serious-discussion

[neat lintel]

you threw the salmon back into the ocean

[burnt ledge]

freeer i hardly even know her

[burnt ledge]

hhahahahaha

[neat lintel]

hmm

how old is your brother?

[burnt ledge]

6

[neat lintel]

WHATT

LOl i was expecting so much older

[burnt ledge]

LOL

[neat lintel]

well i dont have siblings so

not even a 6 yo little rascal

so relatable

excpet i do the opposite of that every day

😪

[burnt ledge]

https://vm.tiktok.com/ZGdU6et68/

[burnt ledge]

😢

U shld get ur sleep licht

<---- does not heed her own advice

<---- preaches that which she does not practise

[neat lintel]

loll

[neat lintel]

probably!

[neat lintel]

XD

[burnt ledge]

i think im gonna take toginght easy instead of gameing

maybe i will read maybe not

music and something

[neat lintel]

(still playing)

[neat lintel]

music is amazing always

@burnt ledge good night !!

sleep well btw

[burnt ledge]

gn <33

[burnt ledge]

nah i just never closed it

[white ledge]

ñññ

ñ

ñ

ñ

ñ

ññ

ñ

ñ

ñ

ñ

ñ

ñ

[true zinc]

<@&268886789983436800> spam

[thin pivot]

whassup im new

[wanton coyote]

ingredience...

[thin pivot]

whats that mean

like ingredients

[thin pivot]

whats going on

[wanton coyote]

[thin pivot]

bro what

what is going on seriously

i need to know

[upbeat heart]

[thin pivot]

bruh

[faint light]

how old is he

[burnt ledge]

6

[faint light]

ngl i couldve scrolled down for like 1 second

[thin pivot]

does no one recognize me bruh

[faint light]

and found that out

[thin pivot]

seriolsly tho

[ashen parcel]

Hi guys I am new and was wondering what you all would recommend to learn numerical methods and textbooks for it

[thin pivot]

what stuff

[glass peak]

#book-recommendations would be the best place to ask! I’m sure people will know some really nice one

[thin pivot]

thanks for being a nice person and helping them

[fallen furnace]

thank you for thanking him

[thin pivot]

thanks bro

and YW

[thin pivot]

thanks for accnoledging me bro

[fallen furnace]

thanks for thanking me again

[thin pivot]

YW bro

[thin pivot]

TF

[fallen furnace]

lmao

[hardy iron]

<@&268886789983436800>

[ashen parcel]

Thanks

[upbeat heart]

[neon garnet]

<cos(-t),sin(-t),t>

i have a flight saturday 🍀

https://tenor.com/view/rose-byrne-sign-of-the-cross-pray-praying-gif-7679668783190774657

[radiant nest]

Where are you

[umbral kettle]

here

[radiant nest]

Ok

But I’m switching schools next year so

[umbral kettle]

im COOKED next year

[radiant nest]

I will have to take algebra 2 online

[umbral kettle]

im taking chemistry and biology in the same year

[radiant nest]

Because they don’t offer it at that school

[umbral kettle]

spanish 1 and spanish 2

geomotry

i cant spell

that looks wrong

idc

english 2

and then i have 2 spare spaces

1 is gonna be art 2 comprehensive

and idk the other

OH

wait

i have my business class to

so business marketing

(i hate myself)

i might have to drop art 2 and take accounting

so chemistry, biology, business marketing, accounting/art, spanish 1, spanish 2, english 2, geometry

technically i can drop chemistry but i wanna take anp in 11th

cleopatra is typing an essay

[neon garnet]

Anti women's visibility for nasa feels striking and further increases the importance of non white male visibility to me. i feel like they're shaping norms to push natalism. i dont like that.

it's also researchers rushing to archive the climate datasets that are being purged too. [1]

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

[neon garnet]

i'm still plugged into the news rn 😵‍💫 i hope you're so so well 🫶

[umbral kettle]

i stay away from that it stresses me out

[neon garnet]

i stay close to it so i can respond, but you're so valid for that.

[fresh comet]

oops

@umbral kettle welcome to mathcord!

I somehow got the wrong ping

[umbral kettle]

halloooo

i like math

sometimes

i like talking abt it

i like talking abt how it proves theres a God

thats fun

[neon garnet]

i like math sometimes too ☺️

[umbral kettle]

its fun

until u give me a graph

and then i hate u, i hate myself, i hate math, i hate everyone

or u tell me to find the area of a freaking 3d trapezoid

[neon garnet]

that sounds complex

i especially like learning

i love broadening my horizons

[umbral kettle]

"If johnny has a box of candy that has an area of 57 ft, and each candy is 3 square inches, how much candy does johnny have in the box?"

johnny has diabetes .

johnny is hyper.

[neon garnet]

i hope johnny has friends

[umbral kettle]

johnny now has been falsely diagnosed with adhd at the ripe age of 8 due to the immense amount of candy he decided to consume

[umbral kettle]

johnny better or his teacher might not be happy

[neon garnet]

johnny has a hard life

[umbral kettle]

"u got enough to share with the class??"
"yes, miss, i do"

i HATE word problems

[neon garnet]

ig johnny would wonder how much a volume of candy to share with each classmate

[umbral kettle]

well johnny better figure it out himself bc im tired of doing his chores ‼️

johnny and his prescription-aderal-he-doesnt-need can do it himself

MAYBE he shouldntve had the candy

[neon garnet]

im glad johnny is taking... algebra? so he can figure it out himself

[umbral kettle]

im talking abt pre algebra rn

pre algebra was "yay im enjoying this!!" and then algebra was\

https://tenor.com/view/soldier-ww2-traumatized-meme-eyes-gif-12257475272172704406

[neon garnet]

i liked algebra. i thought it was fun. c:

[umbral kettle]

anyways hows ur math life

[neon garnet]

oh it could grow
often crying over problems until i solve them.

[umbral kettle]

real

[neon garnet]

good thing im a toughie

[umbral kettle]

if i have to look at one more coordinate plane im going to spazz

[umbral kettle]

realll

[neon garnet]

mhm!! i feel excited to read more papers. it's nice to see people's techniques

there are so many amazingly smart people out there

i feel so grateful to share spaces with them ☺️

[umbral kettle]

there rlly are its amazing

like how do ppl just discover this stuff

[neon garnet]

ikk they're so smart.

[umbral kettle]

like wdym u spent the past 5 years of ur life explaining 1 math problem

i cant focus on a math problem for more than like 10 mins

[neon garnet]

slow and steady wins!!

[umbral kettle]

truetruetrue

[neon garnet]

okay i better go for now. time for some calls.

bye faye!! welcome to mathcord!! ✨

[umbral kettle]

ewwww u gotta go do adulting

[neon garnet]

oh, do you like faye or fifi?

[umbral kettle]

faye is preferred!!!! fifi is moreso ppl i know

[neon garnet]

nurturing my ✨social wellbeing✨

[umbral kettle]

fifi is just up there for looks \

joking

sorta

[neon garnet]

you go for that

okay bye faye!! 🎵

[umbral kettle]

byebye cleopaatra!!

[half kayak]

Favorite technique, go

Oh Oop, bye cleo

[boreal mason]

hey guys

[fresh comet]

hi! welcome to mathcord!

