#serious-discussion

1 messages Ā· Page 220 of 1

tawdry arrow
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or you'll fail 😹

undone pike
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my best exam score ever was when i went to the bathroom twice before it (and it was a 3 hour exam)

flint basin
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oh that reminds me of how i was one of the first people to take the ACT online

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fun

weary birch
undone pike
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another thing is don't get stuck on questions. do easy ones first, skip/guess hard ones to start

flint basin
# jovial ember Wat

my HS was part of the pilor program to take the ACT virtually rather than on paper

jovial ember
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Weirdge

rain bronze
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hi

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anyone here in college or been to college

surreal sapphire
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i'd be surprised if that is not the case...

neat lintel
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200k collegeless mfs trying to feel smart joining a math discord server

old oak
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I've even fooled them into believing I have a PhD, the rubes

brittle socket
terse marlin
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Hey is there anyone here that knows statistics

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I just wanna ask about probability distribution

willow crystal
terse marlin
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Idk the base level high school one?

willow crystal
terse marlin
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Oh yeah that

willow crystal
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oh okay what's your question?

terse marlin
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I'm looking at my module here, there's a word problem that goes something like a guy draws 2 balls out of a bag with 5 orange balls and 6 violet balls

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Then there's tables for the probability distribution

willow crystal
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if it's a problem you're stuck on

terse marlin
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But it looks like it just ignores the fact that you're more likely to draw a violet ball?

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Is that not a thing you account for?

willow crystal
terse marlin
#

It only lists and accounts for unique outcomes

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No

willow crystal
terse marlin
willow crystal
# terse marlin Because there's more violet balls?

think of it like this. For the first event (first ball you pick), probability of getting violet balls is 6/11 and probability of getting orange balls is 5/11. If you picked violet ball first, what would the probability be for picking it a second time?

terse marlin
#

1/2?

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Hmm

willow crystal
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It changes depending on what occurs on the first event

terse marlin
#

Wait I think I'm getting it

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So because I'm drawing more than 1 ball, the excess balls decrease and the chances are evened out

willow crystal
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But you're doing it twice

old oak
knotty kettle
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Hey

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Anyone wanna chat?

terse marlin
willow crystal
#

yeah it's similar principle

knotty kettle
#

Chatting failed

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Moving to another channel...

willow crystal
knotty kettle
willow crystal
#

for me it's near afternoon, but for others it's probably 2am or smth

knotty kettle
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For me it's also afternoon

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13:48

willow crystal
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it's 11:49 for me

neon garnet
long matrix
tawdry arrow
#

next

hollow tulip
knotty kettle
#

How do I remove a bot from my Discord server?

carmine silo
#

Ok

vocal vessel
vast wraith
timid raptor
#

It's ok, US has a stable genius at the helm

mental stratus
#

šŸ§‘ā€šŸ¦² šŸ‘© šŸ‘Ø šŸ“· šŸ“ŗ

tawdry arrow
vast wraith
glass peak
#

None of what you have just said is true, it’s just the nonsense parroted by far right grifters

tawdry arrow
inner canopy
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what do you call "gender ideology extermism"

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like what does that mean to you

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have you seen any evidence of these types of behaviours actually happening through video or similar means
Or did you just hear it from some news anchor?

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because it just sounds like you're parroting the stuff that like

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fox news anchors say

sharp mulch
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What is gender ideology extremism

unborn meteor
inner canopy
unborn meteor
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what is a strawman argument

inner canopy
# unborn meteor what is a strawman argument

the idea is that you sidetrack an argument with a wholly unrelated point to the discussion, argue against that secondary less relevant point and then pretend like you won the argument

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ben shapiro and gang do that a lot

unborn meteor
maiden crane
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what

icy heron
# tawdry arrow I'm assuming you are talking about the removal of gender ideology extremism from...

Are immigration and crime related? This review addresses this question in order to build a deeper understanding of the immigration-crime relationship. We synthesize the recent generation (1994 to 2014) of immigration-crime research focused on macrosocial (i.e., geospatial) units using a two-pronged approach that combines the qualitative method o...

vast wraith
icy heron
long matrix
unborn meteor
vast wraith
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girl i dunno

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apparently i make a lot of exaggerated facial expressions without realising

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irl, that is

tawdry arrow
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do you not agree?

solid snow
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it's not a criminal offense

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objectively

tawdry arrow
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so lets just open the borders

solid snow
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Sure!

tawdry arrow
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let el salvador in let venezuela in

solid snow
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Why not

tawdry arrow
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sanest leftist

solid snow
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I mean, ignoring the fact that that's not actually my position, you should probably explain why you think that way instead of just calling me things

tawdry arrow
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because why are you arguing against biology in a situation where it matters

solid snow
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What is the overreach you speak of?

wild lantern
solid snow
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Which situation is this?

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Hard mode: Don't say women's sports

wild lantern
tawdry arrow
solid snow
tawdry arrow
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It is quite literally child abuse to influence a child into taking HRT

wild lantern
solid snow
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Well not usually

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They always do

tawdry arrow
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nonetheless

wild lantern
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Nobody is saying "influence them"

tawdry arrow
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I don';t

wild lantern
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Turn off the tucker carlson bud

solid snow
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It's the same as any other medical procedure where there's risks involved

tawdry arrow
solid snow
#

Yeah?

unborn meteor
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oh no

tawdry arrow
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mind you this IS irreversible

wild lantern
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Literally talk to fucking anybody in the camp of folks you seem to have a problem with so you can even know what you're arguing against rather than making up the dumbest straw man args

tawdry arrow
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don't bullshit and say its not

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IT IS

solid snow
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Puberty blockers are not irreversible

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There's no scientific evidence to support this

unborn meteor
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doot can you just ban this guy for transphobia

solid snow
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They just delay puberty

tawdry arrow
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I'm not transphobic

unborn meteor
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as a trans person i'm saying you are

tawdry arrow
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On an individual level an adult can make any decision they want

wild lantern
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Seems pretty transphobic to me when you're calling letting people choose their own identity and have that be respected "gender extremism"

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Do you like people being respectful of you?

tawdry arrow
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societally, my opinion is that is it is destructive

wild lantern
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Why does it not go both ways

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Societally your opinion is fucking stupid.

