serious-discussion

[rancid meadow]

just dont go to the west coast moth

[nimble shuttle]

I am go to Harvards.

[odd narwhal]

Harvard is pretty cringe, they require subject gre

[rancid meadow]

why arent u applying to penn moth

[blazing pawn]

blue circle is me

GPA vs SAT

green means accepted

[rancid meadow]

wtf

[blazing pawn]

(this is zoomed in)

[rancid meadow]

someone got a 1600 at ur school?

[blazing pawn]

(and for early decision)

yes probably val

Many such cases

idk tbh slim i have no idea if anything i does looks good on a college app

*anything i do

[odd narwhal]

Truncated y axis

[blazing pawn]

ya idk if thats a thing but i hope having a math prof rec will be helpful

[broken scaffold]

??

[odd narwhal]

Bruncho no

[blazing pawn]

i think i will have good letters

[nimble shuttle]

I have not asked for letters yet

lol

oops

[blazing pawn]

I was made to ask early

u probably should soon jon

[rancid meadow]

cant u just email a prof and be like "look at all my math acheivements pls tell the committee to accept me 🥺"

[blazing pawn]

the person at primes said that my columbia profs letter was extremely positive

[nimble shuttle]

yeah I just forgot to email my teacher

[broken scaffold]

coconut mall

[blazing pawn]

I dont think theyre supposed to do that

But they did tell me

khovanov

[thorn brook]

I forgor 💀

[blazing pawn]

tell me about my letters

and whats in them

[rancid meadow]

are u applying to columbia

[blazing pawn]

No jesse im not applying to anywhere in the city

[rancid meadow]

columbia seems cringe

[blazing pawn]

dont want to live near family

[rancid meadow]

good choice

maybe ill just write the lsat this year and become a lawyer.

[blazing pawn]

Woke

[rancid meadow]

ill see u at harvard moth

[blazing pawn]

Woke [2]

[rancid meadow]

obviously a corpo lawyer though cuz idc about humanity and just want to sit in a corner office on the 50th floor and sip whiskey

[blazing pawn]

ya i have no idea lol

probably a good thing to ask

yea

[rancid meadow]

ya i think itd be wise to ask people at harvard how they deal with first years who know what sheaves are

[blazing pawn]

kek

they reject them

[rancid meadow]

good

mind corrupted

[blazing pawn]

as they should

[velvet dagger]

What about first years who know what copresheaves are?

[blazing pawn]

begone, wench

[rancid meadow]

they go to mit (derogatory)

[inner finch]

lol

[odd narwhal]

Is there even such a thing as a copresheaf

[rancid meadow]

yeah. take a presheaf. flip it around. you got a copresheaf

[blazing pawn]

[nimble shuttle]

[latent forge]

lol

[modest rune]

ban dami

[modest rune]

Its just a functor

Oop didn’t see ultras

Sorry

[deep mango]

Turns out these are actually just functors.

[odd narwhal]

Why is that tho

[deep mango]

I have no clue

[odd narwhal]

Lmao

[sick burrow]

wait so what exactly did Emmy Noether do

she like developed a lot of early algebra right?

what was the state of algebra before her

actually what is just the history of algebra in general

because I know when Galois did his work he thought of things very differently than we do now

[odd narwhal]

Ah ok

[deep mango]

Something like "abel ruins everything"

[sick burrow]

"abelian" group you mean just "group"?

[limber perch]

omg abelian is named after abel

i'm so woke

[deep mango]

Abelian grapes

[crystal stone]

abelian means commutative group

Should be called all commutative group

[sick burrow]

yes, so just any group

[crystal stone]

or abelian rings

[sick burrow]

non commutative objects are a lie

all finite groups are a subset of a symmetric group and symmetric groups are obviously abelian because that's what "symmetric" means

[crystal stone]

what about matrix multiplication

[deep mango]

Commutative objects are a lie.

[frail lagoon]

any group is a subset of any other bigger group if you just relabel the elements

[odd narwhal]

Respect abel moonbears

Any group is isomorphic to the quotient of some free group

[analog salmon]

turns out, the part of math where you actually have to write the paper is annoying

[crystal stone]

Yes

Probably the worst part

Remember having to write up problem sets?

That was bad too

[analog salmon]

especially since I'm an undergrad working with a postdoc so I barely know what's going on lmao

[glad grove]

non-abelian groups? cringers

[glad grove]

I barely know whats going on in general I just learned set theory like 2 weeks ago and I'm still unsure of my grasp on it

[neat lintel]

you learned set theory? prove the axiom of choice

[limber perch]

suddenly mr.#hip and cool and funky fresh goes quiet

interesting

[broken scaffold]

I think proving axiom of choice is out of my reach personally

[astral marsh]

@cold needle

[cold needle]

oh my god

that's so cursed

[astral marsh]

It's on my laptop now

[cold needle]

lmao

[astral marsh]

top right corner

[cold needle]

nice

[astral marsh]

Now if a professor ever looks towards me during a lecture for whatever reason

They will see it

[cold needle]

corect

oog

[analog salmon]

god i wish i had that

[thorn brook]

same tbh

[limber perch]

not same tbsh

[ancient flame]

to be same honest

[latent forge]

beastmode

[astral marsh]

@latent forge

[latent forge]

based tab hoarder

[brave hollow]

