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File: yuri math.png (1.46 MB, 1913x1075)
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Fucking japs can't do math.
>>
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>>115279558
>not using Euler's formula

what the fuck do they teach in nip schools
>>
thats not math you fucking idiot. cant you see those are letters
>>
Math is for autists.
>>
>>115279558
I don't understand what's she doing.

What's even the problem?
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>>115279721
Advanced math is all about letters, anon.
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>>115279818
>>115279707
>>115279558
Allow me to interject for a moment. What you are seeing is actually not math, but pseudo+math, also known as pseudomath.
>>
>>115279889
>curve and surface integrals
>advance math
More like babby college freshman math.
>>
>>115279818
I don't know too.

>>115279912
Show me some real math then.
>>
>>115279667
Why does she write her X's like that.
>>
>>115279889
>integrals
>advanced

am i being rused or are you a philology major
>>
>>115279921
That's at least sophomore level.
>>
>>115279961
No it's not, it's at most second semester/trimester level.
>>
>>115279961
What shitty country do you live in
>>
>>115279921
>>115279953
Fuck you then.

http://www.math.uni-bonn.de/people/scholze/PerfectoidSpaces.pdf
>>
>>115279953
>tfw I grew up attending a government-funded school
shit's suffering.
I'm almost 30 and still finds difficult resolving integral problems.
>>
>>115279961
Nigga I had to know that before taking my first Physics class, which was in first year of college.
>>
>>115279992
Second semester maybe, but you definitely don't jump into multiple integrals right away freshman year.
>>
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>>115279558
I forgot about all this stuff long ago, i can't believe they made me learn that shit and i don't even need it in my job.

Still, my math teachers were all bros who i had huge respect for.
>>
>>115279889
>>115279667
>>115279558
Jesus christ, what the fuck is this?
>>
>>115279961
at most they explain you briefly in some courses of the first year for those that aren't fresh out of highschool, but thats it
>>
>>115279921

is it hard to learn?

accidentally skipped the lecture for it during my introductory math course.
>>
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Where are you, guys? I'm on the Triple Integrals.
>>
>>115280147
Easy shit if you have the correct book.
>>
>>115280018
anon if you need help to do your highschool homework tell us already
>>
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>>115280172
Just before serious math starts.
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>>115280172
Fourier Series is as far as I ever got and I learned it in my upper division Classical Dynamics course, don't have to learn farther to do Physics unless it's a specialized problem. Oh wait, we did cover Complex Analysis and Complex functions as well.
>>
>>115280255
I want to imprint the multiplication times table into her womb with my dick.
>>
>>115280277
based STEM bro
>>
>>115280172

Complex Analysis.

Literally a cake walk after Real analysis.
>>
>>115280172
Everything before Serious math, Linear Algebra was the world telling me I'd get my ass kicked If i dared to go any further.
>>
>>115280172
>one time pad decryption
ahaha
>>
>>115279667
This shit doesn't even make any sense whatsoever

x^2 + 13x + 30 = x + x + 13 + x + 30?
2x^2 + 7x 3 = 2 + x + x - 7 + x + 3? Fucking what? What the fuck is this bitch trying to do? What is she supposed to do?
>>
>>115279558
Who cares? Math is not used in 99% of professions. Not even in engineering jobs.
>>
>>115280172
I stopped with my engineering right before seriouse math.
Eigenwerte is math II while partial differential equations is math IV. So why is eigenwerte deeper than PDE?
>>
>/a/ trying to be serious on maths.

Yeah sure.
>>
>>115280402
>learning things because of jobs.
Pleb.
>>
>>115280393
I'm assuming she wrote things with an awful caligraphy in hopes of the teacher mistaking her garbage for the right answer.

I did it too in highschool, one time I had success.
>>
>>115280402
That's silly, math (at some level) is always used in whatever profession.
>>
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>>115280172

>one time pad decryption
>random sequence extrapolation

I'm at the very beginning of Real Analysis and Fourier Analysis. Both are pretty easy so far, but I expect that to pick up.
>>
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>>115280172
>/a/ being somewhat competent
Only four people will solve this, and two used google
>>
>>115280172
The Clifford shit.

man,i did all of this for nothing, it's like philosophy, it's cerebral self-sexing
>>
>>115280434
Why would anybody even be interested in learning that gibberish in the OP's pic?
>>
>>115280172
Just stepping into serious math with Analysis and Abstract Algebra. Cool as hell and hard as hell.
>>
>>115280424
Dunno, Fourier is Math III and it's deeper than both of them.
>>
>>115280393
she got 2/100. so it's supposed to be awful.
>>
>>115280465
Show us the fucking Fig. 30.21

That problem is unsolvable without the figure.
>>
>>115279558
sinθcosθ = (a²-1)/2
a² = sin2θ + 1
so
θ = arctan{1/2 -[√(2-a²) - a]1/2 [√(2-a²)]} + 2π c, c is some constant.
>>
>>115280485
You mean algebra? Because it makes shit easier.
>>
>>115280172
i only know counting. it like cakewalk
>>
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>>115279558
>Fucking japs can't do math.
Its not just the japs.
>>
>>115279667
>x^2=x+x
My sides.
>>
>>115280172
>a normal human doesn't know how to divide

thats straight up bullshit and you know it
>>
>>115280518
What are the tasks anyway? I mean those two look like finding the determinant but it isn't an actual equation.
>>
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>>115280179

Yeah, after reading about it on wiki, I think I did some in physics during kinematic, but that was only either for linear equations or very approximately.
>>
>>115280465
Am I allowed to google the Fig? Or do I have to guess?
>>
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>>115280575
>question with an infinite number of answers
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>>115279667
Yui is retarded, news at 11
>>
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>>115280529
That's some serious alien talk right there
>>
>>115280172
fourier easier than complex analysis?
>>
>>115280589
Yeah, once you start managing a household you have to learn a bunch of basic math.
>>
>>115280172
It's like someone went on Wikipedia and grabbed some terms without really knowing what they mean. The stuff at the bottom like "one-time pad decryption" and "random sequence extrapolation" is trivially impossible, and "poly-dimensional topology" and "irrational pattern functions" aren't even real things.

