/sci/ - Science & Math

>>8586210
Pure Mathematics

>>8586214

>>8586243
I actively avoid all xi's

>>8586210

>>8586228
LMFAO

>>8586220
kek

>>8586220
that's actually smart, because 2 is a rational distance away

>>8587386
You have obviously never met an engineer.

>>8586220
I chuckled

>>8587133
Good one

>>8586220
Lold, thanks

>>8587386
It doesn't matter because you don't need to reach the exact location to drink the water

>>8587586
You just need to converge to it in the Cauchy sense
https://www.youtube.com/watch?v=n12bfWTw9Hk

>>8586220
>>8587149
>>8587467
>>8587549
Who's that guy though?

>>8587606
Stefan Molyneux

>>8587606
Wildburger, owner of a popular venison burger franchise in canada

>>8586210
>>8586212

>>8587605
lel
pretty cringy but made me chuckle

>>8587729
>barnett-mochizuki suicide criteria
kek
also 10 points

>>8587729
20 exactly, so ha
10 if you don't count dropout, since I'm going back to school after some time off. The administration really fucked me up the ass, but really that's what I get for going to a super liberal school.

>>8587741
>>8587745
let me guess
>no gf
>no irl accomplishments

>>8587750
>no gf
>no job

>>8587729
10-15 points
just barely

>>8587753
Actually this for me too
I've made MDA along a previously unreported route and that counts as an accomplishment. Even though it's fairly standard replication of existing synthetic methodologies in the literature. At least two papers were bunk, though. Go figure.

>>8587722
but why?

>>8587763
How'd you verify your final product?

>>8587729
15 isnt higher than 20

woo

>>8586285
Underrated post

>>8587767
the >on makes it

>>8587766
>inb4 "qualitative bioassay"
I mean, we did do that, but we got a GC/MS first.
We went kinda overboard on the recrystallization. I filled like half a page of my notebook with autistic descriptions of the "prismatic needles"

>>8586220
Kek

>>8586220
>left sign: 1000 miles
>right sign: -1/12 miles

>>8587969
Won't he go 1/12 miles to the left them?

>>8586226
>where the sum is all over kxk minors of A
typical greek

>>8586285
I don't get it

>>8588043
No he'll have to go infinite miles right before he gets 1/12 miles left

>>8586289
pull the lever and walk away then everyone the people in A and B will be alive and dead at the same time forever but at least not completely dead

>>8588094
Look him up. He's proof that with a PhD in Math you can do anything you want.

>>8588340

>>8588340
Sweet baby jesus

>>8586223
In the case of a quantum trolley, it will go through all three slits at once, and only once you look at the results will the trolley wave function collapse, thereby determining which of the three paths the trolley actually took.
Therefore, before observation, the trolley will have killed 11 people, and either 10 or 6 people will be revived after determining the path of the trolley.

>>8586220
lel

>>8588094
underage b&

>>8586243

I just render most symbols in my own unuiqe way so that they can be recognized and also written.

>>8588594
choice B is impossible, so clearly choice A is the only choice

but then because of the definition of choice, this is a contradiction

the number of people run over by the trolley is an unknown rational

>>8588714
But by choosing one you sabe -1/12 people so A is the best

>>8588340
KEK

>>8588718
They would have to be grouped as 1 person, 2 people, then 3 people, et cetera, for that to occur, and even then, it would have to go on infinitely, which people on Earth do not do.

>>8588757
Yes, but 1+2+3+...+n is also 1+(1+1)+(1+1+1)+...

>>8588788
You still grouped them by 1, 2, 3, et cetera. If you group them differently, the answer will change. For instance, if you group them by squares (1, 4, 9, 16, ...), you'll get a total of 0. If you group them by cubes, you'll get -1/120. In the context where 1+2+3+... = -1/12, the grouping does necessarily matter.

>>8588788
>>8588801
the number of people on earth is finite

>>8588594
wild would kill himself before accepting any of those

>>8588897
Killing himself doesn't solve the ethical dilemma. It is equivalent to not pulling the lever.

https://www.youtube.com/watch?v=zkn_bRM1LOQ

>>8588897
in fact, he is one of the people on earth, so he must already be lying down on the track

>>8588409
Fuck this made me cry from laughing.

>>8586210
My favourite /sci/ joke is the existance of uncountable sets. The sad thing is that some people actually fall for it and think it's not a joke, lol.

>>8588721
Stop posting this, you aren't funny

>>8586223
Yes, it would be in my best interest to change my original answer. A tidbit I picked up from a movie "21" (where the kid counts cards) is that your chances of choosing the correct door rises when you change your answer, after an option is revealed to not be the correct answer.

There's a reason behind it, it doesn't make any sense to me, but it was in a movie so it must be right.

>>8589739
Alright i keked

>>8589739
Fugg :D

>>8586210
I keked for the first time in awhile

>>8589870
/r/ing the .m file to plot it.

>>8587750
what exactly is the meme here? isnt it the same equation?

>>8587729
25...

>>8588594
I'd love to make it run over all the irrational people.