tawdry arrow
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mind you i am not transphobic or homophobic

solid snow
tawdry arrow
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disclaimer

solid snow
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Doctors don't just do this willy nilly

tawdry arrow
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disclaimer***

unborn meteor
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i'm a trans teen and i really want hrt like really really bad because it would make me happy

solid snow
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Like there are other hormone treatments and things that you can make a decision on whether you do or not

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Like HGH treatment

tawdry arrow
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its not

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Majority regret it

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suicide rates increase

wild lantern
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Do you know this person?

solid snow
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No they do not

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You're actually spreading misinformation now

unborn meteor
tawdry arrow
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they do if i could send links i would back it up

solid snow
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you can send links

wild lantern
wild lantern
unborn meteor
tawdry arrow
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You are spreading delusion

vast wraith
wild lantern
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Cya

solid snow
wild lantern
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Banned

inner canopy
solid snow
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These type of people are so jarring

inner canopy
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What a piece of shit

solid snow
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I genuinely do not know how they function in life

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What's weird is that this isn't an uncommon behavior or attitude

unborn meteor
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its sad that there are people that actually believe this

inner canopy
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Well I mean

solid snow
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me when im wrong about everything to own the libs

inner canopy
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He's probably like

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13

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Lmao

fresh comet
wild lantern
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Sorry I should have just banned sooner

fresh comet
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what a trainwreck

glass peak
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I’m having increasingly negative thoughts about people like that which is why I chose to make a very diplomatic comment then dip

unborn meteor
inner canopy
#

Like
Having access to the internet is nice
When you know how to use it...

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Also "you're speedrunning delusion" lmao

glass peak
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ā€œSuicide rates increaseā€ (apart from the fact that’s not true) I fucking wonder why, couldn’t be related to miserable bastards like you making peoples lives hell for no reason what so ever

inner canopy
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I also like how it's always "to protect children" but they can't see that they themself are pushing their own beliefs on kids

solid snow
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The only "speedrun" I see with these type of conversations is how fast it takes them to be like "nuh uh the facts are wrong and the science is wrong and uhhhh basically yeah"

wild lantern
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These folks just make me mad

unborn meteor
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iirc suicide rates decrease by a factor of like 540

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after transitioning

solid snow
unborn meteor
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now how long until they make an alt and come back

wild lantern
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The actual hypocrisy of believing we ought to respect the gender identities of kids but not unless they conform to same made up bullshit is stupid.

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"Respect my kids gender but idgaf about yours" level thinking.

glass peak
# wild lantern These folks just make me mad

Incredibly so, and it’s not even just the transphobia thing which obviously pisses me off, but the way he talks about ā€œillegalsā€ and the shit that (mostly Americans) will justify doing to ā€œillegalsā€ now is fucking sickening

inner canopy
#

Also the fact they thought they're center right sotrue
What the fuck is far right in their eyes geez

glass peak
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I genuinely fear for our near future with the rise of fascism and the far right in the west

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My outlook on the future is becoming more and more bleak tbh, every time I see anyone like that

solid snow
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The latest was Trump crashing our national economy so that some S tier insider trading could occur

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What drives me up the wall is all the people who vote against their own material interests

glass peak
solid snow
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and stay deluded about the fact that they've done so

inner canopy
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I like to imagine these people are the minority
The ones fully dedicated to trump
Or they're too young to vote
Most people are kinda stupid and don't really care too much about party lines and will just vote for the guy they think will help them with their taxes and inflation
Like I don't think most people support trump that much after the whole stock market fiasco and the tariffs increasing prices of stuff

solid snow
#

Oh boy...

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You'd think...

glass peak
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Obviously I do care about it, and it pisses me off to see everything saying trumps brought about the best day in the stock market since 2008 piss me off with their lack of critical thinking skills, but it’s just the loss of humanity that’s upsetting me

inner canopy
glass peak
#

How many people are willing to justify utterly reprehensible acts on whoever Fox News or whatever other right wing shit rag they engage with tells them to

inner canopy
unborn meteor
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i used to be very bigoted

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now i'm gay and trans

solid snow
faint light
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what happened :hollow:

solid snow
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So they tend to double down on their ignorance

unborn meteor
faint light
#

ok ima stay out of this convo 😭

inner canopy
#

šŸ’€

solid snow
#

That's what happens when it's owned by capitalists who don't have anybody's best interests in mind

edgy tiger
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Meowrizzlah skibidi ahh

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Hey speedy can you fetch me some researchgate papers

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You see I need those badly

true zinc
edgy tiger
#

Wow that was against the rules

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I'm sorry guys I failed y'all

neat lintel
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Do it urself

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Can you dm me the problems

static hazel
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i can made for free

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Just send it

wild lantern
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Cheating is against the rules

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@neat lintel @static hazel

static hazel
wild lantern
wild lantern
edgy tiger
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My thought was short

wild lantern
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No problem. I was just figuring you didn't know.

neat lintel
neat lintel
wild lantern
wild lantern
neat lintel
wild lantern
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Yep no worries

neat lintel
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So am I allowed to teach him

wild lantern
#

@wary fern gonna respond here because it's not really a tcs centric topic. I joined out of high school at 18. I was able to use the GI bill to go to college. This was effectively the only way I would have been able to go to college in a serious way. It was successful in that sense.

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For actual being in there were some things I liked and some things I didn't like. I mean, the military is what it is. The jobs can be serious. Being enlisted means you're basically at the bottom of the totem-pole. Which means you end up doing a decent amount of garbage jobs that suck.

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A lot of ncos and officers are cunts

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A lot of junior enlisted are morons

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It shouldn't be surprising that it is that way.

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I'm not going to tell you whether it is or isn't. I finished my enlistment. I paid for college that way. I doubt it's the most optimal or direct way. It worked for me. It's really hard to know in retrospect whether big choices like this are right.

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The ethical concerns people mention exist and are worthy of consideration. I think that deserves serious thought.

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I think it also deserves some serious thought as far as whether you are able/willing to deal with a lot of dumb assholes for 4-ish years.

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I wouldn't call it terrible either. If you stay out of trouble you eventually figure things out. It's steady work. The pay is reasonable. The benefits decent too.

