/sci/ - Science & Math

I wasn't sure about this one...

2

Gotta admit, I thought this one was pretty clever.

I love me some Erdos, has anyone got anything related to him?

(can you even type his name properly on /sci/?)

Mandatory (actually, I should mention, we can avoid xkcd, my friend's seen all of those, though if anyone's unfamiliar, post away - you're missing out if you've not read it).

4 more.

Counting down... I've also got some miscellaneous links like the "Cool Cash" thing in Manchester but I could always do with some more.

/sci/'s favourite.

>>6831220
>Math joke thread?

Here's a pure math joke.

Last one, post away.

>>6831245
wut
why is is it minus?

something I came up with at some point (german)

>>6831248
-You=- (-awesome) = + Awesome, high school shit.

> What is love ? the analytic prolongation of a boner

>>6831244
>but muh 300k starting

>>6831243
>not tau/2

You guys must have a lot of friends.

>>6831241
>2014
>using Lay's Algebra textbook
Stay pleb tier

>>6831226
>bars in this bar graph
everyone but the last one is wrong

>>6832553
>you in charge of reading
It's bars per cm of x-axis. So the further you go towards the origin, the less bars there should be.

>>6832584
nope dont see per anywhere
>making assumptions about the graph

>>6832600
>don't see per
>what is the x-axis
I'll teach you then, this can't be less productive :
you should read "bars in this bar graph as a function of the number of cm of x-axis".
If you fix the length of the x-axis, you have a single corresponding number of bars, which is denoted by the height of the bar.

>>6832609
i could make the x-axis 16 and not include another bar it doesnt say anywhere how the axis are related

>>6832613
or I could care less and let you drown in your autism

>>6831251
>Eichhörnchen
Oooh, that took a few moments.

>>6831224
I don't get it.

>>6832675
Care to explain, cuz I still dont.

>>6831243

Banach-Tarski is an anagram of Banach-Tarski Banach-Tarski.

>>6832613
It does.

>y axis
>bars in this bar graph

>x axis
>cm of the axis

Now pick a point there such as (15,15), then you will find that there are 15 bars up until that point, and there 15 cm between the origin and that point.

Or have you never read a graph?

>>6832751
Care to explain?

>>6832824
How do you multiply exponentials?

>>6832831
What you're saying is <span class="math"> e^1 * e^2 * e^3 *... = e^{1+2+3...} [/spoiler] How does that equal <span class="math"> \frac {1}{e^{\frac{1/12}}[/spoiler]

>>6832846
Goddammit!
How does that equal <span class="math"> \frac{1}{e^{\frac{1}{12}}} [/spoiler]

i did not laugh once

>>6832847
http://en.wikipedia.org/wiki/1_%2B_2_%2B_3_%2B_4_%2B_%E2%8B%AF

>>6831238
Oh god.

>>6832869
Noob, that equals <span class="math"> \frac{-1}{e^{\frac{1}{12}}}[/spoiler]

>>6832880
Are you trolling or do you legitimately not understand it? I can't tell.
Implying that <span class="math">1+2+3+... = \frac{-1}{12}[/spoiler], then
<div class="math">e^{1+2+3+...} = e^{\frac{-1}{12}} = \frac{1}{e^{\frac{1}{12}}} = \frac{1}{\sqrt[12]{e}}</div>

>>6832888
Damn... I'm fucking retarded. I actually wasn't trolling. Whatever.

>>6831251
Explanations, someone?

>>6831238
What's with the subscript 2 before n in the summation?

>>6834117
It is 2n.

>>6834311
Dammit, 4chan can't into Unicode?
2^n

from /pol/

>>6831233
Erdős?

>>6831220
I thought about giving a 'proof' to a question that I don't know that goes something like 'if this weren't the case, the question would be wrong'. Haven't had a good oppertunity yet.

>>6832600
embarrassing

>>6831236
kek

>>6832751
some day this meme will evolve to a somewhat decent question to ask an undergrad

>>6832762
Where doe the B in Benoît B. Mandelbrot stand for?