Damn

[terse flax]

gaming set

[analog salmon]

SHEEESH

[astral marsh]

im not even done boi

the keychains are on top of these mugs

[wooden flax]

[latent forge]

worst girls

both overrated af

[light needle]

arch destroyed

[astral marsh]

give your top 2 then

[latent forge]

SSSS Gridman Akane Shinjo

[blazing pawn]

worst girls
isnt that just everyone in re:zero

[latent forge]

P much

echidna js pretty good though

I would say power from csm but no anime yet

[wooden flax]

worst girls
isnt that all anime girls

also i like ur status

[astral marsh]

i would argue that the criteria for the mug index are distinct from those used to determine best girl

[blazing pawn]

I would argue that u should seek help

[cold needle]

x2

[astral marsh]

i see that we are jealous of my mug drip

[wooden flax]

Yeah, I envy you

[astral marsh]

now i have 3 mugs total

[cold needle]

i do not drink fluids from mugs

so i am ok

[wooden flax]

[astral marsh]

??

[cold needle]

i simply levitate the fluid into me

wingardium leviosa

✨

[wooden flax]

🪄

[astral marsh]

leviosa

[cold needle]

not leviosaaaah

[wooden flax]

winGARdium

leviosa

[vivid halo]

I simply drink all my warm liquids from plastic/wax lined paper cups so I can get all that xenoestrogen intake

[cold needle]

this is correct

[wooden flax]

[analog salmon]

do you happen to go to a university in virginia 👀

[astral marsh]

nope

[latent forge]

mass

[terse flax]

I do

[astral marsh]

what part of my laptop screen makes you think that however

[latent forge]

he self doxxed already

[analog salmon]

oh, nothing

but I sent a pic of those stickers to my friend and they were hoping lol

[astral marsh]

ah well no lol

im gonna be busy enough in the next 4 years leading a massive reform of our anime club

my final goal is to beat the princeton anime club

[analog salmon]

o7

[astral marsh]

they know what they're doing and they're doing it much better than the rest

[analog salmon]

sheesh

[astral marsh]

@analog salmon actually on that topic, i was investigating uni anime clubs the other day and i found something disturbing

it seems that in 2016

many anime clubs died at the same time

[analog salmon]

interesting

[astral marsh]

tufts and cornell too

what happened to the anime world in 2016

[analog salmon]

:thinkings:

[keen lantern]

does anyone know what branch of maths is Measure and Integration Theory with Probability

if i have questions, what channel do i post them into

[sharp mulch]

#advanced-probability

[keen lantern]

thats for the probability component

what about the measure theory part

[astral marsh]

someone does, probably

[sharp mulch]

Measure theory for purposes of probability can go in #advanced-probability

[keen lantern]

it doesnt really fit any of the advanced stuff

[sharp mulch]

If it's a plain measure theory question then #advanced-analysis

[keen lantern]

sweet

[sly thistle]

@astral marsh use ublock origin

Idk what ablocker that you’re using is but I recommend ublock origin

[latent forge]

no one is paying you

stop shilling

[sly thistle]

True

[brave hollow]

man I have told him to use ublock 2 times now

some people just love seeing ads 🙂

[latent forge]

using chrome was biggest mistake anyways

since incognito does nothing rly

[brave hollow]

tor is the only great browser of our time 🥸

[latent forge]

browsers are bloat

all browsers are bloat

request webpage and read html

browsers are for consumers

bloat

[astral marsh]

i do use it

all i care about is not getting ads on twitch

hence why i use it

[mortal oasis]

wait what how are you stopping ads on twitch

[astral marsh]

@brave hollow
\

[brave hollow]

[limber perch]

proxies

buy a bunch of proxies

or vpn to some random country which twitch doesn’t give ads to

[astral marsh]

no

i pung nyan because i was too lazy to say it myself but

[astral marsh]

'Video Ad-Block, for Twitch'

as well as ublock adblocker

[mortal oasis]

ublock didnt work for me

nor does origin one

[astral marsh]

idk which one it is but i have both of them installed and i get no ads on twitch

[mortal oasis]

weird ok

[astral marsh]

then get the one i said first

[mortal oasis]

sorry yea thats why I pinged yea cause I have ad block installed and it wasnt working

ill check it out again

thanks

[astral marsh]

uninstall your other adblockers

[mortal oasis]

ill give that a shot

[crystal stone]

Not even a duckroll

0/10

Good day sir, you lose!

Nice!

[astral marsh]

nice pog

[odd narwhal]

Noice

[bronze pelican]

Ultrasocks

[crystal stone]

I got assigned 8 weekly sections of remedial algebra

You know how fun that sounds?

[astral marsh]

well, just study hard and im sure you'll pass

[crystal stone]

ty

I'm so excited

But should I be?

[mortal oasis]

opportunity to have a good impact on peoples lives so yes

id be excited

[sharp mulch]

I've just moved in to my apartment and there is already a mold problem...