[neat lintel]

hello sir

[boreal mason]

I'd just finished my lunch

[round cobalt]

give me your lunch

[neat lintel]

gj

for me its 10:00 pm so

[round cobalt]

e-bullying lmao

[boreal mason]

wow

[neat lintel]

ik

[upbeat heart]

Wow

[fresh comet]

[hollow oriole]

who took chapter

[dense cairn]

Yoo guys

What do you think about ramanujan

[pastel tusk]

very cool guy

[north topaz]

hey ofs

[swift raven]

My learning support assistant at the college I go to now, she says to me " You are better at maths than me " You don't need the basics book, You're already good At Maths " what do I do? She has a B grade at GCSE Maths and is 21 years old, im 28 years old, doing functional skills level 2 Maths, she says maybe one day I will do A-Level maths what do I do please?

@pastel tusk what should I do?

[pastel tusk]

uh idk what any of that means why are u asking me specifically

someone else here will be able to help you

[north topaz]

I swear that's the guy's 6th account by now

[swift raven]

Well at my college we have a portal

Like with

Different arras to focus on

Called bksb

I keep getting

Level 2.6

And level 2.4

But some of the other areas I get

1.4

Or 1.2

What do I do?

And I haven't revised

Extensively

Do I have to go to MIT?

The Massachusetts Institute of Technology (MIT) is a private research university in Cambridge, Massachusetts, United States. Established in 1861, MIT has played a significant role in the development of many areas of modern technology and science.

@north topaz it says level 2

2.6 is equivalent to a C grade at GCSE Maths and I haven't revised that much, just relearnt a crap of what I already knew

[vivid kelp]

Any rocket engineers in here I need help with my model rocket @ me please

[swift raven]

Does Anyone have advice what I do please?

[swift raven]

What Is the question?

[vivid kelp]

PM me if you’re an engineer

@swift raven

[swift raven]

I'm a 28 year old man

With autism

[vivid kelp]

Lmao

[swift raven]

But i ts Aspergers

[vivid kelp]

I PMed you

@swift raven what link?

[swift raven]

I sent it in dm

[upbeat heart]

[thin pivot]

what has been going on chat

[jaunty ibex]

[neon garnet]

idk, but i like Pascals. k successes given n trials' probability.

[thin pivot]

omg lol

[thin pivot]

what happend here

[drifting lark]

What is Math really?

I know that may sound like a silly question... but Math seems to involve so many different things and so many different theories, while excluding others. For example Math deals with numbers, geometry, structures (like graphs and sets)... but yet logic and computer science aren't considered Math strictly speaking. Iirc, Poincare said something like "Math is the science of giving the same name to different things", but it seems like it is more than that.

[vivid halo]

logic isn't considered math

mathematics is what mathematicians do under their socially agreed upon standards and values for what this activity entails

physicists and computer scientists and loads of other people do mathematics or things close to it but don't always share the same views or standards as mathematicians do

[gleaming ginkgo]

Guys I am having a huge test in 2 days how can I prepare to have the best outcome? Any techniques or anything useful?

[storm sage]

I would say a lot of logic and computer science is considered math, and the boundary is often extremely blurry

Like Gödel's incompleteness theorems? Seems like math to me. P = NP? Seems like math to me.

Developing the fastest algorithm to perform a certain operation using a microchip with a certain instruction set? Idk, to me that involves math but isn't directly math.

But I could see an argument that it is math

If homotopy theory and PDEs can both be in the same generic category of "math", then I feel like what math is is pretty broad

A defining hallmark of math, maybe, is that mathematicians prove things within formal reasoning systems.

That tends to differentiate it from both philosophy (reasoning systems, but not formal ones) and science (empirically driven)

[thin pivot]

okay what is happening

[midnight quartz]

do past papers/similar questions, and make sure you get enough sleep the night before the exam

[thin pivot]

okay wait i need some help

9/2

whoops wrong thing

nvm

[craggy parcel]

by this definition all of computer science falls under math (which i agree with but im not sure if this is standard)

[true wedge]

why aren't logic and computer science math

i think that they are (maybe not nontheoretical cs)

eat this, unbelievers!

[drifting lark]

Well see that's the thing... I thought that Math and Logic were considered two separate but related disciplines. But that seems like an arbitrary distinction.

[true wedge]

i mean, Math operates under logical systems (99% of the time, classical logic), but logical systems can also be formalized mathematically

so it's kind of chicken and egg problem

note that the egg of a chicken is also of the species of chicken

[storm sage]

Not necessarily

A lot of computer science does not really involve proofs

I feel like a lot of machine learning research is purely based on heuristics, performance testing, finding new domains of application, new ways of adapting existing approaches, etc.

Maybe you might call that software engineering instead, but it seems like computer science to me

[craggy parcel]

oh i see. yeah i would call that software engineering rather than computer science.

i guess thats just semantics

what i mean is like theory of computation, complexity theory and such

[drifting lark]

Obviously Geometry is Math, but English Literature is not Math... I just can't figure out what makes something Math versus what makes something not Math lol

[true wedge]

formal systems

english is of linguistics, there is mathematical/computational linguistics which is math

but as a human language naturally english extends beyond that

[drifting lark]

Huh... that actually sounds like a really good definition

[true wedge]

the concept of a "formal system" can be described formally by...another external formal system

at the end of the day we just gotta describe some system informally but call it formal

i think that any uhhhh "turing-complete" type of formal system is powerful enough to simulate the rest

[terse fiber]

math is philosophy?
what is a point of life?
√5

[sturdy gulch]

not very math based but can i ask someone to check my reasoning for something astronomy related

[true wedge]

Yes 🗿

[sturdy gulch]

so if we could see constellations in the sky, if taurus was at its highest during noon, with the sun directly on top of it, wouldn't aquarius be at its highest at 6 am

[eager minnow]

I like this

[nova kindle]

Philosophy is the best

Everything is essentially math

[midnight plinth]

💀

[lunar coral]

I feel like

Considering the universal set of things I would require to speak irl

Of the two langs I'm learning

Japanese and German

They are complements of each other

If I'm met with a bilingual germapanese guy

Id probably be able to converse

[thin pivot]

nice im learning the same but also italian polish greek french korean and spanish

[true zinc]

In classical ZFC, you cannot have a universal set s.t. this set contains all other sets

[vivid halo]

I gives a $1500 if you fuck off

[thin pivot]

damn

[neon garnet]

some of us are considering leaving upon closure of the doe or shutdown of npr if it happened. when seems like an appropriate leave trigger to you? [[1]](#serious-discussion message)

[thin pivot]

okay

[coral iron]

just spent 8 hours studying dirichlet problem 🥲

it starts getting not boring after the 4th hour or so somehow

[neat lintel]

chat anyone did mathcounts

[near mango]

just submitted an REU application, i hope it goes well

[neat lintel]

gl

[wheat raft]

what is 'oberwolfach'? is it a uni or somethig?

alot of math folk seem to be there

[vivid halo]

it's a research institute

there are conferences/seminars/workshops there and people sometimes get invited to spend some amount of time there

it plays a somewhat similar role to the IAS and the IHES

[wheat raft]

ah

i saw so many pictures of that place i thought it was like a vacation retreat for math professors lol