>>6834581
accurate and informative

Also, live-OC:

A joke without foundation.
What's a joke without foundation?

>>6834615
Should be:

A joke without foundation.
But what's a joke without foundation?

pic related is my fav

>>6831231
I like this one too.

>>6834644

>>6832530
you know what book that is from so yeah you're pleb as well

>>6834651

>>6834659
last one

>>6834669
my math prof explained it a little differently but okay, don't see why that wouldn't work

>>6831220

not math but /sci/ related:

A neutron walks into a bar and asks the bartender how much for a drink. He looks at him and replies, "For you, no charge."

>>6834680

Two atoms are sitting in a bar-
One says to the other, "I think I've lost an electron." The other asks "Are you sure?" to which the first replies "I'm positive."

>>6834684
>>6834680

These are really lame.

>>6832692
Eich- = gauge
Hoernchen = small horn, croissant
Eichhoernchen = squirrel

>>6834685

No, you.

>>6834680

I wish I was a helicase enzyme so I could unzip your jeans.

>>6834659
>>6834669
These two specifically are amazing

>>6831243
An infinite amount of mathematicians walk into a bar. In this bar, a beer costs 3 dollars
The first one asks for a beer. The bartender gives him a beer.
The second one asks for two beers. The bartender gives him two beers
The third one asks for three beers. The bartender gives hime three beers.
Then, before the fourth mathematician has the time to ask for his four beers, the bartender gives them a quarter and says "Now that you paid, you can go on".

>>6835217
Nice, that's an astounding joke.

>>6835217
Top fucking Kek. Nice original one, m8.

>>6834669
>black math professor
That only exists in liberals' dreams.

>>6834659
>woman math professor
>black woman studying physics
Again, only in a liberal's wet dreams.

>>6834669
i actually lold

i feel stupider by the image

>>6835596
>>6835597
>>6835596
black math prof
http://math.unc.edu/people/faculty/idris-assani

black "benjamin pierce fellow" (classified as assistant professor)
http://www.math.harvard.edu/~esole/

woman math prof
http://www.its.caltech.edu/~mantovan/

woman math prof
http://www.ma.utexas.edu/users/gamba/
(several woman assistant/associate profs at ut)

>>6834651
That's actually kind of genius when you think about it. If lots of people suck at stats then the mathematics program will get lots of funding. As less and less people suck at stats the mathematics program will begin to get less and less funding. Eventually the two systems will be in equilibrium where we're not spending too little nor too much on funding for mathematics, rather we're spending exactly the right amount.

>>6835597
Every university I've attended has had about a 50/50 ratio of women/male pure mathematics professors. Of course, when you get into shit-tier degrees like physics or comp-sci that ratio falls to almost all men.

>>6835675
>over ten thousand math professors in US alone
>only finds 2 blacks and 2 women

Way to prove his point dude

>>6835707
Well, logically he disproved the notion that all math professors were white men.

>>6835707
>How do I disprove a statement using universal quantifiers.
It is now obvious you know nothing about mathematics. Enjoy being pleb-tier.

>>6835713
no one said they were all white men. Of course there are asian professors you fool

>>6835722
I've never actually had an asian math professor. I signed up for a class with one, but after two days I couldn't understand him well enough to get through the course, so I switched sections.

I did feel guilty though. He seemed like a cool guy. He claimed that variable were like dogs, so we could write a function as f(dogs).

>>6835596
>>6835597


>>6835701 is correct. Until it was surpassed by bio in the 80's, math has always been the most female-dominated hard science discipline. It's been at more or less parity relative to the male/female mix entering university since the 50's, if I recall correctly. This means there are plenty of qualified female applicants to become professors, so math departments tend to be at or very near gender parity. Contrast that with CS or engineering, where not only are few degrees granted to men, but the ratio was radically lower in prior years, meaning there are few qualified women to become professors.

How Can Math Be Real If Our i's Aren't Real?