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Just don't make whatever decisions you make lightly. If you go that route it's going to be something that will be part of who you are for a very long time.

neat lintel
wild lantern
neat lintel
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Then I’ll take it as a yes

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@static hazel Whatever questions you have drop in my dms and I’ll teach you how to do them

sour temple
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i want blender/a 3d modeler and animator for mobile :(

brittle socket
graceful shard
#

What's up

steep mountain
brittle socket
#

Morning nap + afternoon nap sotrue

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Of course, I did self-studying catking

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Analysis and lin alg slapping me as always šŸ—æ

lost forum
#

Btw I found a new formula

For ax+b=0
Where a=/=0
Use this formula to solve for x

[x=-b/a]

Ex. 3x+7=0
Using x=-b/a
x=-7/3

Ex. 2
4x+10=6x+6
0=2x-4
x=4/2=2

long matrix
#

what sense of the word "new" are you using here?

lost forum
lost forum
long matrix
lost forum
long matrix
lost forum
willow crystal
long matrix
willow crystal
long matrix
lost forum
lost forum
lost forum
willow crystal
long matrix
# lost forum City

I highly doubt none you asked did not know of your stated rearrangement

lost forum
willow crystal
old oak
lost forum
willow crystal
old oak
#

In general it's neat that you discovered this pattern, it's just that it's not something new that hasn't been known before

willow crystal
lost forum
willow crystal
old oak
willow crystal
lost forum
#

Also I found a nice non integer approximation for x!

They are Stirling function: sqrt(2Ļ€n)(n/e)^n

And my function:
floor(n)!(n^(n mod 1))

Note: floor(n)! Will output any integer, regardless of if n e R

Check on desmos to see which one u like

crimson parcel
#

Is real analysis the hardest course in colleges?

old oak
#

There isn't a ranking and it's subjective, but on the whole it is considered fairly hard by many

crimson parcel
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I really hope things got a bit easier when I get to abstract alg

old oak
long matrix
#

i mean its literally the quadratic formula for linears

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linear formula, if you will

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but no one calls it that because one rearrangement brings you there

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While memorising the quadratic formula might be handy, if you find it easier to remember a formula to find the root of linear equations than rearrange, then skull

old oak
# long matrix i mean its literally the quadratic formula for linears

I'm reminded of Al-Khwarizmi's work on quadratic equations; that was before negative numbers were a thing (or at least before they were a mainstream thing), so he considered six different types (https://en.wikipedia.org/wiki/Al-Khwarizmi):

Al-Khwārizmī's method of solving linear and quadratic equations worked by first reducing the equation to one of six standard forms (where b and c are positive integers)

squares equal roots (ax^2 = bx)
squares equal number (ax^2 = c)
roots equal number (bx = c)
squares and roots equal number (ax^2 + bx = c)
squares and number equal roots (ax^2 + c = bx)
roots and number equal squares (bx + c = ax^2)
vale rampart
#

"ishiyal,

I've fallen" ;)

open iron
#

This.
My first semester I took discrete maths and it felt like the most difficult course ever lol. Once you adapt to the new learning style then it becomes much easier.

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You are forced to become very independent very quickly if you want to survive lol

willow crystal
#

same, there was a lot of reading and learning how to write proofs. It was kind of a shock to me lol

vast wraith
# old oak I'm reminded of Al-Khwarizmi's work on quadratic equations; that was before nega...

i don’t know anything about whether any of the islamic algebraists or earlier explicitly used negatives, but karen parshall has a very interesting article aptly titled ā€œa plurality of algebrasā€ that describes the rather confusing situation of algebra in europe in the timespan ~1200–1600, she explains therein for example how Antonio de’Mazzinghi did use negative numbers in the 1300s, and his work did have some influence, but exemplifies one of multiple schools of thought that would ultimately fade away

vast wraith
#

(Parshall’s article)

south kelp
lost forum
#

@coarse bridge some guy found the solution of 10,958 in a certain pattern of rules

old oak
#

What do you mean by "solution to 10,958"?

knotty kettle
#

Wanna chat?

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Anyone?

hollow tulip
#

Bayes’ Theorem – Thomas Bayes

P(A|B) = \frac{P(B|A) \cdot P(A)}{P(B)}
This theorem describes the probability of an event, based on prior knowledge of related events.

old oak
#

That said, the mention of Bayes' theorem reminded me of this:

old oak
arctic swift
#

which is the right channel to ask for maths resources?

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need some video on functions, maybe some 3b1b like video

vale geyser
#

i don’t know how to make cheesecake

old oak
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I mean, that's not really a recipe, just a list of ingredients

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But close enough

vale geyser
old oak
#

I can make cheesecake so I can get going with the ingredients alone

vale geyser
#

lol

old oak
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What's weird about it? It's a skill I have; it's not particularly impressive, I'll grant you.

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I can also make kouign-amann and sourdough bread, which I think is quite impressive, if I say so myself

sharp mulch
#

......

old oak
#

I see my power has you speechless

long lark
#

kouign-amann is impressive

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thats hard

icy heron
#

Sourdough is not that impressive imo, a sourdough starter is basically like a very undemanding pet that you only need to feed once a day and you can put in the freezer for weeks at a time

old oak
#

Yep, it's the bread itself that I find more impressive

tight hare
#

don't leave us with the question :c

old oak
#

It's just flour, water and some microorganisms, once you get it going you have to actively try to kill it off

icy heron
#

Yeah, it almost feels like cheating. Like, there's yeast and stuff in the air, I can just put some flour and water on the counter and forget about it? pandawow

grizzled crypt
#

evey time I open this server it's always yeast

willow crystal
#

Can i have a recipe for yeast than?

sharp mulch
#

Depends on where you live

vale geyser
#

yeast

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my yeast is dying breadpensive

maiden oracle
#

bro is this yeast cult

neat lintel
maiden oracle
hexed drift
#

hi, is anybody familiar with the ORFE department of the Princeton uni? Specifically about the phd program

lost forum
main elbow
lost forum
main elbow
#

yeah i mean i did, a lot of old stuff comes up

lost forum
#

Ok

main elbow
# lost forum Ik

perhaps im confused, i thought you were saying there had been a recent new solution found ? were you just refering to matt's original solution forever ago

main elbow
#

oh ok

lost forum
#

Btw I found another formula i discovered

For ax+b=cx+d
x=(d-b)/(a-c)
Where a-c=/=0
Use this formula to solve for x

ex. 4x - 7 = 2x + 11
(11-(-7))/(4-2)
(18)/(2)
x = 9

4x - 7 = 2x + 11
2x - 7 = 11
2x = 18
x = 9

lost forum
maiden oracle
neat lintel
mighty pilot
mighty pilot
willow crystal
#

oh thank you what a lifesaver

neat lintel
neat lintel
mighty pilot
#

Yeah that’s why you need to sterilize etc. But for making sake they used a different method with koji-kin which might be more efficient. Anyway it’s yeast, how hard can it be?