[maiden lily]

Take pictures and tell the landlord

Theres been many cases where they will try to pin it on you

[sharp mulch]

Yes I have

[sly thistle]

wow, thats really cool

[timid spindle]

I might not regret reading this

[neat lintel]

free group

[undone palm]

is 100cm^-1 the same as 100cm ?

like does 100cm^-1 = 1m^-1

[neat lintel]

No

[undone palm]

what's the difference 👀

and why is this wrong

[sleek wing]

it would be 0.01cm^-1 = 1m^-1 I think

[undone palm]

why 😳

[sleek wing]

if you have something... once per metre.. then you'd have something.... once per 100 centimetres... or 1/100 = 0.01 per centimetre

[undone palm]

oh ok I kinda see, thanks !

[leaden torrent]

fyi this is analogous to how 1 m² ≠ 100 cm²

indeed, a 1m-by-1m square is actually 100cm-by-100cm, which would be 10000cm²

basically, theres no reason to expect the exact same unit conversions to hold since powers-of-units are fundamentally representative of different things

BUT you can derive the new units using the old ones

100 cm = 1 m, so dividing both sides by "cm", 100 = 1 m / cm, and dividing both sides by "m", 100 / m = 1 / cm

in other words, 100 m⁻¹ = 1 cm⁻¹

and so 100 cm⁻¹ = 10000 m⁻¹

in the future, ask questions like these in the appropriate channel - read #❓how-to-get-help

@undone palm

[undone palm]

thanks a lot ! since this is not an actual maths questions and it's quite simple I sent it here

[leaden torrent]

you might notice that the conversion is "reversed"; whereas 100 cm = 1 m, 100 m⁻¹ = 1 cm⁻¹

this should make sense, as reciprocal units are the "opposite" multiplicatively

[undone palm]

yeah now I understand :)

[narrow rock]

https://youtu.be/1g8oG2BRQyU?t=585

9:45

[broken scaffold]

agreed

[timid spindle]

umm can someone direct me towards applied group theory problems

preferably in mechanical engineering

[sharp mulch]

Group theory is useful when describing rotations

So if you have stuff like robotics

Or aerospace

Then you'll want to have some groups there

Do you want like

Specific problem statements

[timid spindle]

yeah, so I can practice stuff alongside the math book

some basic examples would suffice. I want to be able to use group theory in field like I use calculus and stuff.

[deep mango]

Ange in shambles

I hope everything else is okay

[sharp mulch]

What

[deep mango]

Regarding the mold

[sharp mulch]

Oh yeah

Did I send a picture

It's really bad

[deep mango]

I hope the 4 korean restaurants are not too bad

[sharp mulch]

I bought two dehumidifiers

I visit campus tomo

[deep mango]

That's a good idea

[sharp mulch]

My cousin only has bad furniture

[deep mango]

At least it's not dry there it sounds

[sharp mulch]

The plague of straight men

[deep mango]

Surely there is an ikea nearby

[sharp mulch]

Also

There are 3 tvs

[deep mango]

Oh, that's

[sharp mulch]

What am I going to do with 3 of them

[latent forge]

i agree with them furniture is bloat

[deep mango]

Not important

Hmm

[sharp mulch]

I don't get wifi until tomo

[deep mango]

You can buy good will with some well-chosen associates

[sharp mulch]

So I'm on hot spot for now

[deep mango]

And give them TVs

[sharp mulch]

Lol

[deep mango]

Alternatively, have the public transit schedules update live on one

Use one as a monitor

[sharp mulch]

I have better things to use as monitors...

Also

[latent forge]

yes

wallpapers

[sharp mulch]

When I say my cousin has bad furniture

It means that the items he has are not good

The bed is not comfortable

The sofa is old

[latent forge]

tell him to remove bloat

[sharp mulch]

The tables are hard to use

[deep mango]

Why are you taking old furniture from your cousin

Surely it's temporary

[sharp mulch]

Yes temporary until replaced

I don't think I'm going to have a dining table

I'll just eat on the ground

[deep mango]

[sharp mulch]

Like with a low dining table

[deep mango]

Whatever happened to having a kitchen island

[latent forge]

get used to it as a career mathematician

[sharp mulch]

Not like

On the ground

Why would I want a kitchen island

[broken scaffold]

my kitchen island is a chair

[deep mango]

Table + extra counter space

Clearly

[sharp mulch]

Oh also

One of the kitchen drawers cannot be opened fully because the oven handle thing blocks it

[deep mango]

That's sensible

[latent forge]

open oven then

[sharp mulch]

I'm doing my online teaching training currently

[deep mango]

Oh, that sounds terrible

You'll make a good teacher I think

[sharp mulch]

I certainly hope so

My next few days will be a steady stream of packages arriving

Also I have no clue if I can drink the tap water here

[deep mango]

That is exciting

Uhh

[sharp mulch]

Apparently

There is a dioxane plume

[latent forge]

where at?