[heady hawk]

Hey so if I wanted to become a quant what grad-programs would i apply to as a CS major in undergrad

[leaden torrent]

good ones

ideally "top 10" programs in math/physics/statistics

CS would probably theoretically work as well but most CS PhDs go on to do CS/development work nowadays

i put "top 10" in quotes because ofc there isnt a well ordering of programs or anything, just generally anything with prestige

[heady hawk]

what gpa is usually the requirement

like what if you did okay/bad on ur first few math courses but do a lot better later?

should i be retaking those courses

[leaden torrent]

retaking courses is worse than having a bad grade

grad schools dont really care about your first year grades as long as theres a track record of improvement and excelling

wasting time retaking courses for a grade is not evidence of that, it indicates the opposite

if you have Cs in your first year courses and As in graduate level coursework, schools will pay attention to the grad courses

if you have Cs in your first year courses and then As in those same courses, schools will pay attention to why you retook those courses in the first palce

not ideal

as for "gpa requirement", GPA is less important than reference letters for getting into a good school

but its very rare to get into a top university with less than a 3.8 or so in your last 2 years of education

some universities (e.g. princeton) care about your grades in "non-major" coursework, others dont (e.g. MIT)

[heady hawk]

Could we take this to dm?

[hardy grove]

is linear algebra hard

[lost forum]

"No", - a person who thinks linear Algebra is 2x+3=5 solve for x

[hardy grove]

the one with the []

is that hard?

[solid snow]

hard is relative

it might be difficult if you are new to proof based math

if you're learning it with proofs that is

but the subject itself is quite nice

[umbral kettle]

wave

[solid snow]

computationally it is very tedious

but it doesnt involve anything group breaking

[hardy grove]

jumping from
algebra 2 to calculus bc to linear algebra

difficult to grasp linear algebra or no?

[solid snow]

i dont know what your linear algebra entails

[hardy grove]

all of it

[solid snow]

i just explained why it may be difficult

is it proof based

[hardy grove]

yea im cooked then

I hate proof

[solid snow]

its usually a class where proofs are introduced

you likely have only seen proofs in geometry up until now

which are a bit unrepresentative of what actual proofs in math are like

[lunar copper]

I will go on to publish papers 🇮🇳🇺🇸

[solid snow]

im not sure why you pinged me with this

[lunar copper]

Haha 😆

[near mango]

I sometimes wonder what the point of a full year of geometry is. I don't think I've used high school geometry outside of like the occasional physicsy problem

[north topaz]

it's probably just filler to make sure kids stay in school

I really can't fathom a full year, a sem is the maximum I'd consider reasonable

[near mango]

The reasoning stuff is cool, but why not just teach basic proofs at that point

[north topaz]

wait your geometry doesn't have proofs?

double RIP

[near mango]

Well they were the 2 column ones

[north topaz]

oh true no I see what you mean

they really should stop relying on those so much

[near mango]

I legit don't remember how to do those

Or pretty much anything from geometry

[north topaz]

eh, well teaching proofs beyond those would be hard for many people

there's probably some well-resourced school where kids play around with number theory and discrete maths

[near mango]

I mean induction probably, but a basic "prove this divides this" doesn't seem impossible to me

[north topaz]

and explore proof by induction and so on

there's so much, Tower of Hanoi is fun and it can be done by middle school students

maybe not the formal induction but the investigating the pattern

[near mango]

Ye

[north topaz]

also like divisibility and so on

[north topaz]

yeah I mean we learn this from scratch in what, 11th grade, yeah

[near mango]

Ik Australia has proofs

Oh where r u from?

[north topaz]

we do! if you choose a high enough level of mathematics, of course

Australia, lol

[near mango]

Ah

I think that's a cool system

[north topaz]

yeah there's a lot of different levels, from "I will never be needing maths ever again"

to "I really want to study maths in uni"

[near mango]

Unsure how thatd work on a united States level with how much everything varies state to state here

I'm guessing that's the main worry

[north topaz]

true, I mean Australia does have states

we're a smaller country in terms of population though

so we only have 8 states and territories

[near mango]

We got 50 of varying sizes

[north topaz]

I know

[near mango]

I think trying to implement a nationwide curriculum change like that would be super tough

But idk. I think I'd have liked math more in that time if i learned some basic direct proofs

[north topaz]

https://www.qcaa.qld.edu.au/senior/senior-subjects/syllabuses/mathematics
if you're interested

[young quartz]

Is it just me or Competition Math feels like Competitive Programming but with annoying symbol pushing problems?

[near mango]

Oh also what's ur grading scale like

Idk

[north topaz]

really depends based on the state

but yeah if you wanted to know what the percentages are like here

[young quartz]

I legit have no clue how would one have the hindsight to make the logical leaps in problems of this nature

[north topaz]

so 60% isn't a failing grade here

it's like you didn't do that well, but you're not failing, maybe a C?

[near mango]

That's closer to what ours is like

[north topaz]

like if I use letter grades the standards are different so that'll confuse me even more

we got percentages instead and I find those easier

[near mango]

93% was an A for me

[north topaz]

like the letter grades are usually only for your major assessments

we have a lot of coursework too, it's not all exams

[young quartz]

how hard is it to get into uni in Australia?

[north topaz]

not very hard at all

if you just want a normal BA/BS

[young quartz]

that's good

[near mango]

So it's different from the British system I've seen

Ik theirs is hyper test focused

[north topaz]

sigh I only know the IB and ATAR conversion, it's hard to tell you what the American or Canadian standard would be

[north topaz]

yeah theirs is like 100% final exam, that's how IGCSEs and A levels are like

[near mango]

Britain's system is like if AP scores actually mattered compared to how well we write out personal statements lol

[young quartz]

Even with Universities with impressive Grad School/Industry Placement percentages?

[near mango]

Or more like if they were the focal point rather than just a component

[young quartz]

Here those type of institutes are very gatekept

[north topaz]

https://www.tisc.edu.au/static-fixed/statistics/ter-frequency/2024/atar-frequency-dist-2024.pdf

you might want to see this

[near mango]

Also man honestly I get kinda embarassed with the uni classes I'm taking

[north topaz]

nearly 60% of all students who graduate from high school can get in to an unselective course, like a BA or BS as I mentioned

Australian unis just say, we'll teach you the material better in first year

there's some review time but also we don't really do gen-eds

so that's how our 3 year undergrad even makes sense

[north topaz]

you can choose electives that make up 1/3 of the credits

[near mango]

Ik i don't actually want to be hit by a steep proofs learning curve, but I'm taking a probability/stats course I feel like should've been a freshman/sophomore year class for md

Me

[young quartz]

oh it's 3? interesting

[north topaz]

from outside your degree

[north topaz]

yeah

[near mango]

But nah it's a year 3 class

[north topaz]

yeah our prob and stats class in year 2, 1st sem was the easiest of the bunch

we learn multivar calc in the same semester

also like basic absalg if you're pure maths

[near mango]

Damn that's sick

[north topaz]

you also do DEs and RA in that year

[young quartz]

on par with smth like this course https://ocw.mit.edu/courses/18-05-introduction-to-probability-and-statistics-spring-2022/ ?