I'm also not sure why homotopy is apparently simpler than cohomology, or how you can study Riemann surfaces without understanding meromorphic functions. It's pretty clear that whoever made the chart doesn't actually know what these things are.
>>
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>>115280622
>>115280519
This is what I'm talking about they fucking tell you the freaking measurements and you guys can't even draw this shit.
>>
>>115280589
some people adding and subtracting Fractions.
>>
>>115280699
Nah, my wife will take care of this
>>
>>115280465
They teach this to 16-year-olds, was that supposed to be hard?
>>
>sin, cos and tan
whoever made that stuff should be shot. Nothing is worse than trigonometry. Heck they even managed to shoehorn that bullshit in imaginary numbers.
>>
>>115280745
cannot into*
>>
>>115280644
Is this bait?
>>
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>>115280747
>trusting wife on money matters

Anon...
>>
>>115280465
That's not math, idiot.

inb4 physics is applied math.
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>>115280790
But trigonometry makes Optics super easy.
>>
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>>115280172
>mfw I hit a wall at differentials
>mfw I suck at math
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>>115280393
>x^2 + 13x + 30
That looks like some bhaskara equation thing.
>>
>>115280731
I don't remember how to do it because it's been a long time I did physics but magnetic flux was goddamn babby-tier.
>>
>>115280834
Feel free to solve it.
>>
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>>115280701

>he took a post from plebbit
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>>115280065
>mathteacher was a bro that dropped out of highschool and somehow hit the job by going to evening school in combination with being the math tutor while he was employed as janitor at the school
>all he did was tell stories, do a bit of math and then program shit on his computer.
>>
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>STEM majors
>>
>>115280699
my pocket jap will take of it. Also, it is really easy. Just spend less then what you earn and you always be ok.
>>
>>115280880
no one ever liked differentials.
Just deal with it for a while and it'll pass.
>>
>>115280317
How is she supposed to read them from there?
>>
>>115280838
Fucking woman, that the only thing they good for

Well, i already had a back up plan in case something goes wrong
>>
>>115280905
11:20 - (2/3(1hour)) - (1hour)
>>
>>115280918
T and E majors have it nice since they can get jobs easily. It's the S and M majors that are really fucked.
>>
>>115281014
I take that back, finish your ESL course first then solve it.
>>
Math threads on /a/ will never stop being funny for me.
>>
You should be able to solve this.
>>
>>115281014
It was never told what the time was when she rest for 1 hour. It could have been 05:00 AM or 05:00 PM.
>>
>>115280947
She's a lost cause, but at least the child'll know multiplication.
>>
>>115280172
I have a lot of respect for math majors, they're really intelligent and help advance theory which I'm sure will be helpful with computation and advanced AI and whatever.

On the other hand, the stuff will pretty much consume your entire life.
>>
>>115281070
x=y=z=1
>>
>>115280834
no. There are infinite answer fag
>>
>>115281110
well aren't you the brightest bulb in the class anon
>>
>>115280602
It's factoring you pleb.
Do you not remember high school algebra?

x^2 + 13x + 30
(x+3)(x+10)
>>
>>115281040
>tfw chemistry
>tfw I can just sniff some chemical in the lab if shit looks bad
>>
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>>115280912
The best i had:
>had a PhD in math
>had it's own theorem
>wrote a book
>was fit
>did martial arts
>came from Macedonia
>smart as fuck ( he tricked students(including me) numerous time)
>know more about your country than you do
>BTFO of the administration

He was quite strict but you can only respect for someone like that.No homo.
I'm jealous
>>
>>115279818
its trig identies thats like grade 12 pre calc stuff
>>
>>115280172
Right into serious maths (real/complex analysis, a bit of topology). Honestly, that's all you need for graduate level engineering.
>>
>>115280918
>going to college
>not just inheriting money
poor people always makes me laugh
>>
>>115280172
>Strokes Theorem
>>
>>115279558
Looks like they just forgot to put a "^2" around the first expression. The problem is probably something like

"If a = sin(theta) + cos(theta), find sin(theta)cos(theta) in terms of a."
>>
>>115281209
>world economy crashes
>suddenly you're poor
>didn't learn any skill because you didn't even go to tech school
Have fun being even more fucked than people who can somehow make shit to survive.
>>
>>115281186
>im jealous
im really jealous of math guys aswell. They some some level of understanding Ill never reach. I just used tricks and the formulas given to fix shit without understanding why I did what I did was right.

But my teacher just didnt give any fucks. He was like "well I finished maths I could work hard for loads of emone or become a teacher, fuck around with students and have loads of holidays".
>>
>>115281288
>implying richfags dont circlejerk to make money even if the economy goes worse.
>>
>>115280731
>infinite length wire
>calculate flux on a fucking rectangle
That's babbys level anon, you should be able to do this.
>>
>>115281288
>world economy crashes
>implying somehow it'll affect me
keep dreaming poorfags even if the whole worlds economy goes down the select few will always be on top and be safe
>>
>Fucking japs can't do math.
Me neither. :_;
>>
>>115281355
>you should be able to solve this problem even though you have never seen anything like it
>>
>>115280393

And those Japs used to do it SO well. Oh how far they've fallen...

Also:

x^2 +10x -13 =0
2x^2 -3x +19 =0

Using the Quadratic formula, the first one is a messy number, the other's fucked because you can't square-root a negative number.
>>
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>>115281405
You should. Math is the definition of 2D, it's the purest form of love.
>>
>>115281278
She was distracted, but it's there in the board.
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>>115281403
I believe you
>>
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>>115281433
>you can't square-root a negative number.
>>
>>115281433
there is no = in the question, so she just had to write the expressions in a shorter form.

Also the negative discriminant can be solved by just taking sqrt(discriminant)*i
with i being sqrt(-1).
>>
>>115280172
>control theory
Nigga wut? That's not a maths topic on its own, its just a bunch of differential equations, linear algebra, analysis, topology, probability and statistics (for stochastic control stuff) and optimisation.
>>
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>>115281403
>implying I wouldn't rouse the public to lob your head off
>>
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>>115281355
Anyone past first semester should be able to do it.
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>>115281586
>implying the public can touch the elites
your occupy movement was fun though
>>
>>115281166
Well aren't you the next Heisenberg!
>>
>>115281433
>x^2 +10x -13 =0
(x+3)(x+10)

So messy, how horrible.
>>
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>>115281646
>implying that aimless mob would have ever done anything

Give it time my friend, the day will come when you know fear.
>>
>>115281531

The number would still be messy as fuck anyway.