[sharp mulch]

Moving through Ann Arbor's groundwater

[latent forge]

oh rip

[deep mango]

I would not drink the tap water in michigan

[latent forge]

dont risk it

[sharp mulch]

And it's slowly headed towards the reservoir where the city gets water

[deep mango]

Maybe for like

[sharp mulch]

Yeah

Esp after Flint

[deep mango]

2 days

[broken scaffold]

i drink the tap water in michigan

[sharp mulch]

I've ordered a kettle

[latent forge]

no why lol

[sharp mulch]

Maybe I should order a separate water filter

[deep mango]

It's fine for a few days until you get a filter

Certainly

[broken scaffold]

why is it bad

[deep mango]

Imagine not having a filter pitcher

[latent forge]

those are memes

[deep mango]

Bruncho chraa lab rat arc

[broken scaffold]

wait really??

that's so cool

[deep mango]

To be fair

I will drink tap water anywhere without looking it up

[latent forge]

filter pitchers are large wastes of money when u can make your own for free and 1 hohr of time

[deep mango]

They had weird push button fountains in barcelona

One time I saw someone use one to fill up a plastic water bottle

[latent forge]

hola como estas

[deep mango]

So then I started doing it too

[sharp mulch]

Ordered

[deep mango]

And I have no idea whether or not they were just stupid

[sharp mulch]

I wonder how much I've spent since yesterday

[latent forge]

te gusta beber en barcenlona, ryc?

[sharp mulch]

I flew first on the way here

[broken scaffold]

Do you live with some kind of water privilege
water is water bro

[sharp mulch]

On both flight segments

The United terminal at Denver is much nicer than the Southwest terminal

[latent forge]

kills u in some places if u dont have antibodies

[deep mango]

Si, pero tambien necesito beber mucho porque esta mucho calor y quiero pasar toda la dia.

I'm not putting in accents fuck that

Also I forget if "day" is one of those exception words

Where it's actually masculine

[latent forge]

donde quieras?

[deep mango]

What

Where do I want?

[latent forge]

yes

[deep mango]

[latent forge]

donde querer

[deep mango]

Ohhh

Donde quiero pasar?

[latent forge]

mhm

[deep mango]

A la playa, a las catedrales, al Park Guell, al castillo Montjuic, etc.

[latent forge]

oy vey eras based

[timid spindle]

damn epic game engine has quaternions.

IDK how to use that but... it's cool to know

[deep mango]

Caminé a todas partes, y usé el metro algunas veces.

[timid spindle]

mucho gracias 😐

[deep mango]

I don't remember how to do past tense properly

Ryc needs to relearn spanish totally at some point

[sharp mulch]

[deep mango]

I constantly need to check a translator to make sure I'm not mixing up vocab or verb endings

[sharp mulch]

Lolllll

[deep mango]

So bad

It's so confusing how es is a pronoun in German but "is" in spanish

Es ist, el es.

[narrow rock]

biblioteca

[neat lintel]

Spanish tenses are kinda wack

Pasado pluscuamperfecto got me feeling some kinda way

[analog salmon]

romanian tenses are honestly pretty chill

except they use the subjunctive wayyyy too much

[sharp mulch]

What teaching modules should I do

Backward Design: Lesson Planning with the End in Mind

Engaging Students in Face-to-Face and Online Classes

Teaching for Accessibility

Technology for the First Days of Teaching

Facilitating Group Work to Maximize Learning

Grading Assignments and Exams

[rancid meadow]

are these math server names

[sharp mulch]

No

These are graduate student instructor teaching orientation module names

[rancid meadow]

oh do you need to do all of these to learn how to teach

[sharp mulch]

I don't need to do any of them

[rancid meadow]

aw its like when u work at boston pizza and they make you watch 10 hours of videos to learn how to make the pizza

[sharp mulch]

But like

Grading Assignments and Exams seems useful

Whereas Technology for the First Days of Teaching does not seem useful

[rancid meadow]

teaching for accessibility should be the first one you watch

shout out to the math prof that once responded to "I can't read the colour you are writing in b/c I have eye issues" with "uhhh, okay, deal with it?"

🙂

[sharp mulch]

Oh yikes

This won't be a problem because I won't use any colors

[rancid meadow]

but having spent time in classes that care about accessibility vs. math classes there are lots of things that are different & important

ange lectures are boring

[sharp mulch]

I don't think I'm supposed to lecture for the full class period

I'll see

But if I'm in a blackboard room there won't be any colors because colored chalk is too much

And if I'm in a whiteboard room

I will use black, blue, and green

[odd narwhal]

🤡

The prof not you

[blazing pawn]

i agree that

teaching for accessibility sounds good

[broken scaffold]

be hip with the accessibility

[astral marsh]

can you give an example, for the non nerds here

[velvet dagger]

I also don't use colors lmfao

Mostly because colored chalk is scratchy

Or at least the colored chalk I almost always see

[sharp mulch]

Using chalk at all seems suboptimal

Compared to using whiteboards

[broken scaffold]

lecture challenge
do lecture outside entirely on the sidewalk

[astral marsh]

🔫

[sharp mulch]

[astral marsh]

whiteboard users will get pinged

[neat lintel]

Actually it's not too bad, just has a very intimidating name

For verb comer, it's había comido

Equivalent to had eaten

Subjunctive is worse

[narrow rock]

[sharp mulch]

[clever knot]

i heard there is fancy chalk

[narrow rock]

whiteboard users will get pinged

there is fancy chalk

it is very good

[clever knot]

isn't chalk messy

wait

1 advantange

of the chalk users

[neat lintel]

hagaromo gang

[clever knot]

https://www.youtube.com/watch?v=B0LgaWUSzMI

take that marker users

[thorn brook]

so satisfying

[south summit]

toki

Did you finish excision

[thorn brook]

no lmao

[south summit]

[thorn brook]

I finished the long ass proof and now I will be reading the proof of the excision theorem and a few other stuff and then I will be finished with that section

I will do that tomorrow tho

[south summit]

Idk how to feel about this

[thorn brook]

what?

