak]

You just failed the Turing test

[fallen mango]

What?

[glass peak]

Only a computer could possibly enjoy matrix multiplication

[fallen mango]

Its relaxing

[latent edge]

Wanna try 100x200 matrix?

[fallen mango]

Im afraid i havent gotten past 32. Sorry

[glass peak]

This mans life will change when he learns about sage or matlab

[raven plaza]

Why relax when you can have MATLAB relax for you

Also if MATLAB is short for matrix laboratory then is it pronounced MateLab

[onyx reef]

the second discussy

hm

[rocky shuttle]

mate

[tall minnow]

the higher you go the less you have to actually calculate matrix multiplications, and you just write them symbolically instead

though arguably the pain of computation in the intro course is needed to appreciate the convenience of the canonical forms

and the power of pure maths in general. linear algebra is a dividing line where people get to learn something from both the pure and applied perspective

[rocky shuttle]

\

[neat lintel]

Matrix multiplication is easy compared to what lies ahead 💀 ||when you have to solve them algebraically using expressions like 1 (transpose) * A||

[latent edge]

I prefer the latter

[bronze pelican]

A student wrote 26/13 =/=2, therefore contradiction

🤦‍♂️

I can't make this sht up

[latent edge]

what the heck

[neat lintel]

yo

[sonic sentinel]

???

26/13 neq 2 IS a contradiction?

is this some inside joke

[jagged forge]

i think the student showed that 26/13 = 2, then said "but 26/13 =/= 2, so this is a contradiction, qed"

[sonic sentinel]

ah k

funny but not that weird

i would guess writing the proof involved keeping track of many stuff?

[lunar python]

sounds like the kids I grade in my precalc class 😭

[tidal sun]

kids are stupid

wait do i count as a kid

[lunar python]

judging by that name

[jagged forge]

nah biggus dickus is a boomer joke from monty python

[peak tide]

boomer spotted

[lunar python]

Maybe I’m just a youngster

Idk I’ve only seen holy grail

[jagged forge]

apparently monty python and the holy grail was not popular in the uk

but it was like, a huge hit in the us for some reason lol

[lunar python]

idk came out too long ago for me to remember

I watched it on netflix

😄 D

[sick kite]

life of brian is good

[neat lintel]

they are right tho

[tawdry pecan]

i mean did they ever prove that fractions are well defined? Might be onto something

[neat lintel]

Hey chat, I'm a computer science major.
Which one of these should I select?

nvm, they want me to write an essay. Can't do that

[untold sand]

least lazy cs major

[neat lintel]

I know my strengths

Not tryna yap about how the color of my skin will be beneficial for everyone else

[untold sand]

???

[neat lintel]

???

[untold sand]

Oh i see

I see it now

I see

Ok

[neat lintel]

we see

[untold sand]

Yea

Yep

[neat lintel]

Indeed

[untold sand]

Yuppity yup

Mhhm

Thats right

[untold sand]

Can u teach me how to rizz

[untold sand]

Pls

[neat lintel]

No

[cerulean harbor]

How does one rank a super duper fast growing function on the fast growing hierarchy

[untold sand]

Google tree(3)

[cerulean harbor]

I have my own function im trying to rank

Its written in a programming language though since im not familiar with advanced math notation

[cerulean harbor]

function H(a,n,b)return n==0 and a+1 or n==1 and a+b or n==2 and a*b or b==0 and 1 or H(a,n-1,H(a,n,b-1))end function f(x)local function mt(c)if c==0 then return setmetatable({[0]=setmetatable({},{__index=function()return function(x)return H(x,x,x)end end})},{__index=function(t,n)local d=math.ceil(math.log(n,x))t[n]=setmetatable({[0]=function(x)for i=1,x^d do x=t[n-1][x](x)end return x end},{__index=function(a,i)return function(x)x=a[i-1](x)for j=2,x^d do x=a[i-1](x)end return x end end})return t[n]end})else return setmetatable({mt=mt(c-1)},{__index=function(t,n)t[n]=setmetatable({[0]=function(x)for i=1,H(x,c,c)do x=t.mt[x-1][x](x)end return x end},{__index=function(a,i)return function(x)x=a[i-1](x)for j=2,H(x,c,c)do x=a[i-1](x)end return x end end})return t[n]end})end end return mt(x)[x][x](x)end