Still; it proves that Japs can't math (like they used to).
>>
>>115281758
You might be a retard.
>>
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>>115280839
Well then
You must be brain damaged if you can't solve this
>>
>>115281758
You dun goof'd.
>>
>>115281808
How the fuck is -5+2*sqrt(3) and -5-2*sqrt(3) anything messy? Fucking burger people.
>>
>>115281947
Shit, that's a - not +, my bad.
>>
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You can't learn math
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>>115280465
>babbys first EE emag problem
>math
>>
>>115281808
its not messy, its complex
>>
>>115282005
I already learnt what I need and I will pick other interesting stuff along the way.
>>
>>115281947
>either can't solve quadratics or can't multiply two negatives
>>
>>115282005
Can I download it?
>>
>>115279558
That would make sense if (sinθ + cosθ) was squared. It's just a simple trigonometry identity.


(sinθ + cosθ)^2 = sin^2θ + 2sinθcosθ + cos^2θ
(sinθ + cosθ)^2 = (sin^2θ + cos^2θ) + 2sinθcosθ
(sinθ + cosθ)^2 = 1 + 2sinθcosθ
[(sinθ + cosθ)^2 - 1] / 2 = sinθcosθ

And, if (sinθ + cosθ) = a => sinθcosθ = [(a^2 - 1] / 2
>>
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You should be able to solve this.
>>
>>115282161
>[(a^2 - 1] / 2
Seems to me japs aren't the only ones
>>
>inb4 someone posts the cirno's coin toss problem and I lose my shit because of the retardation of anons
>>
>>115281808
>Still; it proves that Japs can't math (like they used to).

Or maybe they're trying to make Otaku feel smart by catching all their mistakes. It's an undercover educational plan set in place by the Jap government.
>>
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>>115282207
>asks a physics question on a math thread
I'll solve that once you solve this, cakeboy.
>>
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Imagine there are three identical treasure chests in front of you:

The first box contains two gold coins.

The second box contains two silver coins.

The third box contains one gold coin and one silver coin.

The boxes are shuffled so that you don’t know which is which. You select a random box and, without looking inside, reach in and pull out one of the coins at random. You close the lid after selection, then look at the coin you picked. It is a gold coin.

What is the probability that the other coin in the box is also gold?
>>
>>115282225
Are you bitching about the accidental bracket or is something else the matter?
>>
>>115280172
just done series and now doing multivariable calculus and vectors
>>
>>115282366
It's telling me to use code I don't have.
>>
>>115282381
YES
>>
>>115282353
>counting the number of circles
I'm proud that I can think like a preschooler
>>
>>115280393
She's supposed to factor it:
(x + 10)(x + 3)
>>
>>115282378
2/3.
>>
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>>115280172
>counting
>human
>>
>>115282381
he's probably being autistic and wants to make sure the a^2 is separate from -1 so it's not a^(2-1) or something.
>>
>>115282435
What is it, then?
>>
>>115282431
It's just something for spectral factorisation, you can write your own.
>>
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>>115282531
The obvious one.
>>
>tfw i've already forgotten how to do basic trigonometry
>>
>>115281070
x = 1
y = -1
z = sqrt(1)
>>
>>115280318
>>115280277
WHERE MY STEM BROS AT?
>>
>>115282608
1 isn't = to 3 anon
>>
>>115282544
judging from the multiple choice options, it's most likely D since it's the most similar to the other options
>>
>>115282207
I vomit in my mouth a bit when I see i instead of j for sqrt(-1).
>>
>>115282544
D; 600
>>
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Is /a/ smarter than /v/?
>>
>>115282544
D mudafucka
>>
>>115281769
>implying
when that day comes we just activate the samson option friend
take down everyone with us
>>
>>115282676
why don't you let real mathematicians talk about math anon

go somewhere else to talk about your circuits and electrical currents or whatever you do
>>
>>115282378
1/2.
>>
>>115282692
>get either a goat or a car just by opening a door
i dont get the downside to this
>>
>>115282676
Engineer spotted.
>>
>>115282692
Don't switch
>>
>>115282692
http://en.wikipedia.org/wiki/Monty_Hall_problem

Everyone and their grandmothers know this problem already.
>>
>>115282744
http://en.wikipedia.org/wiki/Bertrand's_box_paradox
>>
>>115282744
Wrong. It's 2/3.
>>
>>115280172
Functions.
>>
>>115281433
>you can't find the square root of a negative number
underage detected
>>
>>115282692
Supposedly your probability of getting a car goes up again if you re-chose.
>1st choice 1/3 chances of getting a car among three doors.
>2nd choice 1/2 chance of picking the car.
The monty hall problem is a paradox because as long as the doors arn't switched it doesn't matter which one you pick.
>>
>>115282207
The Hamiltonian is (in one-dimension, as requested) is

H = -ħ²/2m ∂²/∂x² + V(x, t) [1]

and we know the relation,

<x|H|ψ> = H<x|ψ> [2]

where |ψ> is any state -- sufficient to convey the general idea of the propagator. Anyways, we can define this propagator as

K(x,t;x0,t0) = <x|U(t,t0)|x0> [3]

So we can use Equation [1], and rewrite in the form Equation [2] is in and we find that, for the propagator in Equation [3],

-iħ∂K/∂t = [-ħ²/2m ∂²/∂x² + V]K. [4]

We know that

ψ(x,t) =δ(x−x0) [5]

So, the final wave function, written as a path integral, is then

ψ(x,t) = ∫ [K(x,t;x0,t0)ψ(x0,t0)]dx0[5]

Where the integral is over all space. For a free particle, then, this clearly generalizes to

∫ {Exp[im/2ħ ΣΔt (xj-xj-1/Δt)² ]} [6].
>>
>>115280172

hilbert & banach spaces, probably not gonna get deeper
>>
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>>115282766
Let's go with something different then.
>>
>>115282735
>>115282758
Fuck you guys, you are just jealous of my lovely circuits and filters.
>>
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>>115282207
You should be able to name every bone and bone landmark in this image.
>>
>>115281758
-3 and -10 aren't zero's of that fuction
try again faggot
>>
>>115282692
Come on Yes
>>
I like comfy math threads on /a/.
>>
>>115282913
It seems like you just copied this from the pdf of the book.
>>
>>115280044
They do if you placed into college math
You either don't know what you're talking about or you're in a shit school
>>
>>115282920
turn over the circle card only.
>>
>>115282929
the only thing i can remember is foramen magnum
>>
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>>115282005
Looking at the wiki page for Perfectoid, I don't understand any part of that paragraph
>>
>>115282929
>inferior skull copy
Is this a nigger skull?
>>
>>115281523
>what is absolute value?
>>
>>115283063
Chop your own head off and than look at it upside down.