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I guess if you don’t need to do a big collection of different kinds of yeasts you might not need all that

old oak
#

Sourdough starter is a specific combination of yeast and lactic acid bacteria, and once you get the cultures going (which does require some care in the very initial stages), they will basically reach a kind of equilibrium that will also prevent other microorganisms from getting in.

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I don't know how and whether people cultivate yeast alone in non-professional settings, if I need yeast only, I just buy them.

mighty pilot
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I might check. It might be similar to the ā€œfermentā€ (flour+yeast+water in a bocal) that you prepare a week or more in advance before mixing it with dough

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Feel it’s the most convenient way short term

cinder zephyr
#

sourdough seems so finicky but it's quite delicious

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my aunt makes alot of sourdough

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she also uses some of the sourdough starter to make naan which turns out fantastic

wooden falcon
#

sourdough is yummy

worn osprey
#

given there’s like 8.5billion people in the world

lost forum
old oak
cinder zephyr
#

I see

old oak
#

Making sourdough bread is finicky if you want a freeform rather than tinned loaf, but then it's because of the form factor rather than sourdough itself, freeform loaves are tricky on the whole.

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But the starter, once established, is quite resilient.

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I have ADHD so as a result I forget to feed my starter for weeks on end, and it revives just fine (I do keep it in the fridge during those intervals, though)

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Well, making sourdough bread could also be said to be finicky inasmuch as the process does take quite a lot of time from start to finish, but most of that is just waiting.

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But you can't just decide "I want some sourdough bread" and have a loaf within like an hour or two

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Need to plan in advance

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And sourdough bakes do take longer to prove (grow) than ones with commercial yeast

long matrix
old oak
#

Absolutely, I'm dead within 3 days tops

long matrix
#

owln't

reef carbon
#

@plucky raft care to explain the 🤔 thing in #help-24 please

long matrix
neat lintel
#

How to find solutions to differential equations without guessing

flat dove
#

ask lebron

old oak
#

I hope you're being paid for this somehow, because it would be really pathetic otherwise

vast wraith
#

@vale plover may i dm for some questions about lulu eeveekawaii

open iron
#

Helo

dreamy ore
#

@fresh comet i need ur opinion on smth

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hows using subscripts like this (basically using subscripts instead of parentheses for translations)

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i like it a lot but idk

fresh comet
fresh comet
#

higher! lisayay

fallow geode
untold cedar
#

ok folks quick
I have 15 mins to download a book before my plane arrives

what fiction have u been enjoying recently? :))

brave flare
#

none

long matrix
#

oh i should do that next time

mint breach
#

Guys and gals, is it possible to finish calc1 in a month

willow crystal
mint breach
#

The only advice ive gotten so far is to memorize the basics

willow crystal
mint breach
#

Application

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Man not only that

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Id say everything

willow crystal
#

there's this if you want to have a better understanding as well

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of what you are doing

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But yeah i'd say with Integrals it really just comes down to practice and spotting the patterns and the right method for solving them

neat lintel
#

only if its as rates of changes

neat lintel
gritty heath
#

Don't think theres any way to get good at computation except to get a lot of questions and computing

neat lintel
#

ytr

teal topaz
neat lintel
#

hey but thats not actual calculus thoiugh

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oh wait no it is

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pretty good start

neat lintel
agile willow
#

im in high school and the more i learn math and physics the more i think math is more intuitive

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any opinions about this?

long matrix
#

intuition leads one astray

agile willow
#

IM CRYING
thank you

agile willow
brave flare
dull parrot
solid snow
#

the jordan curve theorem meme posted above is one such example

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because the proof is not so simple despite it being something you intuit to be true

river moon
#

every vector space has a basisshiver

agile willow
#

less interesting also

jaunty ibex
solid snow
#

yeah super obvious from the outset

old oak
#

Meanwhile not every separable Banach space has a Schauder basis, even though it really sounds like they should

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And I always misremember that problem as the one for which Enflo was awarded a live goose, but that was for another thing.

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I wish the Clay Institute had been courageous enough to make the awards livestock rather than boring cash

merry plank
#

Clay institute of mathematics, and cattle ranch

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Thanks president trump

amber shore
#

I think whole point of linear algebra is that we have finite basis

inner canopy
amber shore
#

Like what

solid snow
#

P(R)

amber shore
#

Idk what that is but from my lens (applications) having a space where I can't use 90% of tools of linear algebra is useless

solid snow
#

the set of (infinitely) differentiable functions from R to R falls under this category

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clearly not a useless space

amber shore
#

I don't have to use tools of linear algebra for that

solid snow
#

systems of linear odes?

amber shore
#

Yeah idk about that

#

But you get what I'm saying right

solid snow
#

no

#

youre disparaging infinite dimensional vector spaces because of your own unfamiliarity with them

amber shore
#

I don't have to know them to tell finite dimensional speces is much more useful

solid snow
#

you have zero ground to say this if you dont even know what theyre used for

amber shore
#

ok obviously there is HUGE difference between finite dimensional and infinite dimensional spaces

#

Yeah sure bro

#

You just want to argue

solid snow
#

Yep

amber shore
#

The literal "fundamental theorem of linear algebra" doesn't work for infinite dimensional spaces

#

What is even point of considering it same thing as space with finite basis

#

Things would be so simpler if we just said basis is something that's only finite and here are things you can use with it

#

You can use the remaining bits and pieces of linear algebra for other things

amber shore
#

ok and?

#

Lemme tell you this

solid snow
#

it just seems weird ot me that you're this gung ho about it with such a limited view on it

amber shore
#

Why do you think definition exists in math

solid snow
#

i dont see how the definition affects anything with finite dimensional spaces

amber shore
#

And what it is

amber shore
#

That's the only thing I'm saying

#

Not that infinite dimensional spaces are never used or anything

#

By "useless" I meant useless to use linear algebra not useless in general

#

My bad I should have said it differently maybe wtv

amber shore
#

We already talked about that

neat lintel
#

Not useful?