[north topaz]

yep so not probability theory, that's more like a 2nd or 3rd course

[north topaz]

yes

we have a 1st year stats class that covers some of the other stuff

like linear regression

and we do 2nd year stats which is about best linear unbiased estimation and stuff

[near mango]

For my uni as a stats/data science major

1st year
I - Calc 1
II-Calc 2
2nd year
I - applied stats, intro proofs
II - applied Lin. Algebra, Calc 3

[north topaz]

really we spread the material out over 3 courses in 2 years but go into a bit more depth for each one, it's all computational ofc

[near mango]

Applied stats is a really useless course depending on the professor

[young quartz]

how much heavy on the math does Data Science subs get?

[north topaz]

pretty damn heavy

[near mango]

I'm just a glorified math major rn so idk, but the real data science courses start next year

[visual topaz]

it's just stats

[near mango]

I might switch to pure math tho

[visual topaz]

it's not zeros of polynomials though

[young quartz]

of course lol

[visual topaz]

if you can read annals of stats you can do data science

or Bernoulli

or Extremes

[young quartz]

I assume Linear Algebra is quite handy

[visual topaz]

or, in the worst case, econometrica

[young quartz]

I am learning it rn

[north topaz]

yeah they keep pulling results from LA

I don't get it I found pure maths easier to understand ironically

with stats you're drowning in content each week

you really have to keep up

[young quartz]

maybe you have had some prior experience with pure math?

[visual topaz]

that's only if you're like, relying on math to do data science

[north topaz]

nah I had no special experience with pure maths beyond just high school

[visual topaz]

There's plenty of people who get by with broken knowledge of math

[north topaz]

other people wrote maths papers in secondary and stuff, I didn't do any of that

besides like there's not many people, it's a small crowd

[near mango]

Oh shit what happens?

[north topaz]

then the final is actually alright actually

but then uni semesters are short and sharp

[near mango]

We haven't hit the stats part of the probability and stats course yet, but it's been some pretty elementary computational stuff with the occasional basic algebra proof

[north topaz]

it's pretty common to only teach for 11 weeks and the 12th and final teaching week is a review week

and we also have a revision week before finals

[near mango]

Wait in a semester?

[north topaz]

yeah 2 semesters so there is a fair bit of break time

[near mango]

That's weird

What do u do for the rest of the year

Kangaroo burgers 🔥🔥

[north topaz]

either you're completely on break, or you're preparing for finals, or you're trying to get through and survive each week's content

[young quartz]

I think coursework runs for 12-14 weeks typically?

[north topaz]

yeah so there are 12 teaching weeks, the actual semester is longer

[near mango]

Oh

[north topaz]

cause of finals which run for 2 weeks here

and there's also a uni-wide revision week

other unis have 13 teaching weeks, IDK if the extra week helps or if it just prolongs the pain

[near mango]

Actually yeah our system is about the same except we get occasional breaks

[north topaz]

yeah also we have mid-semester break

that's why

[near mango]

Like a 4 day weekend for Thanksgiving, spring break, etc

[young quartz]

ig it boils down to adapting towards this scheme of fast paced learning environment. It was tough for me at first but over time I got somehow efficient at it.

I am from a developing nation and if I describe the state of normal non-gatekept colleges, you guys would be in shock

[near mango]

Damn

[young quartz]

there is no prescribed schedule for starters and it's like high school but worse

[eager minnow]

I think I'd prefer shorter, busier semesters, burnout seems to affect me after ~8 weeks no matter the course load

[near mango]

No prescribed schedule?

[young quartz]

no

guess that makes slacking off quite easy

[near mango]

Maybe ur uni is harder but honestly first week or 2 of classes I'm extremely depressed, but as soon as we get busy I get a lot more motivated with some ups and downs till the end of the semester

[near mango]

So how does attending class work?

[young quartz]

they just force you to attend shitty classes and waste your time...

[eager minnow]

I mean yeah first two weeks are easier, but I'm happy I'm finally back to studying
semester break depression is real

[near mango]

Oh like random cores?

[young quartz]

Poor instructors with sub par training

um it is what it is...no point in fretting about it

I enrolled in an online program just so that I can do somewhat decent courses

but my parents didn't let me leave my regular shitty college

[near mango]

I hope u can get the enriching uni life u want. At least u got the internet and the power to get books and advice for self study right now

[young quartz]

thankfully the competition at the grad level dials down substantially

nobody would wanna do a sophisticated Math/Theoretical CS program. They just wanna get employed at that point.

[eager minnow]

are you graded on a curve or is it just generally competitive

[young quartz]

like in entry tests?

[eager minnow]

ah

[young quartz]

well, the thing is there are too few Universities with quality education and way too many applicants

[eager minnow]

I thought the undergrad itself

[young quartz]

I am hopeful about transitioning into a good Masters program. Let's see how it turns out.

[half kayak]

Wdym break depression?

[eager minnow]

summer depression but break instead of summer

[neat lintel]

understandable

[tawdry sun]

I’m currently an undergrad considering math as a career path. How are you guys dealing with rigor? I’m spending most of my free time looking into fundamentals like analysis, but then I am confused to how competent you should be in proving theorems that are seemingly less relevant like theorems related to “dedekind cuts”

P.S. sorry if it sounds too much like a throwaway question

[surreal sapphire]

not sure what your exact question is

[vernal token]

Dedekind cuts aren't 'less relevant'?

one of the most common ways to construct R

[surreal sapphire]

i think as an early undergrand not fully getting theorems related to say dedekind cuts is not that important (its not what analysis is about) but with a few semester of study under your belt, they should be more or less instantly obvious

[high lava]

<@&268886789983436800> ?

[glass peak]

I genuinely remeber nothing about dedekind cuts beyond “they’re they annoying way to define R”

[mild nebula]

Just in general, you should understand that R is a construction from Q. This construction is non-trivial.

There's really not many cases where you should skip over theorems. Math is laid out in a way where you should understand X before going to Y. The construction of R is one of the rare exceptions that some authors skip.

That being said, Tao's book does go through an R construction in a very understandable way. Would recommend Tao.

[mint canopy]

I agree with things said above, but maybe I can provide an additional insight.

These small propositions about Dedekind cuts are technically important to the goal at hand — i.e., constructing the reals and showing its familiar properties hold — but what purpose do they serve for you? They are elementary but not immediately obvious propositions that you can use to practise proof writing, which is a skill you should aim to cultivate throughout your mathematical career.

[true wedge]

why is it annoying

i think it's more intuitive than some other ways

[mint canopy]

Dedekinds cuts have some fiddly proofs involved

I spent some time recreating all the arguments once and there are just some uh

there are some edge cases that just feel bad

I think the algebra of limits is far nicer, so using Cauchy sequences over Q is more elegant in that way

The advantage of Dedekinds cuts is that you get the properties you want to prove by a universal property. You immediately get that R is contained in every Archimedean ordered field with the LUB property, just by the construction. What does the Cauchy sequence definition get you? Well...

I think I could therefore say that the 'mechanics' of the Dedekind cut construction are annoying, where the Cauchy sequence's are nice, but the Dedekind construction has some cuter properties later.