That's the inferior view.
>>
>>115282544
D! It's D! Yes!

God I'm shit at maths.
>>
>>115283038
why not the red as well

what if that card has a circle and yellow
>>
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Is NOT 26
>>
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>>115282929
You should be able to diffuse the bomb this image.
>>
>>115283083
Damn, I thought you made a /pol/ tier joke with the filename.
>>
>>115283115
E
>>
>>115282692
I don't get it. Why would it matter?
>>
>>115283099
I thought it was color on one side and shape on the other, you can't have both circle and yellow on one side. Since you know the color is red you can say the other side can't be a circle.
>>
>>115283109
26
>>
>>115282692
Always switch. This is basic shit.
>>
>>115282920
You have to turn over all but the yellow one, to make sure there isn't a circle on the other side.

Anything is allowed to be on the other side of the yellow one.
>>
>>115283146
>not checking what bombsite it was planted first
>not throwing a flashbang first
>not checking to see if some motherfucker with a shotgun is waiting to ambush you
Terrorist win
>>
>>115283109
Zero, since obviously you throw the useless packaging away after stocking the machine
>>
>>115283109
Fuck that lame ass problem.

You are stocking a vending machine with 156 spaces,
you have 6 diffrent kinds of soda, but 5 spaces must contain coca-cola.
In how many ways can you stock the soda machine?
>>
>>115280009
what shitty countries do you guys live in?

we did surface and curve integrals in the last year of highschool(assuming highschool go from 14-18).
>>
>>115283115
7355608
>>
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>>115282929
>Anatomy of the head
babby tier shit
try a real test
>>
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I'm too deep in the rabbit hole already in my major. Shit like this makes me want to kill myself sometimes.
>>
>>115283207
>not knowing that T always waits for the fake defuse
CT win
>>
>>115281191
>trig
>grade 12
lel seriously nigger? Trig is like grade 9 AT LATEST
>>
>>115280172
>tfw english
All subjects become optional at 16 (I didn't choose maths, of course), so I only got to trigonometry, which meant I never even learnt what calculus was. I still don't have a clue what they're going on about when they talk about it in films.
>>
>>115283349
trig was grade 11 for me
did calc in grade 12
some people are morons and don't even take trig
>>
>>115282920
square,yellow, and red
circle is for sure yellow
but it never specified that a yellow card would have a circle on the backside
square and red are retard distractions
>>
>>115283387
That's what happens when the American education system decides that you only need Algebra II to graduate from high school.
>>
>>115283308
What is this? Solid state physics?
>>
>>115283308
solid state physics?
really not that hard IMO
>>
>>115283454
To be fair, trig isn't really necessary for most people.
>>
>>115283205
I missed the later paragraph with how there's always a shape on one side and colour on the other.
In that case you only need to flip the circle to make sure the back is yellow, and the red to make sure the back isn't a circle.
Square can have any colour on the back, and yellow can have any shape.
>>
>>115282920
Circle, the ensure the other side is yellow.
Red, to ensure the other side isn't a circle.
Not square, because it can have either colour.
Not yellow, because it can have either shape.

Did I get it?
>>
>>115283308
uwotm8
>>
>>115283463
>>115283488

Not really. Fundamentals of Semiconductors which is a theory class that's supposed to be a graduate class which I'm taking as an undergraduate. Really brutal class but at least I'm graded with the other undergrads.
>>
>>115283574
>Fundamentals of Semiconductors
So solid state physics, then.
>>
>>115283308
Don't kill yourself, then you will be a solid state survivor.
>>
congrats on learning what you were taught -_-
>>
>>115283574
yeah, that is solid state physics
the entire groundwork of semiconductor theory is solid state physics
>>
>>115280575
Let t equal the time it took to get to the park
Let x equal the time that she reached the park
x = 11:20 - 1hour - t - 2/3t
x = 10:20 - t - 2/3t
x = 10:20 - 5/3t
Problem solved. The question asks for the time, but the paper asks for just the formula.
Learn to read idiots.
>>
>>115283511
>>115283561
Correct.

78% of people get this wrong, apparently (sample size ~100k).
>>
heh
>>
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>>115283387
>>115283454
I always wondered how American maths courses in high school work. They always seem to take 'trig' or 'calculus' all seperately, but in England we just did GCSE Maths and then A-Level maths where in the latter you could choose between mechanics or statistics. don't get the American education system at all, what kind of exams do you take in your final year?
>>
>>115280745
How do you simplify fractions with multiple denominators? I forgot
>>
>>115283711
I had statistics my final year because I felt like slacking
>>
Calculus isn't math, it's witchcraft.
>>
>>115283741
ni/g²/er = nier/g²
>>
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>>115283685
>>
>>115283711
It goes like this:
9th grade - Algebra I
10th grade - Geometry
11th grade - Algebra II
12th grade - Trig

Now, this is how I did it due to my school having a quater system rather than semester system:
9th - Algebra I (didn't take math one half of school year because they wanted me to take other classes, assholes)
10th - Fall - Geometry/ Spring - Algebra II
11th - Fall - Trig (would have taken calc if they hadn't fucked me in 9th grade)
12th - Full school year - Calculus
>>
>>115280172
I can do most of the Black ones.
>>
>>115282692
Can someone explain this to me. Apparently, switching is the best option. But why would you have anything other than a 1 in 2 chance? After the door is opened, you have two choices, one with a car and one with a goat. The third door shouldn't matter any more, because you only have two choices now. One door has a goat and one has a car, and you're picking one. What else is there to it?