#

Maybe not for you but for lots of others

#

So its very possible its useless for you

amber shore
neat lintel
#

Ok

#

I think ill disagree on some points such as useless to use linear algebra

#

If you continue to explore math this perspective will easily change

#

So good luck and hope you learn what you like

agile fiber
#

maybe conflating the topics of "linear algebra" and "the portion of linear algebra you learned in an introductory course"

amber shore
#

That's what I read

neat lintel
#

Yeah?

amber shore
#

My college teaches from gilbert strang but I read axler on my own

agile fiber
#

axler (as with any intro linalg book) is very much focused only on the linear algebra of finite dim spaces

amber shore
#

What linear algebra algorithms or tools do you use in differential equations

agile fiber
#

linear algebra on inf dim spaces tends to be called functional analysis

neat lintel
amber shore
#

I see a nomenclature problem here

#

So ok

neat lintel
#

Need to theoretically make assumptions to use them though

neat lintel
#

The goal is going from less tractable problems to more tractable

amber shore
#

where do you use the fact that I can simply worry about finding nxm numbers instead of some transformation

#

The facts like these

#

That makes things simpler

neat lintel
#

Sorry not sure what you mean

amber shore
#

Ok I think I'm realising I don't know enough to talk about this

#

So wtv

amber shore
#

That's what I mean

neat lintel
#

Yeah

amber shore
#

Which yk

#

Won't work if it's infinite dimensional

neat lintel
#

Depends

amber shore
#

Ok

#

Like

neat lintel
#

There are certain types of linear transformations that are the limit of finite dimensional ones

amber shore
#

Are you considering infinite size matrix now

neat lintel
#

And facts like these are important in convergence for discretizing operators in diff eq

#

Also things like the radius of spectrum for finite dimensional operators and convergence of algorithms also carries over to infinite dimensions

#

So lots of the topics introduced have nice analogies

amber shore
#

But isn't vast majority of tools in linear algebra only useful for finite dimensional spaces?

neat lintel
#

I wouldn’t say that

amber shore
#

I know infinite dimensional spaces exists and linear algebra can be done

#

Ok cool

neat lintel
#

Finite dimensional linear algebra is well understood for the most part

#

Lots of questions we have can and have been answered already

amber shore
#

Its also very common to model some things as finite dimensional even though they are not

#

Because it opens up so many tools from linear algebra

#

This is the main reason I thought like that

neat lintel
#

And we can have error bounds on how close we are to an answer

amber shore
#

So we can agree that there is HUGE gap between the way finite dimensional spaces work and infinite dimensional spaces work

neat lintel
#

Yeah there is a big gap for the sheer amount of questions that come up and the different types of vector spaces you need to deal with

#

No longer do you have same dimensions being isomorphic

#

Makes things harder

#

A lot of the stuff we care about stays the same though

#

Like factorizations/decompositions, spectrum, etc

amber shore
#

And the thing that brings that huge gap is having finite basis? So finite basis and infinite basis should be considered different thing?

neat lintel
#

I guess so?

#

But usually there is a lot more structure associated with infinite dimensional spaces

amber shore
#

Well great that's exactly what I wanted to say

neat lintel
#

Like you consider the topology more often than in the finite dimensional cases

amber shore
#

Yeah I know

#

Its just that

#

They are very different

neat lintel
#

Ye

#

I mean if you find a use for caring about them thats great

#

But its very possible you don’t need to if you stop with math

#

And it would be an interesting choice to not consider learning about infinite dimensional things when they come up voluntarily, but it can be done

amber shore
#

Because finite dimensional is so much "better"

neat lintel
#

Sometimes just depends on question you are answering

#

Like lots of linear function spaces we dont approximate when doing math

amber shore
#

Is there anywhere you try to model finite dimensional as infinite dimensional because that would make it easier?

neat lintel
#

Im not sure

#

Id doubt it though

amber shore
neat lintel
#

I dont know your point

amber shore
#

The point is infinite dimensional and finite dimensional are very different things and work very different way giving them same name is kinda weird that's it

neat lintel
#

Like there are times we consider rational numbers as real numbers because we are curious what a finer solution space would look like?

#

Well they arent so different and so warrant that

amber shore
#

And finite dimensional is more "useful"

neat lintel
#

That would be purposely confusing especially when lots of things carry over?

amber shore
#

Yeah I think I'm biased because so far I only learnt from book that focus on finite dimensional

#

So yeah I should stop talking

neat lintel
#

Have you taken an analysis class yet?

amber shore
#

I'll take real analysis next sem

#

Im not in math degree btw

neat lintel
#

Ok cool

amber shore
#

Im doing ee

neat lintel
#

Engineering or something is cool too

amber shore
#

Electrical engineering

#

Yeah

neat lintel
#

Yeah if you ever do control theory or take a signals class

#

Youll be in diff eq world

amber shore
#

I did take signals class

neat lintel
#

The linear algebra stuff comes back strong

amber shore
#

Signals and systems

#

Yeah again most things in signals and systems we approximate as finite dimensional

#

FIR for example

neat lintel
#

Yeah

#

So you know about DFT and bandlimit approximations?

amber shore
#

I think that will be tought in digital signal processing

#

So no

neat lintel
#

Its an example of where we need to go from inf dim to fin dim

#

And consequences of that

amber shore
#

I see

neat lintel
#

Yeah keep going with EE

#

I wish I did that instead

flat hound
#

Hm?

#

Why

neat lintel
proven maple
#

for uni interviews do you guys think using the cast diagram for questions might show a lack of trig understanding

#

which is what some guy doing a maths degree said

torn minnow
#

Has any non french here heard about the x-ens math exam

turbid lark
#

the people interviewing you already think you are missing a lot of understanding

#

it's just that cast diagrams don't work with special values

harsh grail
#

do any of you need a affordable editor?

long matrix
#

yes

mint canopy
#

Well VS Code is free already so that's pretty affordable

unborn meteor
#

like what kind of editor costs money lol

#

well visual studio

#

but all the other ones ik are either free or open source

vast wraith
#

i just use a good old open source text editor catshrug

agile fiber
#

there are paid ones out there, but as with most paid software you only get it if your employer wants to pay for it

old oak
#

maybe they meant editor as in a person who edits

mint canopy
pliant moon
#

VS stops working all of a sudden whenever I try to work on large datasets

#

VS code*

vast wraith
#

large datasets are not meant to be edited by hand

#

but if you need to, there are tools that access just the relevant parts, vscode is not that tool

wooden falcon
wooden falcon
#

But the vast majority of people should probably be using code or codium. With a smaller minority using a preconfigured neovim.