[wheat raft]

hes asking you to be his co author

[still pilot]

What about a week's break in the middle of the sem?

Would that help you

[true wedge]

come on multiplication isnt that bad

[mint canopy]

Haha sure that's a great example

It's not that bad, but it's not exactly as elegant as what happens with the Cauchy sequences is it?

[true wedge]

I guess, but I still think dedekind is fairly intuitive, like all of the "edge cases" make sense

[mint canopy]

Well I should hope they make sense since the definition should work!

But I think it's still clearly less obvious

With the Cauchy sequences, you do the obvious thing. And that's great, right?

[true wedge]

Sure

[idle moat]

Hello guys I wanna ask something, may I?

[quasi jetty]

No need to ask “Can I ask…?” or “Does anyone know about…?”—it’s faster for everyone if you just ask your question! See https://dontasktoask.com/

[idle moat]

Ok ok jesus

So my question is , who's good at math here? Like really good

[pastel tusk]

a lot of people

it is literally the math server

[idle moat]

Yeah I know but I am asking

[high lava]

not me

[idle moat]

Well ok , 👍 thx anyxay

Anyway***

[high lava]

we have a few phders, so at minimum them

[tawdry sun]

Thanks for all the amazing comments. Genuinely didn’t expect such quality responses. I think @mild nebula and @mint canopy ‘s responses best answered my question in that you shouldn’t really be skipping over theorems and that you should try to learn proof writing in the process. I never looked into the Cauchy sequence construction of R and I skimmed over Tao so if I have a chance, I’ll def look into those. For some context, I work in a quantum-gravity lab and I am way more proficient in physics and their work culture relative to mathematics. I recently got told by a professor in math teaching me manifolds that I should begin to be really rigorous which I thought I already was. Looking into fundamentals and going over proofs in detail got me a bit flustered in terms of usefulness, but at the current moment, I don’t really think usefulness should always be the singular motivation (given the comments and recent experiences). Your comments were really insightful thanks!!!

[pastel tusk]

what did texit even detect there

[mint canopy]

My name!

[pastel tusk]

lmao

wait if i ping you

@mint canopy

[fathom swallow]

DiamondPanda16

[pastel tusk]

LMAO

[mint canopy]

Hm here is a thought

[pastel tusk]

im changing my nick to work like that in every server that has texit

[mint canopy]

If I write...

\def\x{\y_\y^\y}\def\y{x_x^x}$\x$

OK well that got messed up

but is that just about short enough to fit in a nickname...?

Maybe

Fixed ver: \def\y{{x_x^x}}\def\x{\y_\y^\y}$\x$

Apparently it's too long. Oh well!

[pastel tusk]

what does that even do

\def\y{{x_x^x}}\def\x{\y_\y^\y}$\x$

[fathom swallow]

DiamondPanda16

[pastel tusk]

oh

surely just $x^{x^x_x}_{x^x_x}$

[fathom swallow]

DiamondPanda16

[sick parrot]

thanks i hate it

[pastel tusk]

whaa

i swear my name was not blue before

ooh i got active role

[upbeat heart]

How

[pastel tusk]

by being active i guess

i think its automatic

[vale plover]

https://www.rxddit.com/r/math/comments/1iklgmt/stackexchange_cleo_mystery_cleo_is_finally/

[pastel tusk]

why are you collecting emails

i would do it otherwise but no thanks

[upbeat heart]

[surreal sapphire]

@neat lintel this isnt the place

[eager minnow]

we've had that once or twice, not really lol

[analog hedge]

does anyone know about remote internships by premier institutions for research in physics

for undergrad

[wheat raft]

@vivid halo can you loan me some opencries

im in severe opencry debt

[reef carbon]

@eternal hemlock you should NEVER say "this shit is easy", or anything to that effect, in front of a helpee.

• what's easy for you is not necessarily easy for everybody else
• people here come in all kinds of ages and all kinds of education levels and their life stories are different etc
• you cannot possibly expect everybody else's level of comprehension to be \geq yours in all respects

like imagine if you came here with idk a quantum mechanics question you were struggling with and someone else with "oh this shit is easy anyone with half a brain could solve this in 5 minutes" etc

not only is it not constructive, it's also just mean

[glass peak]

I mean I fully admit I don’t remember much about it, I’ve not seen the proof for like 4 years since I started learning maths

But iirc it’s just a little particular, and it’s certainly more annoying than just saying, take Q, stick on stuff until all our Cauchy sequences converge

It’s entirely possible I’d find it less annoying now, I’d hope so actually, but either way it’s the less succinct way to define R

Not that these are things that ever actually concern me, it can be done and it’s good enough for what I need

[true wedge]

i mean, for a real number x, take all of Q that is smaller than x

[glass peak]

And since I mostly do algebra I’m rarely working with R anyway lol

[true wedge]

it's pretty succinct

[mint canopy]

Danng, that is just shorter. Oh well.

12345678901234567890123456789012xx
\def\x#1{{#1}^{#1}_{#1}}$\x{\x x}$

This is almost short enough to fit into a discord username--just two characters too long.

[fathom swallow]

$\mathbf{Boytjie}$

[mint canopy]

Pretty neat I think?

I'm silly. There is a shorter one

Prev: \def\x#1{{#1}^{#1}_{#1}}$\x{\x x}$
Next: \def\x#1{{#1^#1_#1}}$\x{\x x}$

So now can I add in one more...

I can't. But it's darn close!

[jaunty ibex]

[neon garnet]

https://apnews.com/article/2025-elections-calendar-c7d8af00a52e6a772ea53d1f65a67f8c# upcoming elections!

[gusty socket]

:)

[neon garnet]

hi smay!! ☺️

i went to a fruit stand and got fresh fruit and lime and this powder called tajin!!

[north topaz]

always be yourself; don't de-smay

[shy shell]

If anyone has tried both tests, could you tell me which scores would be easier to achieve? I got a 108 on my last toefl, so I have to take another one, but the price is crazy high, so I'm considering doing the ielts instead if there isn't much of a difference

[gusty socket]

delish

i’m picking up a prescription today

[neon garnet]

yay get your prescription smay!!

[gusty socket]

lol u have the best emote collection

any superb owl fans

[burnt ledge]

Holy LaTeX golf

[mint canopy]

I mean it's mostly just me not being v good

[burnt ledge]

does

1234567890123456789012345678901234
\def\x#1{#1^#1_#1}$\x{\x x}$``` work?

[mint canopy]

But I thought it was cute

Ah no :(

\def\x#1{#1^#1_#1}$\x{\x x}$

[fathom swallow]

$\mathbf{Boytjie}$
Compile Error! Click the reaction for more information.
(You may edit your message to recompile.)

[mint canopy]

Annoying huh?