Is this just mathematicians being dicks?
>>
>>115283813
How about more denominators?
>>
>>115283914
Try drawing out all possible conclusions and you'll see that the chance is 2/3 if you switch.
It's based on the initial assumption.
>>
>>115283914
https://www.youtube.com/watch?v=7u6kFlWZOWg
>>
>>115280044
>but you definitely don't jump into multiple integrals right away freshman year.
I did that in my high school Calc class.
>>
>>115283854
Things have really changed since I was in school:
Geometry
Trig
Calc
AP Calc
>>
>>115283990
That was in 06-10. It could have just been my school district. Who knows.
>>
>>115283938
ab/cd = ad/bc

with this you can simplify any composition of fractions, it's always the same
>>
>>115282692
I don't see how switching should increase any chances, as you do not choose a door - you only have one option to switch to from the one you already chose. This would only make sense if you take back your choice and then choose again between door 1 or 2, both with the same chances, so it wouldn't matter which you pick. So you can as well stick with door number 1, as this has to be an option as well in the new choice.
>>
>>115284026
Also Calc in >>115283854 was AP Calc. I keep forgetting they offer non AP Calc in some schools.
>>
>>115283817
>The next time someone says some bitch made from dust and spare ribs was tricked by the loch ness monster into eating a pomegranate, thus dooming all of humanity, what do you say?
>>
>>115283854
>>115283990
>>115284026
When I was in high school, I did this (we were on a semester system, so you could double up):
9th - Geometry (I did Algebra I in middle school)
10th - Algebra II
11th - Pre-Calc and Calc
12th - Stats
>>
>>115283854
The default in Texas back when I went was only 3 maths. Now it's 4 required.
9) Algebra I (this could be done in 8th grade shifting everything down a year)
10) Geometry
11) Algebra II
12) Pick your destiny AP Stat, Pre Calc, Calc
>>
>>115283854
My school went:

9th (or 8th if you were in the advanced classes): Algerbra
10th (or 9th if advanced): Geometry
11th (or 10th if advanced): Trig
12th Calculus, Statistics, or Personal Finance, or nothing depending on your choice.

If you were advanced and took Calculus in 11th you had the option of taking College level Calculus II at a local college.
>>
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How to teach math in korea.
>>
>>115284050
https://www.youtube.com/watch?v=C4vRTzsv4os
>>
>>115282991
/a/ - Math & Engineering
>>
>>115284164
Based Corea.
>>
>>115283387
My school doesn't even offer Trig, it's just integrated inside of Pre-Calc. Every Math teacher I've had always bitches about how fucked up our math education system is.
>>
>>115279558
can't remember how to do any of that shit.
>>
>>115283454
>implying you need anything but Alg 2 in the real world

If you are going for a career that needs higher math then you take those higher math classes
>>
>>115284164
That's.... quite effective to me., i only they could release doujin like this, i would top all math classes
>>
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>Senior in college
>Biology major
>Getting my ass beat by intro to physics
>Apparently Biology is a useless major and chemistry is what I should've done
>>
In highschool I just had Math, and they put everything into that.

Fucking murrica
>>
>>115284233
My Pre-calc class was pretty much taught with a Trig book. We learned nothing but trig but got credit for Pre-calc. It was funny.
>>
>never paid much attention to maths
>end up doing a degree in Forestry
>feel bad reading this thread
>>
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>>115284076
>>
>>115282378
Not enough information to come to a conclusion
>>
>>115284274
>bio major
>probably has to take the non-calc physics
>getting his ass kicked by it
Go back to high school.
>>
>>115283968
So, would this actually apply in real life or is it just a maths thing?
>>
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>>115284308
>end up doing a degree in Forestry

in what ? is this a thing ?
>>
>>115284373
It's probably a branch of botany.
>>
>>115283914
the presenter always opens a door with a goat
the other door will have either a goat or a car
there's a 1/3 chance that your original choice was correct and the other door is a goat
there's a 2/3 chance that your original choice was wrong and the other door is a car
>>
>>115284299
My Pre-Calc class consisted of 1/3 limits, 1/3 trig, and 1/3 useless shit that's not even used in Calc, despite the course being called fucking Pre-Calc. It's a fucking joke too. Slept every fucking day in that class and got a 96 overall.
>>
>>115283854
So you do no trigonometry until the last year of school? It seems so strange to me since in our school we started (basic) trig in your equivalent of 8th grade. We just do it all mixed and have exams on everything at the end of year 11, year 12 and year 13. Is maths compulsory in america?
>>
>>115284415
Only up to Algebra II. After that you don't have to do any math if you don't want to unless you're going into a major that requires it in college.
>>
>>115283574
wow, i've taken that class

hang in there and hope your professor isn't a dick
>>
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>>115284394
Pretty much. Botany focused on forest ecosystems and anything related to it + forest resources (so 90% learning about wood quality and stuff, you won't believe how related this image is.)
>>
>>115284415
My school requires that you at least take Algebra I, Geometry, Algebra II and AFM (Advanced Functions and Modeling AKA Pre-Calc for retards).
>>
>>115279949
I do the same actually. I do it do differentiate times symbols and x's. also they are aesthetically pleasing
>>
>>115284358
It's a math-semantics thing
It has no real-life application
>>
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>>115283854
>mfw we do all of this at the same time in 3years in my country
>>
>>115284577
>using an x for multiplication symbols
>calling it a "times symbol"
>>
>>115283182
You don't know that the rule is being followed.
>>
>>115284358
it's just a maths thing. you cannot quantum probability the location of a car
>>
>>115284274
Learn some CS and maths, do bioinformatics.
>>
>>115279667
4.1(x^2+13x+30) factored is (x+3)(x+10)

4.2(2x^2+7x+3) factored is (2x+1)(x+3)

>>115281433
Where the hell did you get those equations?
>>
>>115284581
Oh, okay. Then it makes sense to me. I think.
>>
>>115283079
>What are imaginary numbers?
Seriously it's like you guys haven't been through basic algebra. Pretty sure I learned that shit in freshman year of high school.
>>
Please no, not math!
>>
>>115279558
To be honest, trig functions are where I stopped caring about math. Not because it was that hard, but because for me it entered "Holy shit, who gives a fuck" territory and started to seem like pointless bullshit.

I know I'm wrong in this, but it doesn't matter, basic college level math was enough for me and the field didn't interest me regardless. I'd much rather be a NEET anyway.
>>
>>115284308
Agronomy master race reporting in
>>
>>115284402
Switching doesn't change anything because he'll ALWAYS open a goat door.
This means regardless of what you pick, you always have a 50/50 chance for the car.