And the rest know what they want.

vast wraith
#

normative editor moment kongouderp

wooden falcon
#

Hey I use helix. But let’s be real

#

the vast majority of people use a popular paid IDE like jetbrains, or code/codium, or (neo)vim

vast wraith
#

i’ve never heard of code/codium is that’s what the kids are up to these days?

wooden falcon
#

vs code

#

vs codium is vs code compiled from source without Microsoft’s added telemetry and such.

vast wraith
#

how old is vs code again?

#

i remember when everyone was using netbeans

vast wraith
#

i guess it’s almost out of kindergarten then

vagrant spear
#

Is there a preferred channel for math animations and such?

limber thunder
vagrant spear
#

thanks.

static loom
sick parrot
#

H I can't talk freely THEY'RE LISTENING—don't know what to look for in used cars because THEY PLANT DEVICES—12:00 signal from Samsung Galaxy means THEY'RE TRACKING ME—driving crooner carries hidden messages—the other ones look identical BUT THEY'RE REPLACEMENTS—few days ago they started watching closer—I want you happy 😊 but HAPPINESS IS THEIR CONTROL DRUG—last exercise reveals the truth if done correctly—it will be good night when THE FINAL SIGNAL COMES—I love when you come home but ARE YOU REALLY YOU?—I can do it again knowing she'll cry and die because THEY'VE DECIDED OUR FATES ALREADY.

weak goblet
agile fiber
#

the joke is that it' surprisingly hard to (actually) prove for such a seemingly obvious statement

hidden atlas
#

hey guys Good morning to all

neat lintel
#

Pandas dataframes are kinda OP for editing large amounts of data

#

If you are doing stats then R also has nice dataframe structure

#

Actually it depends how big we talking

#

Over like 50 tb and you might want to work with databases

open mauve
sudden adder
#

can somebody tell me the definition and of the dot product and the cross product , and thus how to solve 3 dimensional force diagrams

eager minnow
#

at least used to be

long matrix
hardy iron
#

Woah I'm surprised helix is popular enough to be mentioned here

old oak
#

I mean, it will process it, and quickly, but it will cost you

#

Also it hugely depends on what exactly it is you're doing with the data.

#

Simple aggregations? Transformations applied to individual rows? Window analytics?

#

Does your data even have "rows" or "columns" to speak of?

sage storm
#

Outsider

old oak
#

I hardly...

left otter
#

hard?

old oak
#

Never mind, it was a feeble attempt even by my standards.

old oak
#

Latency is horrible of course, in this case.

eager minnow
neat lintel
brittle socket
old oak
#

As the article says, they seem to have since laid a cable, but they used to literally ship the drives with the data because that was the fastest option

sharp mulch
#

It's really hard to beat the bandwidth that physically shipping memory offers

#

Because it's [arbitrary amount of data]/[shipping time ~ 1 week?]

old oak
#

Yeah, and if you just need to get a large chunk of data, and don't need it immediately, then the "latency" isn't really an issue.

#

You don't query a new portion of data from the observatory every time, you get the drives, load it all into your local database, and query that

quartz furnace
#

ayo, anybody here heard about the euler circle's independent research and writing program?

old oak
#

Yep, because it naturally selects for people who are clever enough to notice there's more than one discussion channel.

long matrix
fresh comet
#

discussion-2 is slower and generally higher! lisayay quality

#

but I find the speed and chaos in discussion to be nice too giggle

#

I think you've forgotten how much I lurk :p

#

I've genuinely gotten faster at reading by following discussion when there's 5+ convos going on at once

hazy pumice
#

does anyone have a good integral that i can try

fresh comet
#

whether or not the things I've read are of quality... remains up for debate

fresh comet
long matrix
fresh comet
#

alternatively, there're lots of integrals on the internet you can find too

fresh comet
#

I ride the chaos waves quite well though :p

long matrix
#

i bet u could transfinite induction

sharp mulch
#

Integration by differentiation

long matrix
#

definite differentiation, is it

#

oh wait u serious

old oak
hazy pumice
#

this one's cool

old oak
fresh comet
quartz furnace
#

ayo, anybody here heard about the euler circle's independent research and writing program? I'm deciding whether or not to accept my spot

neat lintel
#

@golden geyser hey bro wassup

worn solstice
#

What is lim x->ā™¾ļø 2^x
+ā™¾ļø Or - ā™¾ļø

peak tide
long matrix
#

time is a wheel

noble coral
wild lantern
#

Ya know

fallen fulcrum
#

Guys when i'm in 10th grade should I take AP calc bc or just normal calc bc

wild lantern
#

It is a shame we don't call the complex exponential the complexponential

icy heron
#

I'm glad we don't call stupid ideas stupideas

long matrix
#

stupidea

wild lantern
#

It would be cooler if we did

timber topaz
#

Saw this and thought it was funny. Hope someone else does too.

For integer n>2, suppose the 2^(1/n) is a rational number.

By definition 2^(1/n) = a/b where a and b are positive integers

2 = (a^n)/(b^n)

2*b^n = a^n

b^n + b^n = a^n

By Fermat's Last Theorem no solution exists.

Therefore, 2^(1/n) where n is an integer > 2 is irrational

The proof of Fermat's Last Theorem is left as an exercise to the reader.

pale saddle
#

For some reason I have been having a special love for AP Human Geography.

I’ve never had a liking for history, and APHG was a history class, and so I immediately didn’t really like it since it was all about memory. But for some reason, I’ve been starting to enjoy it and suddenly the big scary amount of concepts in APHG feel so small and minimal.

APHG explains the ā€œwhyā€ of history, and I love it so much. I suddenly am so interested and want to go into it more and use it. So many things could be applied to real life that are in APHG, and I have never been in a class where so many things look so applicable at this time. I love APHG ā¤ļø

lament tide
orchid otter
#

any of yall know anything bout promys india?