[burnt ledge]

WHY

why does it need an extra {}

[mint canopy]

Bc it becomes "x^x_x^x^x_x_x^x_x"

[burnt ledge]

Ohh

[mint canopy]

Sucks

[sharp mulch]

,tex ```latex
^^24^^24^^5c^^69^^6e^^74^^20^^65^ ^^7b^^78^ ^^32^^7d^^5c^^2c^^20^^64^^78^^24^^24

[fathom swallow]

Angetenar

[sharp mulch]

[mint canopy]

Nice

[burnt ledge]

Nahhhh that's fucked up

Oh wait a second

\x24 is $

youve just hexadecimalised it all

[sharp mulch]

[burnt ledge]

I see thru ur ruse

that just says $$\int e^{x^2} dx$$

[sharp mulch]

[burnt ledge]

it took me a while to decode that actually

bevause the ^ isnt encoded its just literally there

which is EVIL

and SNEAKY

[wheat raft]

anyone who does that should be barred from helping

its condescending

[ionic star]

it's the opposite

[true zinc]

does this imply you'd advocate belittling users?

[jaunty ibex]

[upbeat heart]

[wraith geyser]

Horrifying outlook. There's a reason why so many people are deterred from asking for help, and this sentiment is a gigantic contender.

[pale saddle]

Here’s your daily losing of hope in humanity:

In a movie theater, snacks are available to buy. At the end of the day, they are still in good condition, but they are all thrown away. I once asked if I could bring some of the food home, maybe feed myself or help out the homeless. They said no. You ever wonder why the dumpsters at the back are locked? It’s because they refuse to feed the homeless. This is happening with many other places all around.

We say this is an imperfect world, yet some people want to keep it imperfect.

[solid snow]

The dumpsters in the back aren’t locked where I live

[eternal hemlock]

How can we move orthogonally to time?

[surreal sapphire]

this is also illegal in e.g. france

though i wouldn't call what movie theaters sell food

[summer nest]

Fast food workers in the US get ordered to make the thrown out food inedible before doing so

[pale saddle]

fair but it’s one good example

[raven plaza]

I thought violating physics was illegal everywhere

[ionic star]

when you were 8?

[half kayak]

In either special relativity or general relativity, that’s impossible. I’m assuming ur talking about your own time axis and not others’

[raven plaza]

Well tautologically you always move along "your time axis"

There is no absolute "time axis", but there are directions that are "time-like"

You can only move in those directions

[open mauve]

you do physics Arki?

[raven plaza]

No

[open mauve]

🐐

[open mauve]

oh..

[plush ravine]

hey you seem familiar

[open mauve]

you're that racist and homophobic guy

[alpine bolt]

Oh

[long loom]

do you guys ever feel like your just parroting the math you study and you really don't understand it internally.

[solid snow]

No they dont, at least not universally

not even sure what that would mean

[summer nest]

Okay. I'm not of any authority on US fast food management so don't listen to me

[eternal hemlock]

To move forward in time is to travel to the future, and to move backwards in time is to go in the past. My question is: How can we move orthogonally to time?

[vocal vessel]

In some cultures the past is perceived in the forward facing direction and the future backward. The reasoning being the future is something you do not see so it is behind you, outside your field of vision.

[zealous garden]

Walk

[zealous garden]

Is it not also impossible to move orthogonal to others' time axes

Moving orthogonally to one's time axis corresponds to teleportation within that plane of simultaneity

Which is equally impossible in every Reference Frame

[half kayak]

Idk enough about SR to tell u that, but seems like ur right.

U also remind me about something with black holes. I think the closest u get to moving orthogonal to others’ time axes is when ur light cone (hence, ur time axis) tilts almost 45 degrees when u cross the black hole’s event horizon

[forest talon]

[analog hedge]

ayooo

what's good

anyone there

.

[idle dagger]

https://tenor.com/view/berserk-berserk-anime-behelit-berserk1997-behelit-scream-gif-24520246

[zealous garden]

Blackholes require GR

[high lava]

<@&268886789983436800>

(asking in multiple channels)

[open mauve]

then you just need to solve problems if you understand it internally

by solving tons of problems you'll realize, holes in your knowledge and you gotta stitch them up by learning and reading textbooks

[wraith geyser]

Yes, I agree with that!

I personally like to follow the principles of the Feynman Technique: if you can explain a concept, no matter how "complex" it might be at first glance, in elementary-level terms, then you have neared mastery of that subject!

[long loom]

thanks for the advice guys

[pale saddle]

You are not a good friend.

There are no true friends.

This is not pessimistic, this is reality.

Don’t use the term, “Fake Friend”.

Call them, “friend”.

[near mango]

Haha yeah good point Braden haha yeah lol haha

[pale saddle]

lol ty

[hardy iron]

What is blud yapping about

[pale saddle]

choice is an illusion of free will 😔

[hardy iron]

It's determined

[round cobalt]

would you like to explain

[pale saddle]

determinism vs free will

search it up there’s a whole debate around it

[untold sun]

philosophy

[visual topaz]

<@&268886789983436800>

[neon garnet]

https://youtu.be/dtkdDNlD8dE?si=22wLck2-8L42TCTS&t=1350
given likely administrative disobedience, congress' willpower bars constitutional crisis. leeja encourages making noise about this (✅) and annoy local representatives. "what are you doing to stop trump?"

leeja takes an anti fear mongering stance, yet considers the situation bleak and believes in sounding the alarm.

leeja's anti overwhelm action plan linked. 💗

[flat wyvern]

Vance 2028

[young pewter]

Anyone know where i can watch the Manchester city match for free

[tame egret]

Livescore

[neon garnet]

aoc mentioned a contributing factor for harris' loss was trump's incessant campaigning since he lost in 2020 against harris' 90 days. [1]

Leeja suggests focusing representatives by pestering them with, "What are you doing to resist this?"

Why don't democrats starting campaigning now? Amassing influence begins with picking candidates. How do citizens pressure dems to act?

[rugged bluff]

i swear on the trigonometric ratios I am so happy I don't have last semester's math teacher this semester

he was so bad 😔

he gave me a "Needs Improvement" on organization

I am easily the most organized person in my class

all in one binder I have:
My notes for every class
scissors
clip board
one of those pads with like 60 sheets of 11x8.5 inch graph paper
My pencil case, equipped with;
4 mechanical pencils
3 lead cartridges
3 erasers
1-hole hole-puncher
White-out
4 sharpies with differing amounts of fine tips
6 highlighters (yellow, green, blue, purple, pink, orange)
4-colour pen

and I always have a fully charged laptop

and a charger

and I always have my laptop in a case

like

erm

how do I improve more!?

I'd honestly like to know

[sharp knoll]

Just lock in 😭

[lavish iris]

What do you think

[valid lance]

pi

[surreal cypress]

a lot, guess

[slim root]

how many digits of 2 are there

[surreal cypress]

also a lot

[knotty kettle]

Alright

I've made a multifunctional server

Let's make sure that everything has been set up before I post the invite in an ad server

General chat - check

Chat in different languages - check

Voice chat - check

Voice in different languages - check

Rules - check

Role info - check

Announcements - check

Welcome channel - check

Self-promo channel - check

Leveling with Arcane - check

Bots - check

Bot channels - check

Gaming chat - check

Gaming forum - check

Regular forum - check

Game challenges - check

Separate channels for games - check

Onboarding - check

Hobbies - not check!

Still have some hobbies to add

Lemme do that now

Oh, and where are all the channel descriptions?

The forum setup?

There's quite a bit of work to do...