[south summit]

Toki overtook me in AT

[thorn brook]

yeah in pages lmao

that doesn't mean anything tho

[south summit]

[thorn brook]

but here's the thing

you left of here right?

[south summit]

Somewhere in the middle of excision proof

I'm pretty sure I didn't go past barycentric subdivision

[thorn brook]

[south summit]

When I resume homology finally

And have some doubts

I'll ping you

😌

[thorn brook]

what if we both started reading Hatcher from this point 👉 👈

[south summit]

Lessgo

[thorn brook]

But idk if you even want to lmao

[south summit]

[thorn brook]

May seems more suited for you tbh

[south summit]

I literally just said lessgo toki

Smh

[thorn brook]

wait

[south summit]

[thorn brook]

[south summit]

I can read multiple books in parallel it is the power bestowed upon me by my laptop having the ability to go to sleep instead of having to shut down so that I can just stay where I am on PDFs without having to find the page again

[thorn brook]

yooo that's awesome lmao

[south summit]

Though tbh

I don't wanna read the proof of excision yo that shit was boring

[modest rune]

As a side note

Not really a side note

[south summit]

Fuck barycentric subdivision

[modest rune]

the hardest part of learning AT

Without lecture

Is realizing that you really don’t have to read

A lot of proofs

Like most of those gross proofs involving nary centric

Barycentric*

Never come up again

[south summit]

Nice 😌

Also I like May's way of doing things a lot so I feel like I can kinda speedrun Hatcher and keep proper reading for later from May

Toki you better hold on

We going zoom

[modest rune]

Concise is a much more modern way of thinking about AT

[south summit]

That is good right?

[burnt dune]

how can u turn algebra into geometry

[sharp mulch]

Schemes

Sheaves

Stacks

[analog salmon]

varieties

[modest rune]

Yes

[burnt dune]

like u actually get pictures?

lmao

[sharp mulch]

It's "geometry"

[modest rune]

That’s the best thing about concise

[sharp mulch]

Not Euclidean geometry

[south summit]

[sharp mulch]

There are "pictures"

[thorn brook]

but moldi how do we actually read together lmao

[sharp mulch]

Like the picture of Spec Z

[thorn brook]

never thought about that

[modest rune]

Weekly meetings usually

[burnt dune]

what the fuck is geometry

[modest rune]

Algebra^op

[burnt dune]

what

[south summit]

Toki give address

[thorn brook]

✈️ me flying to moldi on weekends

[south summit]

[modest rune]

Over zoom

U fools

[south summit]

Thinking alike lessgo

[modest rune]

Or like discord

[south summit]

Toki when first meeting 👉 👈

[thorn brook]

man I don't know lmao

[south summit]

What time zone are you in

[thorn brook]

I'm in Europe so it's 21:19 right now

[south summit]

dm if no dox

Nice close time zones 😌

[modest rune]

Btw

Add me if u guys make a server I’m happy to be very hands off but answer some Qs maybe

Or a groupchat or whatever

[south summit]

Will do ty

Toki mek server

Wait yeah discord has group chats now

[thorn brook]

oh yeah

[south summit]

Wait that has way too little notification control though

[thorn brook]

hmm what should we do

[south summit]

Meet tomorrow and decide 😌

[modest rune]

Just make a server lol

I have a server w only me in it

I use it to transfer pdfs

From my computers

And phone and tablet

[thorn brook]

ah I see

[south summit]

Toki mek server

[thorn brook]

yo I don't even know how

I'm too noob

let me check

[south summit]

Scuffed

[thorn brook]

yoo that was easy lmao

done

[south summit]

Maybe add me too

[thorn brook]

which account tho?

coldi or moldi

[south summit]

[thorn brook]

or both

[south summit]

Both

Or this

I can invite second one 😌

[thorn brook]

yeah okay roger that

[analog salmon]

not using a github repo to transfer pdfs smh

[neat lintel]

I use my email unless i’m doing 20 revisions of a paper

[astral marsh]

@fervent flame

[deep mango]

Boston pizza is fucking rank

[astral marsh]

typical west coast syndrome

cope harder cali boi

[sharp mulch]

The only reason people can distinguish cows and humans is because of onions

[narrow rock]

Ange you seem to have an interest in anime.

[sharp mulch]

You're not wrong

I was going to take a class about anime at Berkeley but then it wasn't offered when I wanted to take it

This teaching orientation has "take a break" built in

[deep mango]

Boston pizza is a canadian chain

There is good pizza in boston

Boston pizza is disgusting

[sharp mulch]

Lol

[inner finch]

anime class at berkeley

[deep mango]

Ange was too busy taking the class in "Adulting" to take the anime class

Or the magic tricks class

[sharp mulch]

No it was only offered one semester that I was at Berkeley

When I was a 1st year

And it was an upper div class

[deep mango]

Oh not a decal?

Wow

[sharp mulch]

Japan 188 or something

[deep mango]

I guess that makes sense

[light needle]

anime moment

[limber perch]

"boston pizza is a canadian chain" ah yes

[deep mango]

Yeah it's stupid

Wait also

I think I was thinking of pizza pizza

Pizza pizza is the shit one

[limber perch]

oh wait

i've had this once

it was good though

[astral marsh]

ah okay

well keep coping cali boi

[deep mango]

Both pizza pizza and boston pizza are shit tier

Get your crap together canada

I'm literally an NY pizza snob you boston boi, the pizza in California all either 1. sucked or 2. wasn't pizza.