>>6835731
I had a fob asian math professor for calc 3 my first semester of college, he was fucking horrible, could barely understand him let alone force myself to pay attention for a boring ass calc lecture, ended up getting a B- partly from that and partly because I never studied in high school and didn't know how yet.

>>6835701
>>6835736
It's not even fucking close to 50%, dude, unless you are at a really shit tier school.

I know your chart says over 40% but that's total bullshit, that is bachelor's degrees, most people with a bachelor's in math do not go on to math grad programs or become a professor, the ratio's way lower for professors. And math people aren't exactly social justice crusaders, they tend not to give a shit about diversity and just legitimately pick the best applicants, there might be a little bit of overrepresentation of woman math professors relative to math PhD's, but it's nowhere near 50/50, probably more like 30/70.

That said there are definitely plenty of math professors, I had one once and there were at least 2 others where I did undergrad, there's a few where I'm currently studying and about 1/4 of the grad program is female, maybe even a little higher counting the chinese kids.

>>6835752
I feel ya on the high school thing. I went to a dirt easy school, one that focused on English, Language and Arts more than STEM. I got my ass kicked for the first few quarters of university. Now I have my shit semi-together

>>6835597
My math professor is a hispanic female who got her PhD at Harvard.

I had an engineering professor who was a black woman.

I've had multiple grad student / post doc TAs who were women minorities in physics / math.

I go to a top-tier school.

Git gud.

No, you <span class="math"> $e^{x^2}$[/spoiler]

>>6835217
Explanation please

>>6835707
>[shifting goalposts intensifies]

>>6835808
Barnett's identity

Why did the computer science major give people presents on Halloween?

Because OCT 31 = DEC 25

>>6836380
It would be better if OCT and DEC were actually used by anyone, ever.

>>6831231

I actually like this one a lot, but I think it's a bit funnier without the header.

>>6835217

I get the -1/12 thing, but why did he give away 6 beers first?

>>6835217
But a quarter is 1/4?

>>6836571
$3 * 1/12

>>6836571
>>6836549
>>6835808
It's not funny if you have to explain it guise

>>6836594
I got it at first sight but was just confused about the quarter thing.

>>6831245
> not using boolean
I = Awesome
You = Not(Awesome)
I And U = 0

>>6834659
Totally have a step in my notes that says (from Mathematica)

>>6834669
Does anyone else pronounce it "Foor-yay"? Like, as if the guy was French?

>>6834680
>>6834684
Wow, thanks! I haven't quite heard these 5,000 times yet.

>>6835750
Underrated.

>>6836626
Born 21 March 1768
Auxerre, Burgundy, Kingdom of France (now in Yonne, France)

>>6836683
Haha! Glad to have pleased you, good sir. Ready for another gem?

Two chemists walk into a bar, one asks for H2O, the other says "I'll take H2O too!". The second one dies.

>>6836732
ITT: the joke is missed.

>>6836770
He also got water then died? It didn't even say he ingested anything

>>6835775
You're really stupid.

Two mathematicians are having a conversation.

Mathematician A: Why did you decide to become a mathematician?

Mathematician B: Because I didn't want to work with numbers.

>>6836596

beers there cost $3

3* -1/12 = -1/4

>>6836770
Two chemists walk into a bar. The bartender asks them for their orders. The first one says: "I'll take some <span class="math">H_2 O[/spoiler]." Then the second one replies: "I'll take some water. What is wrong with you, can't you just talk like a normal person in public?". The first one looks down in anger as his carefully laid out plan to murder his colleague failed.

Two chemists walk into a bar. One asks for <span class="math">H_2 O[/spoiler]. Then the other says "I'll take <span class="math">H_2 O[/spoiler], too!". The bartender gives them both a glass of water because which bar servers hydrogen peroxide?

>>6834669
I'm got

An engineer walks up to the bar and orders a drink. As he waits, the girl beside him starts flirting!

He angrily tells her off and decries that straight girls think they have the right to treat the gay bar as some sort of petting zoo.

>>6838654
A physicist walks into a bar. He orders a nice cold domestic beer. He starts drinking it but drowns in the process because he is mentally retarded.