[slim root]

booooring

[mild parcel]

abortion is awesome

[slim root]

you should make an unconventional server that is difficult to navigate and with few purposeful channels

[knotty kettle]

Why should I make that?

[slim root]

because it's more interesting

[knotty kettle]

Is navigating a difficult-to-navigate server interesting?

[high lava]

itd be funny as fuck

[upbeat heart]

[brazen galleon]

No but it's funny

[neat lintel]

hi @everyone

[mild pivot]

Do u guys got a valentine

[open mauve]

yes

[mild pivot]

Gah damn

[open mauve]

It was revealed to me in my dream

[mild pivot]

😭

[high lava]

nope 😦

[mild pivot]

damn

[high lava]

-# anyone wanna be mine?

[patent fiber]

wtf

[rich magnet]

You should ask Benson Boone!

[high lava]

whos that?

[rich magnet]

The one that sings "Please! Stay! I want you I need you oh God! Don't! Take! These beautiful things that I've got!"

[high lava]

never heard of it

[rich magnet]

Really? It's like a big npc song. I thought it was the most streamed song of 2024? Either that or Birds of a feather

[high lava]

npc song?

wtf is that lol

[vocal vessel]

Don't forget to aggressively adjust your bulge

[rich magnet]

Everyone on tiktok was thirsting over it but I don't get it

It just looked uncomfortable

[vocal vessel]

He's not my type.

[rich magnet]

I like a guy who sings but looks wise he isn't my type either

[vocal vessel]

It's the thin mustache for me 🤮

[patent fiber]

HUH

[vocal vessel]

<@&268886789983436800> steam spam^

[lavish iris]

Say pepsi

[plain hearth]

ma-ta-i sexy

[gloomy current]

Bro, could someone help me in this problem?

Is to evaluate and integral

[eager minnow]

!da2a

[quasi jetty]

No need to ask “Can I ask…?” or “Does anyone know about…?”—it’s faster for everyone if you just ask your question! See https://dontasktoask.com/

[gloomy current]

so I just say the question then?

[eager minnow]

in a help channel

[high lava]

!help

[quasi jetty]

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

[lavish iris]

No way ca ești roman

[neat lintel]

debatable

[high lava]

<@&268886789983436800>

[mild parcel]

it was an old discussion, had to be there

[neat lintel]

gonna cry now

[potent anvil]

Any jee?

[fringe elbow]

Helloooo

[lost ridge]

I want attention.

[main rain]

me too

[fringe elbow]

Hello

[neat lintel]

low taper fade

[upbeat heart]

Sigma

[frank lantern]

hello

i am air 1

[orchid epoch]

Hi I'm shree. Majoring in statistics. I need help with understanding all the concepts and their applications and numericals in easier language. I really struggle in many topics.

[lunar zephyr]

boys i have a hackathon in 7 days. EE undergrad. have 0 knowledge about ML/AI. am i cooked?

[hardy iron]

Yes

But also not really

[leaden skiff]

nah you just need to figure out what you're gonna do with the remaining 6 days

[lunar zephyr]

Wdym

[lunar zephyr]

So do a mini project or just grind a textbook?

[leaden skiff]

since it's a hackathon, do some projects

a lot of AI projects don't require you to understand what's going on under the hood too much

[lunar zephyr]

Do you have resources to recommend ?

[lunar zephyr]

Topic is about optimizing a AI model

[leaden skiff]

do you mean finetuning or like optimizing like making faster?

[lunar zephyr]

probably the latter one

[leaden skiff]

hmm that's hard, you can probably ask around in some programming discords im not in any AI spaces specifically though

[fringe elbow]

5070

[frigid depot]

Please

Can somebody talk

?

[lunar ruin]

bout?

[frigid depot]

-1 Dimension

I have a conjecture

And I am bored

[brave flare]

in what field

[frigid depot]

What do you mean

Sorry I'm Spanish

I'm not so good at English

Explain please

[brave flare]

what type of math

[frigid depot]

Physics maths

Was that your question?

[brave flare]

could be a bit more specific but alright

lets hear it

[frigid depot]

Sorry

But it doesn't have an actual application

Why???

[sharp mulch]

<@&268886789983436800>

[frigid depot]

Ok I explain

[brave flare]

free math lesson

[faint light]

crankery incoming

[brave flare]

45 min

[frigid depot]

Sorry for the delay

I can't send the file

Do someone help?

Hellooo

[turbid ocean]

hi

what worries you today

[frigid depot]

I am trying to send a .txt file, but I can't

About a conjecture

[turbid ocean]

that is quite sad. it seems like you dont have the permissions to send such a file

[frigid depot]

Oops

How do I send instead

?

[turbid ocean]

hmm, that is perplexing

[unborn meteor]

send it in #chill

[frigid depot]

Ok

[turbid ocean]

indeed, you could do that

[frigid depot]

I sended

[zealous garden]

Power up

[pale saddle]

$\text{You } \frac{ \sum x_{i}}{n} \text{ the world to me!}$

[fathom swallow]

braden

[sinful ravine]

before anyone asks. this is for school. anyway

how many people here know what anglerfish are
react with ✅ for "yes, i know what anglerfish are" and ❌ for "no, i don't know what anglerfish are"

[sharp mulch]

I think you would have gotten more answers if you didn't say this was for school

[terse fiber]

I can tell it is a fish

[icy heron]

anyone who has seen Finding Nemo knows what an anglerfish is

[vale plover]

https://www.rxddit.com/r/math/comments/1ioo2x9/database_of_woke_dei_grants/

[peak tide]

what's up with "rxddit" and why does it work? i'm so confused

would be cool if there actually a notion of "underrepresented group" in group theory

[vale plover]

not sure; it's supposed to be roughly analogous to stuff like fxtwitter or vxtwitter (and its descendants, fixupx and fixvx)

basically makes links embed better in discord

[peak tide]

i see i see, was confused because www.rxddit.com redirects me to a github page

indistinguishable from magic

[vale plover]

surprised representation theory doesn't make it on the DEI chopping block!

[peak tide]

wait hold on, this list is actually real and not a parody??

i downloaded the database for fun

[brave flare]

yes its real

[brave flare]

its most likely that they just ran a search algorithm through all of the grants, looking for keywords

heres an example
https://www.usaspending.gov/award/ASST_NON_2317573_4900/
this probably got "flagged" because of the following section in the description:
" IN THIS PROJECT MSIDI WILL ORGANIZE TEN SCIENTIFIC CONFERENCES AND WORKSHOPS WITH THE LONG-TERM GOAL OF ENHANCING RESEARCH CAPACITY IN THE US BY INCREASING SCIENTIFIC AND NETWORKING ACTIVITIES FOR MATHEMATICIANS FROM UNDERREPRESENTED GROUPS, INCREASING OPPORTUNITIES FOR MENTORING AND IDENTIFYING ROLE MODELS FOR EARLY CAREER RESEARCHERS FROM UNDERREPRESENTED GROUPS, AND HIGHLIGHTING THE SUCCESSES OF MATHEMATICAL SCIENTISTS FROM THOSE GROUPS"

idk why its all capitalized

[peak tide]

apparently putting such statements in one's grant proposal was a requirement, so now people get penalized for following the instructions 😭