>>8586226
First one is insufficient, and third one is best. Yes the 4th is being too complicated. It doesn't resolve any problem that 3rd one wouldn't. It doesn't matter though, because when you know math you read them the same way though.

>>8588721
see >>8591254

>>8592670
KEK

>>8586210

>>8586285
kek

>>8591272
At the beginning you have a 2/3 chance to be wrong. So yeah switch when one of the wrong ones is revealed.

That is the simple intuitive answer.

>>8588340
>PhD in mathematics
>5 felony indictments starting
>any cell in ADX florence I want

>>8592643
The top is Stokes' Theorem (which is only defined in 3 dimensions with the cross product there). The bottom is the n-dimensional formulation.

just happened to me when I tried to look up the definition of A-stability

>>8586243
Fucks sake, mathematicians have their own pronouns now?

>>8586210
http://pastebin.com/B98R2rSg

>>8586214
I'm an electrical engineer and even I LOVE pure mathematics. I love most fields of math desu. I'm even reading a book albout paradoxes right now. (and simultainisly sucking cock ofcourse)

>>8595035
how long is it?

>>8595056
75 pages. It'll take me all night to finish this one off!

>>8595060
I was talking about the cock.
t. another engineer

>>8587729
when you score a 40
:)

>>8594917
lol

>>8586299
kek'd

Explain the root 2 meme for me.

>>8595030
noice

>>8592670
funniest post ITT

>>8595180

>>8595180
>implying root 2 even exists

>>8586220
that's a good one -

>>8586285

>>8586243
My xi's are perfect.

>>8595329
lol what the top one is acceptable but the rest are fucking italic my dude

>>8586285
>>8595322
kind of related

>>8595056
about 1200

>>8595060
not me

>>8586212
>isomorphic cyclic groups of order 2

you could just say groups of order 2

>>8595460
that's fucking savage

>>8586285
>>8588340
kek

>>8587411
?

>>8587969
-1/12 is 12? No? Yes? Help?

>>8591272
Consider the problem scaled up to 1 million tracks. When you first choose you have a one in a million chance. If all but one other track are revealed, then you are left with one other option. It is easy to see here that switching is the best option.

Can think about it like this. You picked a door that contains 1/3 of the probability. The other 2 doors contain the other 2/3 probability. When one is opened then you only have one option left but it still must contain all the 2/3 probability; that probability isn't going anywhere.

>>8593718
>>5 felony indictments starting
i can't stop laughing

>>8587763
post link pls

>>8595576
no, -1/12 is infinity

>>8595060
>hurr engineers are bad at math durr
I am a math olympiad. Taught myself tons of non-engineering related university-level math without any problem. I choose engineer, because I made an investment-to-(eventual financial and emotional reward) assessment in my head for all the majors I was considering and have no regrets because it's a very broad an interesting major. And there are many others like me. The specific field I wanted go into is basically applied math anyway + a lot of other engineer stuff, math majors will never see.

But all of that doesn't even matter. My point is "why do I even have to defend myself on /sci/?". Let's for the sake of argument say that I was terrible at math and it would take me a long time to read a mathbook. Does that mean I shouldn't be reading mathbooks? Does bullying someone out of reading mathbooks make you feel good? I would argue that a person who truly loves mathematics (or /sci/-stuff in general) feels the complete opposite and wants to share it with the world.

If you're so smart and confident of your abilities, why not help others reach to your level, instead of actively mocking everyone beneath you who is attempting to climb. I promise you that it's the most gratifying feeling in the world and it will make you an overall much happier person.

>120 posts and 40 images

Poor show.

>>8592679
Obviously the last two are mathematically the same. But I would disagree that the fourth one is always "being too complicated". I would think that for a CS person for example, the last solution would be a simpler formula to work with in practice than the third.

>>8596403
>will never see

like what?

not trying to get at you, i enjoyed mechanics at high school

>>8587722
i dont get it

>>8596656
one is a shit book for freshemn, the other is an important treaty by the greatest mathematician of all times, Stewart

>>8596738
may I ask why its citing both and why that book is shit?

>>8596738
lel

>>8587386
Are you under the impression that the physical world exhibits mathematical perfection? Just cuz a sign says that, doesn't mean you can actually place water an irrational distance away, you non-engineering cuck

>>8587411
>>8587586
>>8596941
Wtf are you guys talking about?? Irrational numbers aren't some impossible to reach state or something. That's like saying Achilles can never outrun the turtle. The diagonal of a 1x1 square is EXACTLY sqrt(2). The circumference of a circle with diameter 2 is EXACTLY pi.

And don't start about real life measuring errors. I'm talking about the fact that you guys act like irrational numbers are unreachable states, just because writing them out in numerical form would take an infinite time.

>>8596941
>Just cuz a sign says that, doesn't mean you can actually place water an irrational distance away
sure you could?

>>8596415
aerodynamics, tons of chemistry and material sciences, microfluids, nanotechnology, a shit ton of electronic circuitry stuf, control theory, lot's of procedures to process materials or chemicals Dynamics., and much more

Obviously you will have seen more math and more in dept than me. But to think that you have seen everything I have seen is an absurd statement.