>>6837018
Underrated, especially the second one

>>6834659
currently have mathematica quoted on 2 physics assignments lol

>>6835750

Okay, that made me giggle like a schoolgirl

>>6835596
he could be indian

why did the function cross the asymptote?

[/spoiler]to get to the other side[/spoiler]
lmao

>>6835775
A man is approached by a strange man on the street. The strange man says that today he'll give him a dollar, and tomorrow he'll give him $2, then 3$ the day after that and so on forever. The first man thinks that this is a great deal and shakes on it. The strange man then steals 8 cents from him and runs away.

Here's a good one- excerpt from a book.
q|madiah and q|mhosaroneshaq|mlegqua--- etc etc the nuhHHYUIIGidty physic-galisigalisigalizig--- .. --_GALUM the q|masosaphatian///.


The above is an example of a solved q|madadrian physics equation which took the q|m themselves (q|mhosaphat specifically and shaq|mua) fifteen trillion earth years to compute. Though we cannot comprehend the physics, whether we know it or not its power drains our life. The obin-shua, who live for 150 million years, after mastering the cuntian physics, some have devoted their lives to the q|madadrian (qQ|||lliHUGGIty) physics. Comprehension by a human (or any lesser mind) takes a large toll on the being's life force. there was a -shua who, using the cuntian physics, calculated his life to seventeen decimal places, in years; 654000000.00324581700039871 was the result. This is of course a much higher average. The q|madadrian physics lowered this to 7000 years only. THat was how long he lived, and devoted ALL of that life to the q|m. We follow his example here. This is of course a textbook on the cuntian physics. It takes 300 years of constant study, on average to truly master the cuntian physics in all of itself due to its system of recursive-realLife_returns which enable us to work with ALL of existence in a small way. It is happy, therefore, that we do not live in one of the periods wherin 100 years is the average human lifespan, as it was in the years -3000 to 6000 of the q|mhosaphat death yearspan system. Let us continue our cuntian studies... Please note from the power of the above q|madadrian example, your life will be drained roughly seven years. There will be no further q|madadrian examples. By the end of this book you will be able to compute your life, but only in the q|madadrian physics can you calculate its toll on your life, but that of the above example has already been calculated by a -shua in previous years, and as I have stated, 7 years will be taken off.

>>6840075

>>6832846
You didn't catch the
> 1+2+3+4+...=-1/12
joke?

A group of famous historical mathematicians are playing hide-and-seek, when Newton draws a 1m x 1m square around himself and proclaims "I found you!".
Pascal didn't think this was fair.

>>6840302
That's actually the best wording I've heard of that joke.

>>6840084

BUT THAT'S WRONG YOU FAGGOT

if you put a liquid into a square based receptacle it will turn into a cuboid, so you'd actually have a certain fraction of a beer root beer.

fucking get it straight you nerds.

>>6835596
>>6835597
>>>/pol/

reported

>>6834669
cont.

>>6840445

>>6840446

>>6840447

>>6831220

More jokes!

>>6840084
>>6840407
dumbass girls tryna make math jokes

>>6831245
oh come on this one really sucks

>>6831251
im german and i dont get it...

>>6836532
leave the 17th century somewhere. otherwise it might be hard to grasp

>>6831233
>le math special snowflake master race xDD

>>6840483
Le physics/engineering mustard-race

>>6831233
>black woman
>white woman
>old woman
The diversity is palpable.

>>6840602
oh god, a picture with three professional women and no men. It must be misogyny!

>>6840612
misoandry, dammit

>>6840614
what's wrong with hating men?

>>6840475
Time period can be inferred by the man's clothes and handwriting.

>>6840602
SMBC is the good kind of SJW comic: one that prominently features diversity without it ever influencing the content.

I'm a /pol/ack, and I'll call SMBC non-degenerate. I wish it wasn't so diverse, but the small annoyance of overrepresenting women/blacks in STEM is acceptable in the face of the large benefit of giving SJWs a role model that doesn't let social agendas pollute good ideas.

>>6840687
I feel this exactly