This is just a case of idiots not paying attention to what's actually happening.
Good job kids.
>>
>>115284639
>>115284581
>Bayesian inference has no real life application
I guess there are no receivers or pattern recognition algorithms in real life, they are just theoretical, imaginary things.
>>
>>115284715
did you have a bad trig teacher or something??
c-calculus is fun anon
>>
>>115281166
if you're in chemistry and you can't find a job, you're doing it wrong.

There's a shit ton in polymers and pharmaceuticals. If you really can't find anything, then just move on to Pharmacy or even Med which you should be very comfortable with if you took a biological specialization (small molecules and proteins)
>>
>>115284776
It's not fun in the slightest, and I study physics.

Please kill me already.
>>
>>115284736
no.

regardless of what you pick, you always have a 1/3 chance of the car.
>>
>>115284562
What sort of stuff is pre-calc, or calculus fo that matter? I did AS Maths in england which had differentiation and integration but they never actually called anything calculus.
>>
>>115283109
If I'm already stocking the machine why would I need more packages?
>>
>>115284358
It does apply in real life.
>>
>>115284853
But Physics is super fun. Until you get that asshole professor who will take half the points off because you were off by .0003 in a problem where anything below .002 will be insignificant to the system at hand.
>>
>>115284736
No, you faggot, that's not how it works. You are not smarter than math.
>>
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>>115279778
underrated post
>>
>>115284169
Huh, don't see it. In game 1 the host acts as in game 3 although he could as well act as in game 2 (opening door 3); an option which would cause another loss for the player; yet this option is not shown.
Will check out the longer explanation later, this surely is supposed to make some sense.
>>
>>115284750
words words words
>>
>>115285000
the world is run by autists though
>>
>>115284076
You're right, because it's in a book
Not any book though, my special book

Reminder that The Bible is fanfiction about the universe
>>
>>115285013
The host always opens a door with a goat. The host cannot open the door you have chosen or the door with the car.
>>
>>115284394
>branch in botany
>forestry
underrated post
>>
>>115284923
Pre-Calc has stuff like basic limits and basic trig. Calc does differentiation, integration, related rates, optimization, etc.
>>
>>115284949
What did you do to piss him off?
>>
>>115285157
I did nothing to piss him off, hell I was one of the quiet ones. He did this to pretty much everyone who took his class, I was even warned before hand but thought it might be a joke.
>>
>>115284750
You are correct
Algorithms are a tool of math
Math is a construct
A construct isn't a real thing, it's an idea
Therefor, while math and algorithms can be "used" they are not "found" in real life.

They are in fact, theoretical, imaginary things.
This doesn't mean they are useless, it just means you don't know what math is.
>>
>>115284308
I'm nearly the same but I'm into baking.
Agriculture always looked fun, somewhat sad that I didn't go into it.
>>
>>115285076
Yes, that's logical. But there is nothing in game 1 preventing the host from opening door 3 instead of door 2. It's an option that would cause another loss for the player if he switches, yet it is not shown. The host is not bound in game 1, he can open either unchosen door.
>>
>>115285000
There is literally nothing wrong with being autistic.
>>
>>115285379
>But there is nothing in game 1 preventing the host from opening door 3 instead of door 2.
That doesn't change anything.
>>
>>115284548
So like, what the fuck can you do with it? Be a fancy Carpenter? Own an Orchard? Appraise old furniture?
>>
>>115285291
>Therefor, while math and algorithms can be "used" they are not "found" in real life

not quite
they are rules and you see their impact and presence everywhere
>>
>>115284641
That's actually exactly what I'm doing, and it looks fun as all hell.
>>
>>115284860
>>115284970
>you have a 1/3 chance
>he always opens a door before your final choice
>this door is always a goat

Regardless of WHEN you choose your door, you always end up with a 50% chance.
ALWAYS.
This means that it's a CONSTANT.
You will ALWAYS end up with a choice between a Good Outcome and a Bad Outcome regardless of your starting position
Therefor, nothing before matters.
Look up Gambler's Fallacy, smart one
>>
I always knew I wasn't the brightest of the bunch, but now I just feel retarded.
>>
>>115285517
see
>>115284169
>>
>>115285446
No, you measure impacts and presence WITH math.
Not the other way around.
>>
>>115285446
maths aren't rules, maths are descriptions and observations of rules
>>
>>115285291
Just because you can't feel them with your senses that doesn't mean they're not there.

Gravity is something that exists and is there, but we can't feel it with our senses.
>>
>>115285517
>Therefor, nothing before matters.
There is always a special kind of retard in these threads who does not understand what Bayes theorem is and thinks this is some sort of a logical problem.
>>
>>115285642
Gravity isn't made of math, idiot
Math can seek to describe gravity, but it creates nothing
>>
>>115285642
Alien detected.
>>
>>115285529
I knew I was never going to be good at math, so you're not alone.
>>
>>115285429
Of course, it adds another "you lose if you switch" option. That's disregarded in the "express explanation" video, maybe it makes more sense in the extend, don't have time to watch that yet. But logically, the host has two options in game 1, yet only one is shown. He could as well open door 3 instead of 2 (same as he does in game 2) and you lose if you switch from your door 1 to door 2. There are two possibilities when you pick the door with the car, yet only one is shown.
>>
>>115285681
What i'm trying to say is that concepts that we can only understand through our mind exist, even if they don't have a "physical" presence.

You can't feel math because it's not a physical concept, but you can see how it exists and affects the world.
>>
>>115285680
>it's not a logical problem, it's math!
>math isn't logical
then it's just as good as The Bible
fucking idiot
>>
>>115285291
Real life application is different than "found in real life". Those two idiots were arguing that the theory behind that problem cannot be applied to real life.
>>
Why does /a/ always have a mathematics thread. Always the same people flaunting their useless mathematics degrees when the only viable job they have is Math teacher.

Although I like the look of Mathem/a/tics
>>
>>115285764
>this is what you understood from my post
Again, special kind of a retard.
>>
>>115285857
>the only viable job they have is Math teacher.
Confirmed for not knowing shit.
>>
>>115285857
>flaunting their useless mathematics
And they only can solve middle school shit
>>
>>115285857
Most of the anons here have either engineering of physics degrees, not maths. Also if you really think that all one can do with a maths degree is teaching, you are an idiot.
>>
>>115284692
why would they teach you that so early on it's a pretty useless knowledge compared to most of what you learn in highschool?
>>
>>115279667
What's that first question asking her to do?
>>
>>115285857
This just in, but not everybody that studies math does it because they want to work with it.
>>
>>115282692
>Two of the doors have goats behind them.