[modest rune]

this is like

regrettably pretty true

ive yet to have great pizza in CA

[deep mango]

The not pizza pizza is like

Really good sometimes

[crystal stone]

There are some pizza places I liked in CA

[deep mango]

Cheeseboard in berkeley is amazing

[crystal stone]

@modest rune You like Gina's?

[modest rune]

i mean even bad pizza is good

[plush shuttle]

wait

[modest rune]

Gina's falls under like

[deep mango]

It just doesnt have sauce

[modest rune]

not-great pizza that is also very delicious

[deep mango]

Pizza has sauce

[plush shuttle]

u live in Berkeley too?

[crystal stone]

I thought it was good

[deep mango]

I just graduated and left

[crystal stone]

What was that place in westwood

[plush shuttle]

tbh i really like papa johns...

[modest rune]

broke

[plush shuttle]

cool

[crystal stone]

400 or 800 degrees

[modest rune]

Oh ive not been

[crystal stone]

They did woodfired custom pizzas

[deep mango]

Ok if you mean the papa johns on shattuck

[modest rune]

I honestly rarely eat pizza nowadays

you know what has surprisingly good pizza

[deep mango]

I went there once

[modest rune]

is Dallas

[plush shuttle]

i think ill order pizza ;;-;

[deep mango]

And it was basically inedible

[crystal stone]

Dallas has good food in general

[modest rune]

pizza is just too many calories

[plush shuttle]

true but

[modest rune]

I think CA has great food in a lot of ways

[plush shuttle]

cheat day

[modest rune]

bc like

[crystal stone]

The variety and authenticity of asian food in socal

[modest rune]

obviously one slice of pizza

[crystal stone]

Is off the charts

[deep mango]

CA does have a lot of very good food

[modest rune]

isn't that many calories

[limber perch]

what a name

[modest rune]

but like

I either eat no pizza

or an entire large pizza

i have no self control

[deep mango]

Shattuck is a street

[crystal stone]

When I was in seattle we straight up couldn't find a good chinese restaurant

[limber perch]

is it

"shat - tuck"

or

"shuttuck"

[modest rune]

I am kinda meh on most chinese food

[sharp mulch]

California has the best food

[modest rune]

ive never loved it

[crystal stone]

Szechuan Impression on Red Hill

In tustin

[plush shuttle]

u havent had good chinese food

[crystal stone]

You should try that place

[modest rune]

Thats not too far from me

maybe ill try it

maybe ill do it tn

[sharp mulch]

I am very meh on most white food

[crystal stone]

Another good one is O'Shine Taiwanese Kitchen in Lake Forest

[modest rune]

jfc Call Me if You Get Lost goes so hard how did I not like it on my first listen

[plush shuttle]

||tbh i really like taco bell lately||

[modest rune]

I think i was so ready for IGOR 2

[crystal stone]

I'm coming back to socal for labor day weekend

we have a list of places we are eating at

[modest rune]

What else is on the list

[crystal stone]

Pho Holic is top priority

[modest rune]

Have you been to Gu Ramen? thats a fav of mine

active culture is cool

[crystal stone]

We've been to a lot of the ramen places, my wife isn't a fan of ramen in general

[modest rune]

Taco Loco is a must have for me

[deep mango]

shah-tuck

[crystal stone]

Because they don't give enough meat compared to viet soups

[deep mango]

well

[modest rune]

Yeah Ramen isn't about meat for me i get that

[deep mango]

It's an AAAA not an ahhh

But

You get it

[modest rune]

i just fw the broth and the noods

[sharp mulch]

Like in shatter

Shatter

But tuck and not ter

[deep mango]

Buttuck.

[crystal stone]

Mayflower Express in Anacrime is good

For cheap dumplings

I dunno if they're open still

[limber perch]

shitter

[modest rune]

There's this like

Gyro place

by main beach in laguna

that is way better than it has any right to be

i always forget what its called

[crystal stone]

In Fountain Valley, there's this cafe called Simply Home

It's right next to vox kitchen

[modest rune]

Oh actually

[crystal stone]

Good hanan chicken soup

[modest rune]

do you know anywhere in the newport area

that would be like

a coffee shop where young people do work and stuff

i have been missing that college vibe a lot

[crystal stone]

I've been to a couple of breweries

You can sneak onto the UC Irvine campus and chill in the bar

[modest rune]

Yeah ive considered that

I'm like

a UC guy

its not that sneaky

[crystal stone]

They have 37 beers on tap

[modest rune]

oh im mostly interested in caffeine

i dont drink much bc my body just hates it

[crystal stone]

I don't do coffee shops, but there was this place off of Newport Ave in Tustin

Leaves from the vine?

The lost vine

[crystal stone]

Try out the lost vine in tustin

Get there early cuz spots fill up quickly

It's right off the 55/5

[modest rune]

oh

that looks fun

okay okay ill tryu that 2maro

[crystal stone]

Yeah, and it transitions to a wine bar at night?