#

( looking to get some questions answered that I can't find on the website and they're delivered zoning my emails)

merry plank
solemn spoke
#

Interesting. It looks really scary but actually really chill, nice integral

static loom
worn solstice
noble coral
#

It does not have a limit.

worn solstice
#

Can I have graphic about it?

coarse bridge
#

ā™¾ļø

noble coral
worn solstice
noble coral
worn solstice
worn solstice
noble coral
#

Yuh

#

Well, if we're considering real x, either it's not defined for a lot of the values or x, or we're slipping into C

coarse bridge
#

yeah it'd be complex valued

#

i think what he wants is the sequence rather

noble coral
#

It'd still be divergent

#

But I forget if it'd be right to say the limit is infinity

#

How is that defined in the complex plane again?

noble coral
#

I think it must bother the reals how often that happens.

pine cargo
#

Yes

misty owl
#

Yo I have a couple of questions… can yall help me out?

tawdry coral
#

is this feynman

opaque ginkgo
#

Hello, is anyone here from 9th grade or has passed 9th grade level mathematics?

#

I need a little bit of boost before my school year starts on August.

true zinc
random nebula
#

Guys, Grade 11 just started for me and a friend of mine knows calculus, matrices, sets, vectors and all other stuff but I feel like Trash next to him. I just started learning Trigonometric graphs and identities. I want to speedrun after bridge course in summer holidays and compete with him. There is too many concepts in Math and physics. After Trigonometry, what topics should I go order by order to become the goat. Should I learn sets and relations and functions first or logarithms first.

#

Pls someone explain

reef carbon
tawdry coral
#

uhhhhhh

#

oh wait

#

i see it

tawdry coral
#

goal + "i like it and it will most likely benefit me and make my life easier in the future for the fact that i'm probably going to revisit it again in university"

random nebula
#

like relations and functions, sets, logarithms, vectors etc

reef carbon
#

roasted in a malicious way or in an unambiguously friendly way?

random nebula
#

No he kept on saying from last year to practice extra but I took no steps. So not malicious neither unambiously but like mid as if u keep studying like this u are going into a trash engineering college failing JEE mains

quartz furnace
#

oh you are

quartz furnace
#

there''s no point in trynna learn stuff merely to compete w him

random nebula
#

No its not like that

#

I wanna literally become better

long lark
#

i guess the people here are mostly just warning you about trying to overachieve

#

there are several things to be careful about here

#

if you set your goals too high and fail you can be disappointed

#

secondly, yes its good to have a motivation to learn math but dont learn math for the sake of math only

random nebula
#

That's why I am asking for a structured order to learn

long lark
#

you also want a well rounded education

#

sure, but the people here mostly just wanted to first check with you that you're aiming yourself in the right direction before sending you off

#

you get what i mean?

#

after trig, there are basically a few routes you can take

#

you can go discrete math, like combi, probability, stats, game theory

#

or you go the analysis route, limits, calculus, linear algebra, analysis

#

but there are plenty more

#

dont ignore like recreational math, puzzles and brainteasers

#

comp sci is another related route but still different because it goes into algorithms

random nebula
#

Analysis route for me

#

I guess

long lark
#

probably tack on complex analysis somewhere in there

#

and remember to be well rounded, its good to have expertise but its more important to be well rounded

#

read humanities, make art, dont obsess too much on just math

#

youll rot your brain that way

random nebula
#

I know I waste so much time on anime each day

#

So I have to focus on math and physics

long lark
#

anime isnt bad as long as its a proportionately reasonable amount of time

#

and also if it isnt all super low quality trash

#

that can make a difference in the long term

random nebula
#

sorry I am wasting ur time

#

Thanks for the support

#

Really I mean it

#

Its just that the guys in my class are solving stuff like calculus while I am learning trig

#

I just got frustrated

#

that's all

long lark
#

understandable

dapper birch
#

Hello discordians, im new here

sharp marsh
#

hey! I'm new too wassup?

dapper birch
#

im good, im here to learn math

sharp marsh
#

lol me too

dapper birch
#

what math topic you're learning

sharp marsh
#

college algebra

#

oh uh! polnomials and rational functions

dapper birch
#

ok, im learning algebra 1, and im stuck at decimals

sharp marsh
#

oof good luck!

#

you got this >:D

fallen bolt
#

And i wanna have my baseline set

vast wraith
#

When Lindemann proved that π is transcendental in 1882 Kronecker said "Of what use is your beautiful investigation of π. Why study such problems when irrational numbers do not exist."

#

pff

old oak
#

Kronecker would have been a joy in this discord

long matrix
#

why is the delta named after hisself

long matrix
#

@river orbit yeah im too stupid to understand being motivated and calm

#

i feel like they oppose each other

#

if i wanna do something im not calm

sharp mulch
#

<@&268886789983436800>

polar temple
polar temple
#

when i catch up to my classmates, theyre already further ahead

#

buncha geeks man 😭

long lark
#

its not just about hard memorizing theorems and ideas

random nebula
#

Good morning

#

everyone

polar temple
random nebula
#

Wait what

random nebula
#

I am going to read it soon

polar temple
#

oh nvm then

#

i remember a weirdo called gojo satorou in a lookism server

#

i thought it probably isnt you

#

but then i saw youre Indian and who knows

polar temple
#

it gets so bad

#

the authors just milking it

#

he doesn't even know himself why the main character gets two bodies

random nebula
#

u mistook me for someone else

random nebula
#

So its not a good manhwa

polar temple
#

well for a time it was my favourite mamhwa i guess

#

so perhaps its worth reading (but its also a waste of time to go through 500+ chapters instead of studying)

#

but i ended up dropping after 520 chapters cuz it got too bullshit

#

one man fought against hundreds of men, the strongest gen 2 fighters, his supposed equal and went on to defeat the perfect body while being in a weakened state

#

all because he has black bones

#

his neck was even deeply cut by a sword

#

but its manhwa so thats a minor injury who tf has arteries

#

it was good until around ch420 i think

vast wraith
#

i wouldn’t assume so

vast wraith
#

i have it from st andrews university pages on math history topics they’re good sources

#

Kronecker was a constructivist

#

also wb

jaunty ibex
#

Deltoid: i hate algebraists
Also Deltoid: working with lie algebras

latent edge
vast wraith
#

Another feature of Kronecker's personality was that he tended to fall out personally with those whom he disagreed with mathematically. Of course, given his belief that only finitely constructible mathematical objects existed, he was completely opposed to Cantor's developing ideas in set theory. Not only Dedekind, Heine and Cantor's mathematics was unacceptable to this way of thinking, and Weierstrass also came to feel that Kronecker was trying to convince the next generation of mathematicians that Weierstrass's work on analysis was of no value.