Door 3 only has one goat. Because it is stated that two of the doors have multiple goats I must assume door 3 contains the car and the goat is using some method of hiding it. I pick that one.
>>
>>115285975
well, in most highschools you start to see something of AC at the end, so you must know how to operate with imaginary numbers
>>
>>115285857
I actually work for the NASA, but w/e that's nearly the same as being Math teacher anyways
>>
>>115284402
No.
Look up Gamblers Fallacy.
>>
>>115286079
This has nothing to do with that problem you imbecile.
>>
>>115283914
Imagine playing with your door open after you get it at the start.

If you start with a goat, they've just shown you the other goat so you should definitely switch.
If you've got the car to begin with you don't want to switch.

So I want to switch if I have a goat to start (2/3 chance) and not switch if I have the car (1/3 chance).

If I just decide to switch all the time I get the car two times out of three. Even if I don't get to see what's behind the door.
>>
>>115284233
>It's fucked up
Anyone who says that is a garbage teacher making excuses
>>
>>115281433
> the other's fucked because you can't square-root a negative number.
lol
>>
>>115285758
Math doesn't affect the world
If math affected the world it would need to exist outside of concept, which it doesn't.
Nothing has the property of "2"
>>
>>115286050
sure but freshman year is still a bit early, could just have taught you about it in your senior year when there actually is some chance for you to have use of it.
>>
>This entire thread

Who fucking cares? Do you faggots seriously pause every anime when you see math to check and see if it's right?

Why don't you get a job?
>>
>>115286172
Pick a couple of things and suddenly you have a 2.

???????????¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿
>>
>>115286149
It actually is pretty bad though. We have content in Algebra II that should be taught in Algebra I and vice versa. Plus, we really do need to have Trig as its own course.
>>
Ontario Math system so based, starts with grade 9 math ; academic, applied(for retards), locally developed (for retards) then into grade 10 applied and academic, then into grade 11 college , mixed, university math or workplace, then into grrade 12 uni, college, mixed, workplace and calculus and vectors(one course). Literally if you don't go down academic, academic, uni , uni , calculus, you're probably illiterate in math.
>>
>>115284692
We brushed over that shit because supposedly it was irrelevant to what we needed at the time. That was freshman year.
>>
>>115286237
I'll take 'how to justify a wasted education' for 500, Alec
>>
>>115286247
>Trig as it's own course
I've had it spread out through out my high school math just getting more complex each year. It's fine.
>>
>>115286237
>not seeing it as an inside joke
>>
>>115286129
Look at the rules (CONSTANTS) before starting the game or doing any math you idiot
>3 doors
>2 goats
>1 car
>one goat is always removed before you choose your door

What are you left with before you choose?
>2 doors
>1 goat
>1 car

The first probability has NO EFFECT on other probabilities.
There is an ILLUSION of 1/3 but the fact is that one outcome is ALWAYS removed before your actual choice.
People that think otherwise are overthinking the real issue and real probability of getting the car.
You make TWO decisions. Yes.
But your first decision doesn't matter. Tough shit, get over it.
>>
>>115286243

if 2 is a property, how two-ey is an apple and is it more or less two-ey than an orange?
>>
>>115279558
It should be:
sinθ + cosθ = a
sin²θ + 2sinθcosθ + cos²θ = a²
That way everything is fine.

>>115280529
Nobody said to solve it for θ.
>>
>>115286440

It's not an inside joke.
It's autism and/or OCD.
>>
>>115286425
But we're given it for like 2-3 weeks inside of one course before you're just thrown into Calc. If you're a kid who struggles with math, you're kind of fucked. Not only for that unit, but for every math and physics course afterwards because you pretty much always use Trig.
>>
>>115286243
>I think concepts exist outside the mind
you're an idiot
>>
>>115286468
Just read this and try to understand.
>>
>>115286520
it sure seems annoying to suck at math, doesn't it
>>
>>115286550
>1/2 + 1 + 0 = 3
That's not how real life works, anon
>>
>>115286282
Man, I wish they told me how much that shit fucking mattered in grade 8. I just took applied all the way through except for a grade 11 open level functions class because it was easier.
>>
>go to a job interview
>have to complete an application
>math questions
>1/3 + 3/8
>struggle a bit cause I haven't been to school in about 4 years
>look at this thread

Thank fucking God I didn't go to college/Uni, I would've been eaten alive
>>
>>115286558
>You don't pause anime and correct the math like an obsessive retard? Must be because you suck at math.

Kill yourself.
>>
>>115286550
>including illusory choices in your probability equation
topkek
>>
>>115286503
Just because 2 is an hollistic concept it doesn't mean it doesn't exist.

The world is full of things that can't be explained by the mere observation of it's parts, saying that mathematical concepts don't exist because they're not observable via reductionism is the same as saying that the mind doesn't exist because the brain is electrical impulses, or that life doesn't exist because the composition of living matter is not different than dead one.
>>
>>115285037
No
The world is ran by charismatic alphas who tell the autists what to do
>>
>>115286468
I'm taking Stats right now and we did this exact thing a week ago. >>115286550 is right.
>>
>>115286468
the goat isn't removed; the door is opened.

you say the first decision doesn't matter, but if you stuck with your decision it wouldn't matter what other door was opened.
>>
>>115286627
Are you fucking kidding me? How the hell do you have the mental capacity to breathe, you fucking moron?
1/(1+1/2+0) = 1/(3/2) = 2/3
>>
>>115286627
That's not what it says.
>>
Whenever there's a math thread I can't tell whether everyone is baiting or not. Especially over shit done to death like Monty Hall
>>
>>115286627
1/(1/2+1+0) = 1/1.5 = .6 repeating = 2/3
>>
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>>115280255
>>
>>115282005