LuaU

[leaden torrent]

have you ever heard of a tab key

why is this formatted like this

[cerulean harbor]

minimized

im on phone so i cant send txt files

[leaden torrent]

i see

unfortunately i am unfamiliar with the language so i'd have no clue how to parse this

[tawdry pecan]

yeah I was gonna say the same thing

[leaden torrent]

lua is very similar to pseudocode so i can read it if its formatted sensibly

but this... is not lmao

[tawdry pecan]

yeah wtf is mteatable lmao

maybe you could try explaining what your function is doing in natural language?

[jagged forge]

this reminds me of when roblox programmers used to minify their code to try and obfuscate it

lmao

[tawdry pecan]

if this is minimized then luaU is a bulky-ass language lmao

[cerulean harbor]

this is literally roblox code lmao

[leaden torrent]

they basically turn tables into things that work kinda like classes

[cerulean harbor]

im trying to send it via notepad

[leaden torrent]

not exactly like classes but close enough

lua has no OOP so you need workarounds like this

[cerulean harbor]

But its gonna leak my identity so ima find smth else

[tawdry pecan]

L self-doxx

yeah im interested though

Do you know that it always halts, also?

[leaden torrent]

anyway, my first impression is that this is nontrivial to compute anything useful about

[cerulean harbor]

https://pastebin.com/tqxY6wjd

[tawdry pecan]

like not mathematically, just intuitively

[leaden torrent]

and would require a few weeks of mathematical analysis

[cerulean harbor]

i just wanted to see how fast of a growing function i could create

[tawdry pecan]

Yeah but how do you know that it even halts for f(2) or more

like what strategy were you using to make the function

[cerulean harbor]

Hyperoperation, infinite sequences (like mini FGH’s but much faster), recursion, and i want to say fixed point iteration but its really iterating on the concept of iterating on the concept of…

[tawdry pecan]

wha

concept of what you cant leave me hanging like this man

[cerulean harbor]

oh yeah

its the concept of iterating on the concept of iterating on the concept of iterating on the concept of iterating on the concept of iterating on the concept of iterating on the concept of…

how many layers these things go in are based on what input really

and it balloons really large first

and during

[tawdry pecan]

yeah

Do you know javascript, or c, or something other than this? I dont really feel like learning about metatable rn

And also, I would save this function, and start with a simpler one to analyze first

[cerulean harbor]

I can explain it really simply

[tawdry pecan]

oh sure i guess, thx

[cerulean harbor]

basically those metatable parts are the infinite structure

Sequence i mean

So fgh[0] is the base function

Then fgh[1] iterates on fgh[0]

Then 2 on 1

…

The function inside the __index is the base function

And then theres series’s of fgh’s

Ok

Here

__index will run the function its set to when you index a nil indice

Thats it

I used that to create ~recursive infinite structure

where you can index any indice

[tawdry pecan]

yeah im still not sure what's going on, sorry

Ill download the code to look at later maybe, but id really start simpler than that if this is the first time you've done something like this

[cerulean harbor]

Okay, dw its fine

I could walk you through it in a vc sometime if ur really that interested

but not atm

[tawdry pecan]

maybe at some point, yeah. Maybe look at Goodstein sequences https://en.wikipedia.org/wiki/Goodstein's_theorem , you might get a good idea of how to prove things about stuff like this

[wet glacier]

also can u open a new question in the same channel??

[bright hill]

@deep mango I drank 4 shots of tea

It's 4am

[tawdry pecan]

wow i hope you survive

[bright hill]

I'm so fucked

[tawdry pecan]

whyd you change it

[bright hill]

Shit of tea?

[tawdry pecan]

yeah that sounds way more dangerous

i wouldnt want to drink 1 of those let alone 4

[charred shore]

https://strawpoll.com/jVyG8Q7G6n7 VOTE

[surreal sapphire]

stop posting this, this is turning into spam

[neat lintel]

The flat earther being in second place is wild

Considering this is a joke poll, Vermin Supreme being on it is so insulting. They are actually a good candidate

[fresh comet]

wait so, @light needle

[light needle]

ok

[fresh comet]

what happened

[light needle]

oh im not fully sure

my good friend at a time who was like a cheerleader

[latent edge]

weird

[light needle]

said that she just, casually revealed medical info about them

which are protected by law

[fresh comet]

yeah, isnt medical info a pretty big deal?