[neat lintel]

You just wanna

[surreal sapphire]

it wasnt a requirement, but things like this increase the chance to get funding

or used to anyway

[glass peak]

Exceptional, finally heard back about the frankly ridiculous marking on my analytic number theory homework, the professor did not actually read anything I said in my email and was incredibly rude in his response

Perfect, I fucking love this university

[vivid halo]

lol what did you say

[glass peak]

As part of some larger question I had to prove the dirichilit character mod 3 was completely multiplicative, it was defined piecewise in the question

I said it is a basic fact of modular arithmetic that ab mod c =(a mod c)(b mod c) from which the fact chi is completely multiplicative follows trivially

had 7.5% of that homework grade taken off , which is 2% of my final grade

[vivid halo]

[glass peak]

I emailed the professor being like hi thanks for the feedback and stuff but just to clarify what is expected from us, we’ve always been told that our writing should be understood by another person in the course as the standard and this being a grad course I’m not sure what more I could add etc

I also made the point of I have at the very least not demonstrated a complete lack of understanding and it deserves partial credit

He responded, no hello no sign off, “you are expected to answer the question”

So yeah I’m incredibly pissed off, the homework felt more like ticking off invisible boxes than it did writing a solution to the problem which demonstrated my understanding of the content

[vivid halo]

to be fair this is a bad proof

but yeah that is annoying

[glass peak]

I at no point disagreed with that in answering him, it does follow trivially but whatever

The main thing is that it wasn’t clearly laid out as an actual thing to be done, I saw it as one minor step out of like 15 for the full proof

The main thing I’m irritated about is just his response

But so it goes, whatever

[vivid halo]

yeah it happens

I've had worse

[glass peak]

As have I

[vivid halo]

tfw you decide to be a smart ass in AG homework and lose half of the points on the entire assignment

[glass peak]

How much of a smart ass haha

[vivid halo]

8 part problem that walks you through some sheaf resolution construction
this is too tedious, here is a 1 part construction of the same result using (co)monadic resolutions

[glass peak]

I mentioned losing 20% on a comalg homework last semester for using the quadratic formula I’m sure, that was pretty bad

But I did get a regrade

[vivid halo]

I suppose I should have expected to lose that many points by completely ignoring the problem structure

[glass peak]

I have angrily provided a second proof when a homework wants me to jump through hoops to prove a result I can do much more straightforwardly on multiple occasions

[vivid halo]

lol I lost so many points on some qual algebra assignment when we were doing Jordan/Smith canonical form

and all the problems were some tedious shit of like

compute normal form for this 9x9 matrix

all my solutions were "here is the 1 line of sage that computes this, with output"

[glass peak]

I was literally just writing sudo apt install sage

I did that on my last AG homework, some horrible computation and I fully just admitted to firing it in sage, said this is easily verified using sage, put a footnote saying or by hand if you’re a masochist and I got a tick next to that

[vivid halo]

I guess I could have not included the sage so as to not be a smart ass, but if they really expected to show a bunch of steps I'm taking that fat 0 there's no way I'm typesetting that shit

[glass peak]

The prof for my proofs based LA very specifically told us anything bigger than 3x3 is a computer job, there’s a reason we teach you to use sage and a reason we have a course on numerical linear algebra

[vivid halo]

BASED

[glass peak]

Quite frankly even computing the Jordan form of a 3x3 is a push for me

I do not enjoy menial computation

[vivid halo]

3x3 is fine lol

3x3 determinants are very quick to do by hand

4x4 is kinda annoying

[glass peak]

Yeah I mean I will do 3x3, it is mildly more effort to type that into sage than do it by hand

[vivid halo]

oh sure

[glass peak]

But anything bigger, there’s a reason VSCode lets me open a terminal

[vivid halo]

2x2 is instant, 3x3 instantly reduces to 3 different 2x2 determinants, but 4x4 now it's 4 different 3x3 determinants like bro please

[north topaz]

n! / 2 moment

[gusty socket]

oh the horror

[glass peak]

Random one but I can’t seem to find how to do this in sage, how can I convert a cubic not in weierstrass form into one that is? Sage seems to want everything in long W form, but I’m working with an elliptic curve that isn’t

Guessing you may know how to do that if it’s at all possible

[vivid halo]

Why would you want to do that

[glass peak]

Because I want to know the order of a point on my elliptic curve

[vivid halo]

Also there is simple algebra you can do to reduce the Weierstrass from the more general form

[cinder zephyr]

had a linear algebra exam where I had to diagonalize a 7 x 7 matrix. There were 2 issues:

1: It was one of 3 questions on a 15 minute quiz, the other two questions were proofs.
2: It was not diagonalizable despite being told to diagonalize it.

Now tell me that if you were in a time pressure exam like that and you found the supposedly diagonalizable matrix, would you guess the exam was wrong or you were wrong? Prof only gave full points if you identified it wasn't diagonalizable 😐

[glass peak]

Do I really need to go through and find a projective transformation into W form by hand?

[vivid halo]

Anyways there is a good reason why it keeps everything in long form and there are built in functions for finding orders of points lmao

[cinder zephyr]

I've included sage source + output on homeworks before lol

[glass peak]

Yeah no I mean the curve I have isn’t in long form so is there a way I can convert it to that form first, without doing so manually?

I can’t find anything in the docs about this but I could just be blind

[vivid halo]

idk off the top of my head either it's in the docs in which case it is easy, or it's not in the docs in which case it's also easy

[glass peak]

That is insane lol

[glass peak]

No problem, will continue to search, sorry for the ping

[vivid halo]

shouldn't there just be a command to run Tate's algorithm on your equation to get it into this preferred form?

[cinder zephyr]

that class took years off my life

[vivid halo]

lol

[vivid halo]

are you sure it even needs this in long form lol

[vernal token]

Ok I left out a lot I guess, didn't do the Gauss eliminations by hand

[cinder zephyr]

this is another one of the 15 minute quizzes 😭

freshman me was dying man

[vivid halo]

what sort of form are you talking about lol I'm confused

I'm assuming it's already in Weierstrass form

[glass peak]

It is not already in weierstrass form

Sage says it defines all of its elliptic curves via W form, so I need to transform it first before I can find the order of my point

[vivid halo]

what form do you have

[glass peak]

It’s just a general cubic

[glass peak]

15 minutes is actually insane

[vivid halo]

okay so just quickly change coordinates so it's in Weierstrass form

[glass peak]

I was asking if there’s a built in way to do that because I can’t find anything

It’s ok I can do it by hand, I’m sure it won’t be too awful

[cinder zephyr]

there's surely a way to do the conversion

given how much elliptic curve stuff I've seen written in Sage

but Sage doc search sucks

[glass peak]

I’m also sure at this point I’ve spent longer trying to find a way to do it in sage than it would’ve taken to just actually do it

[vivid halo]

honestly I think it's faster to do the change of variables by hand

[glass peak]

But yeah the sage docs aren’t my favourite

[static loom]

Yeah I feel your pain on Sage

[vivid halo]

sage is comfy and fine

mathematica and magma are pain

[cinder zephyr]

could try asking in the Cryptohack discord for how to do the conversion lol