>>8588043
>>8595576
The joke is that the sum of all positive integers equals -1/12

https://youtu.be/w-I6XTVZXww

>>8597585
it actually doesnt and relies on a fake proof

>>8597053
>>8597377
Well doesn't that depend on whether space is continuous?

>>8597587
But that's where the joke comes from.

>>8597585
I'm a newfag to this board and just lurk because sometimes funny threads like this pop up, but is this basically a strawman in mathematical form?

>>8597590
i know. i get the joke but its wrong

>>8597654
its not a strawman, a strawman can actually grasp at something. this is objectively wrong

>>8586223

>>8588409
>The amazing thing about this number is that it is a part of you
>As you can see my hand contains five fingers

>>8597892
the "number" zero is a part of you. as you can see you have zero reason to live

>>8595329
i just write it the old-fashioned way that the greeks did - look for a nice zigzag on xi's wikipedia page

>>8586223
It is immoral to choose a door no matter how many people would die.

>>8588340
http://www.dailymail.co.uk/news/article-2149401/Harvard-apologizes-publishing-alumni-update-Unabomber-Ted-Kaczynski.html

Daily reminder that he's right

>>8596738

>>8588379
anyone got that one where pepe troll wojak with the sierpinski triangle?

>>8598421

>>8597940
This. Utilitarians blown the fuck out.

>>8592670
too bad they aren't countable. Good luck trying to arrange them on the track

>>8598484
thanks senpai

>>8586243
>you draw an epsilon
>you add a caret at the top and one at the bottom

it's not even hard c'mon

>>8599366

>>8599368

>>8599370

>>8599371

>>8587729
>No friends
>Broke
>No accomplishments
>No GF
>No job
25
At least I have my above average IQ though.

Oh my fucking god, /sci/ can we do these threads like weekly

>>8588409
Takes out cardboard and writes -1/12 in huge font to sound cool

>>8599392
>all those things
>he still believes he has non-negligible IQ

>>8591428
Any Captains available

>>8586289
If quantum immortality is real then more people will *experience* being alive if you pull the lever.

>>8587386
That was the most rational thing to do.

>>8588813
New babies are born all the time you retard

>>8597588
continuity is a perfectly valid concept even when considering rational functions.

So the answer is no, it does not depend on that.

>>8595543
the cat-girls make it extra sophisticated!

Does anyone have that photo of a topology textbook with a drawing of a dog? I've been trying to find it for the last few weeks, but I haven't managed.

>>8601015
it's here
>>8599277

>>8597053
>Diameter 2
>Circumference is EXACTLY pi
Very funny anon

>>8599373
0.9999999.... = 1 tho

>>8597053
>I'm talking about the fact that you guys act like irrational numbers are unreachable states
They are. You can't draw an ideal circle or square. It's impossible. Truly irrational numbers only exist in mathematics.

>>8601627
so rationals dont exist either?

you can never get exactly half of something

>>8597053
banach tarski

>>8601642
Probably they don't

>>8601655
wow man I fucking love science
*hits bong*

>>8601667
Well, really. Every set of numbers but N was created by men artificially. I mean, if you hold a rock and you know it used to be 1/3 of something, it's still one rock.

>>8586212
Hmm
I don't understand any of this

>>8601683
And it still is exactly 1/3 on that something

>>8601533
The original meme doesn't have the digits repeating, unlike your post.

>>8601683
I don't think you can claim that Q (at least the nonnegative half of Q) is constructed artificially.

Ratios are a perfectly natural phenomenon.

>>8601812
what about the ratio of the lengths of triangle sides or the length of a circle's perimeter to its radius?

>>8588340
lel

>>8595460
Elaborate, please. What am I reading.

>>8601683
>N wasn't created by man artificially
I wonder how much retards who believe in this

>>8603591
Ted kackijkjdinski's unabomber note

>>8601698
there's nothing to get, it's just not funny (like most of the "memes" in this thread, which are either mere references to topics that the public is unfamiliar with or those beat-to-death "harmonic sum is -1/12 and 1 is not 0.9...")

>>8603591
>>8604020
The last page of a note from Ted to his brother.
I saw a dump of it but didn't save all of the pages.

>>8588428
I get that you're joking, but this is the most common misunderstanding about the nature of superposition there is.

>>8599370
I haven't laughed this hard in a while. Friends in college laughed at me for loving to use lagrangian

>>8596407
This is way too relatable

>>8588094
<iframe width="640" height="360" src="https://www.youtube.com/embed/QCzH42efniU" frameborder="0" allowfullscreen></iframe>

1:18 if you have no patience

>>8586220
top kek

>>8588379
The area is bounded though. The perimeter becomes infinite.

>>8595329
looks like shit fgt

>>8606772
I think the joke is that you can't paint the perimeter piece by piece, but you can by submerging it in paint. I don't know what it has to do with carl sagan though.

>>8587729
I got 0. Why again am I here?

>>8601627
You also can't draw a line of exactly 1.000.. meter. Ya moron.

>>8597952
>Machines came with a promise of freedom but instead they have enslaved us
>Obviously this is the machines' fault, because I don't fucking understand capitalism, alienation and extraction of surplus labor value. I can think of no other alternative.