[light needle]

yeah it is

she got fired p quickly after

[fresh comet]

cant you get thrown in prison for leaking it

[latent edge]

how was your medical team in your hs

esp the therapy ones

[lunar python]

Wild 😭

[light needle]

medical team? idk really

[latent edge]

mine were like "just dont be sad lmao"

[light needle]

the counselor was good though

[fresh comet]

oh we had none lol

[light needle]

i got called into his office an erm

[fresh comet]

no therapy, that is

[light needle]

incident... lets call it

[lunar python]

Lmao

[light needle]

and he was good at the therapy thing

[lunar python]

Your school counselors work?

Ours don’t 💀💀💀💀

[fresh comet]

fr

[lunar python]

They basically tell us to do less work when the work isn’t the issue

😔😭

[light needle]

oof

[mossy minnow]

My school counselor tried his best

[latent edge]

I got called a lot for therapy in my english classes cuz my english teacher was calling me mentally ill person every single time he sees me and in front of everyone...

[lunar python]

Stopping work causes the issue at home lmaooooo

[light needle]

well to be fair my incident was a bit emberassing

[fresh comet]

my physics teacher had a lot of criticisms regarding our counselors, which i mostly agreed with

[lunar python]

Uh oh

Bro got pantsed

[light needle]

i was like, trying to make a meme in my english class

[lunar python]

😭😭

[light needle]

and so on an essay i wrote like super edgy shit for fun

[lunar python]

Bruh

[latent edge]

lmfao

[lunar python]

😔🥺😭

[light needle]

and the teacher was concerned something was wrong with me lmfao

[latent edge]

LMFAO

[lunar python]

I got called in 8th grade for analyzing a character of death in a book

And calling it too homicidal

💀💀

No shit it’s death

[latent edge]

my english teacher would often say "slavery is good we should bring it back"

[lunar python]

The fuck

[fresh comet]

wha-

[lunar python]

Are you sure you lived in Ontario

[latent edge]

yeah

[lunar python]

And not like Alabama

[latent edge]

I'm seriously not making these stuff up

[lunar python]

💀🥺😭

💀💀💀💀

[fresh comet]

yo

[light needle]

wow

[fresh comet]

deltoid

[light needle]

this is wild

[fresh comet]

your high school sucks

fr

[light needle]

for ontario specially

[latent edge]

i wanna leave canada tbh

[lunar python]

This sounds like southern US America

Hates math

Hates black people

💀💀

Hates education

[lunar python]

Don’t come here it’s not worth it

[light needle]

america will be all that turned upto 20

[lunar python]

The thing abt America is it’s so lopsided

[fresh comet]

i'm scared of going to the US lol

dont want to be shot

[neat lintel]

canada sucks
us sucks
...

[lunar python]

Like there are some amazing things and people and then you have so many actually like mentally ill people rolling around

[fresh comet]

EU!

[lunar python]

Go to China nothing bad happens there

:DD

[lunar python]

Ok that’s not a real concern

💀

[light needle]

it is!

it is a real concern

[neat lintel]

Let me guess... ontario?

[fresh comet]

was a quip, but it is a partial concern too

[latent edge]

yes

[light needle]

one of the reason I lefts was because of this

[lunar python]

Idk maybe if you live in a big city

[neat lintel]

wo bu ai zhongguo i don't want to be detained forever

I had similar experience

[fresh comet]

ahh, pinying i can read for once lol

[light needle]

no i mean like, did you see the string of shootings that happened, where e.g. black guy knocks on wrong persons door by mistake, and gets shot

[lunar python]

I’ve never felt at risk of anything like that (admittedly I live in rich land but still nowhere even close)

[light needle]

like the issue is that the right wing psychos have the guns

[lunar python]

America moment

😭😭

[latent edge]

real

[lunar python]