[modest rune]

man

[crystal stone]

I've been there all day before working on topology

[modest rune]

hyde park is so lame

we didnt have any coffee and wine bars

[crystal stone]

Are you bringing your car to UCSD?

[modest rune]

yeah

my grad apartment has a charger 🙂

[crystal stone]

Do you get an all encompassing UC parking pass?

[modest rune]

uh i think i gotta pay for it

but i will

[crystal stone]

It's worth it if you're going to seminars/conferences a lot

e.g. if you wanna go to a talk at LA/SB/Irvine

Or riverside even

It kinda sucks that SD is so far from all the others

[modest rune]

Yeah it would be hard during the week

I'm happy to make a trip out of going up to LA tho

[crystal stone]

I think I did 2 trips to SB

One trip to caltech, and a bunch at Irvine since it was the closest one

It's more manageable if you don't have problem sets

[wooden flax]

damn

[thorn brook]

slim still muted

[limber perch]

he must've said some really bad stuff

[thorn brook]

de*z n*ts

[gloomy marten]

Who's slim?

oh wait is this a slim shady setup

[shell roost]

slim asked for mute so he could focus on gre studying

[crystal stone]

imagine studying something that's been cancelled

wew

[thorn brook]

ooohhh okay I see now lmao

[thorn brook]

slim deez nuts

gotem

[gloomy marten]

slim deez nuts into yo mouth

Ha

goddeem

[thorn brook]

NOOO

YOU CANT DN ME LIKE THIS

[gloomy marten]

tell me a jungler

a random jungler

[thorn brook]

[sharp mulch]

FTW.Quiet

[thorn brook]

[gloomy marten]

just say a random name quick

[thorn brook]

shaco

[neat lintel]

[gloomy marten]

ty

[neat lintel]

Warwick fire

[gloomy marten]

Warwick was the first champion I ever fed played with

[neat lintel]

Same

Karthus if you want both teams to hate you

[gloomy marten]

someone dodged and I'm still jungle

do I continue shaco or change champs, same list as before

[neat lintel]

Shaco

Imo

[gloomy marten]

who do I ban

[clever knot]

your top laners champ

[gloomy marten]

too late, banned no one

[clever knot]

whoever your team is hovering

omg

.-.

[neat lintel]

No one is chad

[gloomy marten]

should we move to #chill

[neat lintel]

It tells em you ain't afraid

Yes

[thorn brook]

are you playing among 8s?

am*gus

[gloomy marten]

amogus

[neat lintel]

Mnogus

[gloomy marten]

[brave hollow]

Bruh same , we have so much in common 😁

[analog salmon]

wtf, I feel lied to

I signed up for a class on manifiolds

and this is the table of contents for the textbook we're using

where are my charts and atlases

where's my hausdorff second countable spaces

[clever knot]

civil protest

[clever knot]

does it only stop at 200 pages/

do the books get smaller and smaller the higher you go up?

[analog salmon]

there's a little more, but not much

this is so cringe

[clever knot]

do you already know this stuff

or what

i assume you still have the chance to change classes?

[analog salmon]

yeah I could if I wanted to

it's just not what I expected the course to be

it has literally nothing to do with the class name

well

that might be a slight exaggeration

[clever knot]

can't you see the books you need before you get the class?

[analog salmon]

this is the first semester they're offering the course, so the book wasn't available until recently

the semester doesn't start for me for like 2 weeks

[latent forge]

when does class start for you?

[analog salmon]

23rd

[clever knot]

Also maybe it is uncommon but do teachers should instead of just having a generic course description post some syllabus or something for their classes (even if they are older)

[latent forge]

oh damn

do you mind writing down what youve learned

cuz im taking diff top and it seems similar in content

[limber perch]

hey this is a class on manifolds

the manifold just happens to be R^n

[analog salmon]

yeah that's bs

where's my de rham cohomologies

[latent forge]

what are those

[analog salmon]

it's basically a measure of how the fundamental theorem of calculus fails on a general surface

this was my least favorite part of vector calculus, I don't want to do this again

[clever knot]

How does an intake /exhaust manifold fit into all of this? /s

[analog salmon]

not that kind of manifold

a manifold is any general surface that 'looks like' normal euclidean space when you zoom in far enough

so a sphere is a manifold

as is a donut

[clever knot]

what are same examples that wouldn't be a manifold

[latent forge]

lol idk what cohomology is

[latent forge]

but i should learn in school by february

[clever knot]

what is this about

https://www.youtube.com/watch?v=sKqt6e7EcCs

[slim meadow]

This seems pretty standard? I'm not sure what you expected

manifold here really means smooth manifold, and not topological manifold, so maybe that's why you're confused

[analog salmon]

this is what I was expecting as the table of contents

[analog salmon]

a cone wouldn't be a manifold since it has the sharp point

[clever knot]

wait what is the class about knots called?

[limber perch]

haha

[slim meadow]

That's not too different? The 2nd chapter of that is the third chapter of the other one

the 6th chapter there is the 4th chapter of the one before

the 8th chapter there is the third chapter of the thing before

[analog salmon]

book has too many numbers for my liking

[slim meadow]

I do agree that the first one veers more into differential geometry and riemannian manifolds, but it still seems pretty standard

[latent forge]

no clue what a k form is

or what an exact@maniofold is

[analog salmon]

think of it as a vector field

[clever knot]

what level is that course?