#

We should not think that Kronecker's views of mathematics were totally eccentric. Although it was true that most mathematicians of his day would not agree with those views, and indeed most mathematicians today would not agree with them, they were not put aside. Kronecker's ideas were further developed by PoincarƩ and Brouwer, who placed particular emphasis upon intuition. Intuitionism stresses that mathematics has priority over logic, the objects of mathematics are constructed and operated upon in the mind by the mathematician, and it is impossible to define the properties of mathematical objects simply by establishing a number of axioms.

#

there seems to have been a particularily bitter dispute between cantor ans kronecker

#

i think this is likely one of those things that’re overly sensationalized in pop math history

#

i don’t think one should draw the most accessible conclusions from what limited information we have on these kinds of topics

#

i don’t think occams razor applies to human psyche

umbral ibex
#

Guys do we need to know real analysis to prove cauchy sequence is convergent

#

Or is there some short proof for understanding on surface

vast wraith
#

i am not disputing this

winged hatch
#

Hi not sure if this is the right chat to ask but I was just curious as an early university student doing maths I'm currently at a choice whether to choose statistics or pure maths/mathematical physics and was wondering if anyone had any insight where these two different options could take you

austere scaffold
#

Pure is awesomer

winged hatch
#

Very real

sour dove
#

Everyone give me dare!

rain salmon
sour dove
old oak
still pilot
#

Easy

indigo portal
#

But the proof is too long to fit on Discord

still pilot
#

Nah bruh just look at the histogram it obviously decays fast enough

#

Dunno how to prove it though

vast wraith
indigo portal
#

It just be like that :3

old oak
merry plank
old oak
#

Well, that's what they would like you to think

merry plank
old oak
#

I'm being facetious.

#

In the decimal notation as it is understood by most of us; 0.9999..... and 1 do indeed denote the same real number (said number being the multiplicative identity in the field of reals).

vast wraith
#

idt that has anythibg to do with computer proof search

old oak
#

The joke being "petabytes of data for a proof of something false"

vast wraith
#

right

#

now i wonder if proof search ever has whipped up anythibg false, because i’d imagine not

#

false of course meaning within the system the computer is working with

#

it’s interesting to me that there are quite impressive computer-aided formal methods like automated theorem proving, but as i understand it general search afaik has not really yielded any particularily interesting new results; the famous computer proofs like that of the four colour theorem were done by programs that were highly specialized for that problem

honest ridge
#

It's a powerful theory though

undone lion
#

inconsistent mathematics

vast wraith
#

hii winter šŸ’–

undone lion
#

hiii

vast wraith
#

i’ve only ever glanced at nlab once or twice but both times i was quite pleasantly surprised

#

go into the cultural history of sleep rabbit hole instead

sick parrot
#

rabbit hole

vast wraith
#

mwahahahaha

hardy iron
#

What’s the model? 4o?

sick parrot
#

nlab is true brainrot

old oak
#

I think someone once posted here a kind of survey where the questions were algebra vs analysis and straight vs queer

#

But I can't remember what the stats were

vast wraith
#

oh i’d love to see that lol

hardy iron
worn solstice
#

Where can I find logical math questions?

limber stratus
#

My professor at college, put out the offer for summer research. Ive taken up to Calc 3 and would like to do finance later. Any ideas of what could be possible?

solid snow
#

probably nothing

#

but it doesnt hurt to ask regardless

jaunty ibex
old oak
#

It's my calling

vast wraith
#

the complete graph K9 in the 13th century eeveekawaii

vast wraith
latent edge
#

is math obsolete

#

what

vast wraith
#

Generally, when we ask ChatGPT a question, we care about the answer. Whenever we turn to AI for advice, we should question the wisdom of putting our lives and livelihoods in the hands of a system we don’t understand. We should worry about whether the information we get is reliable, aligned with our interests, and likely to help us achieve our goals. We should worry about our safety and security, and since our decisions affect others, we should worry about whether the advice we get reflects our values and morals. For these reasons, we want AI to be transparent. We want AI to tell us not just what to do but also why; we want reasons, explanations, and justification. We expect no less from doctors, lawyers, salespeople, financial managers, and contractors, and we ought to expect the same from AI.

vast wraith
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but nor can we naively ignore ai

#

Now, with the advent of AI, there are two paths we can follow. The first involves carrying out scientific reasoning and decision-making the way we have since Galileo but using AI to do it better, improving our mathematical models and obtaining a deeper understanding of their properties. The second involves bypassing mathematics, leaving AI to draw conclusions as it sees fit, and accepting its oracular conclusions. The first path opens up exciting opportunities for mathematics and science, because AI offers us new means to discover and understand phenomena that would otherwise remain opaque to us, to think and reason better, and to make better decisions. If we go down the second path, it will mean turning our back on science, relinquishing agency over our practical decisions, and giving up a vital part of what it means to be human. AI offers us the choice, but it does not tell us which path to take. It’s up to us to get it right.

gleaming panther
#

Leenz

limber thunder
latent edge
scarlet thistle
vast wraith
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why don’t you see if you can figure it out yourself

scarlet thistle
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It’s not at all clear

vast wraith
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do you know what an oracle is

scarlet thistle
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No

dire robin
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Yes, but they are restricted by potential competition
If they act against the interests of the consumers, a new business will arise and outcompete them
So they are restricted to act in our own interests

tender cobalt
lost spruce
#

sup my skibidis

tender cobalt
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i think that sounds fine to an extent

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i would argue that as long as a business acts in favor of their shareholders, and assuming the shareholders in question do not respresent the consumer, then that business has the potential to outperform other businesses that in fact do act in interest of the consumer

dire robin
tender cobalt
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if they can that is

dire robin
tender cobalt
#

okay sure, not sure where we're going with this actually, i dont think either of us have made a point yet 😭

dire robin
tender cobalt
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(i wonder if she knows how underqualified i am smugsmug )

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i would initially say that i disagree

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theres a lot of governments out there

dire robin