Give everyone guns for no reason

[fresh comet]

i hear about mass shootings in the US every other week

its crazy

[light needle]

like we had a major hate crime here in waterloo a couple months ago

[latent edge]

zao shang hao zhongguo

[mossy minnow]

i live in a country with a high crime rate but ive never felt scared of getting shot

[light needle]

where some guy came into a gender studies class

[latent edge]

I heard about that

[lunar python]

Uh oh

[light needle]

and stabbed 5 people

but no one died

[lunar python]

the fuck

[latent edge]

yeah gen studies

absolutely wild

[lunar python]

I was not expecting that

[mossy minnow]

yea

[light needle]

if this were america it would have been a shooting

[lunar python]

😭

[light needle]

and many people would have died

thats what i mean

[lunar python]

America :DD

Idk for some reason I don’t think I’ll ever leave

[fresh comet]

@neat lintel LMAO

[neat lintel]

Nah, the guy isn't in jail. they became police chief

[lunar python]

Probably because I’m mentally ill

[light needle]

its the same issue of right wing extremism, but in america the nutjobs have a gun

[mossy minnow]

Home is home

[neat lintel]

hehe

[lunar python]

Half the government is also the nutjobs

Lmao

[neat lintel]

as soon as i hit enter i realized i've already been dooming so much recently

[fresh comet]

the US terrifies me in many ways tbh

[neat lintel]

i should doom less

[light needle]

ever since i came to canada my dooming like

ceased

lol

[lunar python]

Play doom the video game!

[fresh comet]

i've only been to Boston, and that was one time like 7 years ago

[light needle]

I was so mad and scared in america and I dont really feel that here

[mossy minnow]

they shouldve retired. my grandpa cant even speak english anymore

[lunar python]

Nice Canadian is wild

The myths are true

Canada makes you overly nice

I’ll never give up my American right to be angry!!

[light needle]

lol

[mossy minnow]

Is that also an amendment?

[fresh comet]

TTC has had a lot of these types of incidents recently

[light needle]

oof

[fresh comet]

i'm always on edge now about being pushed onto the subway tracks

[mossy minnow]

oh yeah i feel like its only developed countries that have hate crimes

[lunar python]

Well they’re not crimes in other countries

[light needle]

That is definitely not true lmao

[lunar python]

They’re just life

[neat lintel]

TTC is basically a mw2 lobby with all the slurs flying around

[lunar python]

💀

[fresh comet]

actually though

[light needle]

like try being a muslim in india and tell me no hatecrime

lmfao

[mossy minnow]

yea

[fresh comet]

there's a lot of hate going around in the stations

[mossy minnow]

i live in belize so i cant really say

[neat lintel]

this one time i was waiting in a nearly empty station and some guy at the end of the platform was just shouting the n word into the tunnel

not even at anyone

[lunar python]

What

[neat lintel]

just... into the void

[lunar python]

😭😭😭😭

Someone skipped his meds

😭

[solar hawk]

hello marlins

[mossy minnow]

ello

[lunar python]

Oop

[fresh comet]

yeah... thats quite bad

[neat lintel]

ain't the worst i've seen

[lunar python]

Are you sureee this isn’t ameircs

[fresh comet]

canadians can be quite hateful too

[solar hawk]

huh

[lunar python]

Yes but this sounds like a murica story

Such a murica story

[neat lintel]

do NOT ask canadians who live north of toronto what they think of natives

[light needle]

Canada is like a less extreme america basically

always remember

[lunar python]

💀😭😭😭

[fresh comet]

hey... i live north of toronto

[lunar python]

Maybe I’ll move to China no xenophobia there

[neat lintel]

north of... the GTA

does that help or no

[fresh comet]

ah

[solar hawk]

can u learn a language from college courses?

[mossy minnow]

the ccp suck bro

[light needle]

is waterloo in GTA

[fresh comet]

yes

[solar hawk]

and why is everyone in discussy 2?

[fresh comet]

but its not the best way imo

[light needle]

fuck discussy 1

[solar hawk]

they work better than HS?

[lunar python]

This is the joke

[neat lintel]

nope

[fresh comet]

perhaps lol

[mossy minnow]

oh mb

[fresh comet]

GTA can be whatever you want it to be

[solar hawk]

grand theft auto?