[analog salmon]

4xxx undergrad course

[latent forge]

vector field plus what?

[clever knot]

is this a pretty standard major requirements

[latent forge]

what is really?

[analog salmon]

a vector field is a k form

[latent forge]

what is a k form though?

is a k form a vector field?

or is it more abstract

[clever knot]

and then it says another 2 other 4000 level courses

[analog salmon]

a 1-form is a vector field exactly

a general k form is more abstract, but gives a similar idea

[latent forge]

what is a 2 form then?

[vivid halo]

a 1-form is a covector field but it's essentially a vector field sure

[analog salmon]

at my uni only 3xxx courses are required, then you have to take a 2-course sequence in 4xxx level classes, so 2 class in real analysis or algebra or topology or whatever you like

[vivid halo]

to define k-forms you need to know what the exterior algebra is

[clever knot]

could you not just teach yourself about smooth manifolds?

although i guess no credit

[latent forge]

ok

[analog salmon]

yeah I could but I also want to enjoy this class since I need the credit

[latent forge]

i think i might know lol

i dont rip

but a vector field takes each point of a manifold to a vector right

[analog salmon]

exterior derivative is a generalization of divergence, curl, and gradient

[vivid halo]

to a tangent vector yes

[latent forge]

so its a function from X-> R^n

[vivid halo]

not really

[latent forge]

o

[vivid halo]

a vector field on a smooth manifold X is a section of its tangent bundle TX, the tangent bundle is the bundle of tangent spaces at each point

[latent forge]

breathing

[limber perch]

plz dumb it down even more

what's a bundle

(if it has a one sentence def that is)

[latent forge]

tangent spaces can be represented by normal vectors right?

[analog salmon]

it's the disjoint union of all tangent vectors on the manifold

[vivid halo]

so here TX->X is a map of smooth manifolds where the preimage of a point x in X is the vector space T_xX of tangent vectors at X

that this is a smooth vector bundle means the vector spaces over each point "vary smoothly" in a precise sense

so a vector field is a section X->TX to TX->X, that is a map that sends each x in X to a tangent vector v_x in T_xX, the tangent space at x in X

that this is a smooth section means that these tangent vectors "vary smoothly" in a precise sense

[latent forge]

when you say section you just mean a inverse map or something?

[vivid halo]

yea it needs to have the property that when you compose X->TX with the projection TX->X you get the identity

[latent forge]

i have been reading a bunch of wiki nonsense, does this relate to presheaves or something

[vivid halo]

ehhh there is a way to define all this stuff in terms of sheaves but there's no need to do this

every vector bundle has an associated sheaf of sections sure

[neat lintel]

Sections feel kind of icky to me

[vivid halo]

the point being you can talk about local sections of a vector bundle defined on some open subset U of X, and you want these to be compatible in that if you have sections defined on overlapping U and V that are equal on U intersect V then you can glue to get a section defined on U union V

but again this perspective isn't strictly necessary

[latent forge]

oh ok but that adds to my knowledge of their use

[vivid halo]

mhm this is the point of sheaves, it's a convenient way to encode the idea of like, if you can define functions that agree on overlaps you can glue

[analog salmon]

I should've been skeptical of this manifold class after I saw it didn't have topology as a prerequisite 😔

[latent forge]

🛑

[slim meadow]

I still don't know what you're complaining about, the two table of contents you posted are not that different

[vivid halo]

ehhh manifolds can make a good introduction to topology

[analog salmon]

idk, just flipping through the assigned book they talk a lot about isometries and curvature and geodesics and I just don't care about all that stuff

[vivid halo]

I suppose if you have seen a good amount of topology before but haven't worked with manifolds then this course might involve some amount of repetition

ahh okay so it's more geometry of manifolds rather than topology of manifolds

[latent forge]

oh

[slim meadow]

Yeah, that's why I said it veers more into riemannian manifold things

[latent forge]

what are topics covered with topology of manifolds?

[analog salmon]

like, learning about tangent/normal/bitangent and curvature and all that was my least favorite part of vector calculus. This just doesn't interest me

[vivid halo]

topology of manifolds courses usually cover the basic constructions for manifolds and then deal a lot with transversality and intersection theory

maybe some differential forms stuff going into basic de Rham theory

[analog salmon]

I really liked reading Loring Tu's An Introduction to Manifolds last summer

[vivid halo]

yea that's a lovely book

[latent forge]

i only know definition of manifold and thats it, not very much. is it ever a thing to verify if something is a manifold or not?

[analog salmon]

there's a few topological properties it has to satisfy

(Hausdorff and second countable)

[latent forge]

second countable basis?

[analog salmon]

and then you need these local homeomorphisms from neighborhoods on the manifolds to subsets of R^n

[velvet dagger]

Did someone say bundle

[narrow rock]

bundle

[limber perch]

yes, three people actually

four*

[latent forge]

yea this the part i rly know

[analog salmon]

this is the full definition

[limber perch]

what's this class called

i get it's rigorous vector calculus

but this usually isn't a course name

[analog salmon]

the class is literally called "manifolds"

[latent forge]

just two silly questions, what is an example of a space that is locally euclidean and hausdorff . and an example of locally euclidean and second countable