[neat lintel]

GTA is halton peel york toronto durham

[lunar python]

💀😭

[light needle]

lol

[solar hawk]

https://media.discordapp.net/attachments/514187873088438275/938609172621197312/comments_of_the_deranged.gif

[lunar python]

What is Canada

[solar hawk]

i got u john

[fresh comet]

couldnt tell you, i havent done any

[solar hawk]

ok

[lunar python]

But a miserable pile of secrets

[neat lintel]

never seen more drug deals out in the open than in oshawa in broad daylight

[lunar python]

Have at you fiend!

[lunar python]

Hey maybe I should move there

Drugs 😋

[fresh comet]

my cousin told me that her high school has students bringing handguns in their backpacks and selling heroin in the washrooms

[neat lintel]

if i didn't have to worry about money or working then i'd probably live somewhere north of oshawa. sufficiently in the middle of nowhere

[fresh comet]

which is insane

[lunar python]

Handguns in backpack is wild

[neat lintel]

i would actually like to live in rural alberta but... lol...

[lunar python]

Drugs is more believable

[neat lintel]

lmao...

[light needle]

bruh

L

[neat lintel]

maybe northern ontario is equivalent

[fresh comet]

i cant verify the claims

but i see no reason why she'd lie

[neat lintel]

look i visited banff and all the other tourist places and got pilled

i got mega turbo pilled

[lunar python]

A kid got expelled there for having a gun case in his room

And a kill list

[light needle]

well im going to alberta this summer

[lunar python]

Of the kids in his wing

[light needle]

so lol

[lunar python]

😭😭

[neat lintel]

where to?

if it's edmonton don't go near the bushes at the parliament building

[light needle]

lol i see

[neat lintel]

[light needle]

https://sites.ualberta.ca/~cosy2024/

this idk where u alberta is

[neat lintel]

u of alberta is in edmonton

[light needle]

ic

[neat lintel]

it's right next to a cool bridge

and a river

it's just south of the downtown area

that's about all i remember

why does it have the @cold needle butter building

[fresh comet]

looks kinda cool tbh

[latent edge]

looks yummy

[surreal sapphire]

american "architecture"

[neat lintel]

this is in canada

[surreal sapphire]

which is in america?

[neat lintel]

canadian architecture mogs american """architecture""" any day

[surreal sapphire]

why does it have no windows

[neat lintel]

they use linux

[surreal sapphire]

i have no retort to that

[neat lintel]

🤣🤣🤣😂😂😂😂🤣💀😂😂🤣🤤

[cold needle]

This is crazy (first discussy ping that hasnt made me roll my eyes)

thank you for amazing picture i love it

[oblique flicker]

it looks like lego

[wet glacier]

Looks like prison

[tall minnow]

I have seen art museums in America that look more striking

[small dust]

happy birthday

[cold needle]

thank you

[mystic ivy]

welcome

[bright hill]

Shit, the new ask pronouns is actually fire

Nice, He/Him doesn't overwrite ask pronouns!

[mystic ivy]

goes apeshit

[sour fern]

@everyone i hate math

[scenic patio]

you could begin with your lecture notes if you're studying

[scenic patio]

it hates you too

[solar hawk]

What’s that

Like you’re saying when I write something write lecture notes

And then adapt it into a book?

[scenic patio]

Yeah, maybe... if you think it's a good idea

There's many people doing that

I did it with a non maths subject last year. Now I'm doing it for Multivariate Calculus and I get to add beautiful stuff like 3d graphs while learning the subject

My professor is happy she'll have good notes to teach from, next session onwards

[solar hawk]

O THAYS cool

I’m not there yet tho

[scenic patio]

Yes... Looks beautiful

[scenic patio]

You should start with a small course or something!

[solar hawk]

Like algebra 1?

[scenic patio]

That should work... I would recommend a subject where you can sacrifice some interaction if you get what I mean. Because you'll be devoting more time to note taking than you usually do with pen and paper... And that's why I switched from Sequences and Series to Multivariate Calculus because I find the latter easier to cover up in case I miss parts of the lecture (or can't focus) while typing