You can learn Jap, you can learn math. STFU.
>>
>>115286468

Read
>>115286147
for why you're wrong in plain English.
>>
>>115286704
>it doesn't matter
exactly, anon
you know where the goat is
so realistically, you know not to pick that fucking door
you have a 1/2 chance because you will always know the location of one goat

jesus fucking christ, it's like you people forget that real people are playing this game, not a computer
>>
>>115286644
I had older siblings, I would have taken all of "hardest" levels of math either way, but some of my friends got screwed over as they entered grade 11, they had to take summer school or night school in order to go to uni.
>>
>>115280172
>Algebraic topology
I suppose I'll end at lie algebras once I do some more qcd.
>>
>>115286669
>illusory choices
I am tired of trying to explain Bayes theorem to brain dead liberal arts majors. First of all you faggot, "illusory choices" is a term you pulled out of your ass, it has no place in the context of this problem. Now, first fucking read this:

http://en.wikipedia.org/wiki/Bayes'_theorem

then come back to the solution I posted here
>>115286550
and try to model the problem with actual mathematical notation. If that is too hard for you, you may want to look at this chart.
>>
>>115282692
How do I fuck cars?
>>
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>>115287179
>>
>>115287252
NO ONE WANTED TO KNOW
>>
>>115287275
He wanted to know.
>>
>>115280172
3rd year math student here, I've done everything down to Ring Theory.
I hope to do some Lie Algebra and Representations Theory stuff in my free time.

Oh, and I started with the first (single-variable) Calculus sequence at my uni. It doesn't make a difference when you start so long as you work your as off.
>>
> 1+2+3+4+[...] = -1/12

fuck you math
>>
>>115286805
No, you don't
You have a 1/3 chance of selecting the door with the car first, and a 2/3 chance of selecting a door with a goat
Now another door is opened: If you selected a door with a goat before (2/3 chance), and another door with a goat is opened, the last door left is the one with the car
>>
>>115287163
>stay
>50% chance of winning

>switch
>50% chance of winning

thanks for proving me right moron
>>
>>115287369
i've watched that video but i really doubt something like this can be true
>>
>>115287329
Oh, and I just realized that I did study meromorphic functions in my complex analysis course (which, admittedly, was rather advanced). Who the hell made this chart?
>>
>>115282692
what if the prize is
Goat, Car, House?
>>
>>115287593
Except you are ignoring the fact that you already made a choice before
>>
>>115287593
Are you retarded or you don't see that 1/6 is worse than 1/3?
>>
>>115287704
How can the quizmaster open a door with a goat if you already selected the door with the goat and there is only one?
>>
>>115287275
Someone clearly did.
>>
>>115287528
>>115287725
>>115287740
Your first choice has no effect on the game
A goat will always be shown
Because a goat will always be shown, your final probability for choosing a car is 1/2

The probability of one thing happening doesn't change the probability of another thing happening.
What you're doing is appealing to something called Gamblers Fallacy.
>>
>>115287725
A choice that didn't effect the game
Your chance to get the car is constant, as the only choice that changes anything is the one in which the door you choose is opened.
>>
>>115287772
>>115287772
usually he will open the other prize, and convince the player that there is still another prize
>>
>>115287779
your first choice is a door that cannot be opened by the host, and therefore does not change its probability when the goat is revealed. 1/3 chance of the car before and after the host opens a door
>>
>ITT: people still don't buy the Monty Hall problem
I guess that's okay, considering Erdos didn't buy it until he saw a computer run simulations.
>>
>>115287779
How is gamblers fallacy related to conditioned probabilites.

http://en.wikipedia.org/wiki/Gambler%27s_fallacy
>>
>>115287779
>Your first choice has no effect on the game
But it has
There are 2 doors with goats, so 2 of 3
If you get a door with a goat on the first try (2/3 chance), there is only one door the quizmaster can open with a goat, and the last one is the door with the car

>The probability of one thing happening doesn't change the probability of another thing happening.
Wrong
Your FIRST choice does influence the probability of your SECOND choice being correct
>>
>>115287779
You're twice as likely to have chosen a goat than the car on your first try. If that more likely event does happen, then the host has no choice but to choose the second goat and implicitly reveal that the unchosen door has the car.
>>
>>115288023
I don't see why that matters.
You don't know if you are correct upon making the second choice.
Give me the simulations from >>115287975
and I'll believe you, but the way people are wording it makes no sense to me.

I'm ignorant, but I'll be honest about it. Give me the simulations and I'll change my mind.
>>
How come none of you fucks mentionned that the show in OP's post is not fucking yuri?
>>
>>115288116
They show that you failed before giving you the choice to switch, so you know that you picked a door with a goat.
>>
>>115280172
>no one mentioning lebesgue integral
>>
>>115287779
http://www.statisticalconsultants.co.nz/blog/the-monty-hall-problem.html
>>
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>>115280172
marked every topic that I understand in detail
>>
>>115280424
cuz functional analysis
>>
>>115287593
hat are chances of dinosaur standing near your front door?
>50% yes
>50% no
> Because he is there or he is not
Your logic
>>
>>115288116
But you are more likely to have been wrong than right the first time around. If you were wrong as is twice as likely, then you must switch to win.
>>
>>115288116
Just have a simple computer program emulate the problem, and the result will be 1/3 if you stay, 2/3 if you switch. Here's a way to look at it: There are 3 possible scenarios.
>Case 1:
GGC
>Case 2:
CGG
>Case 3:
GCG
Good? Good. Now suppose (WLOG) that you picked the first door. Then the host opens a door with a goat. You now have:
>Case 1:
GXC
>Case 2:
CXG or CGX
>Case 3:
GCX
If you don't switch, and it's not Case 2, you lose, which is 2/3 of the time. If it is Case 2, you win, which is 1/3 of the time.
You might say that "Oh, there are two options for Case 2," but this is only after the game has begun.
>>
>>115288261
How can you not know matrix if you know vectors?
>>
>>115288116
You don't need a simulation if you can use your brain
Just calculate all the possible outcomes
66.66% chance to be wrong on the first try
33.33% chance to be correct
The showmaster opens another door (not the one you chose, and one with a goat)
Now in the 66.66% chance that you chose a goatdoor on the first try, only the cardoor is left
If you are unlucky (33.33% of the time), you chose the car on the first try, and then switch away from it
>>
>>115288478
I don't know how to do math on proper mathematical matrixes, but I know how to do math on vectors. One of my domain specialties is writing movement solvers for game engines, meaning figuring out how to make objects move when the interact with what. Not quite proper/hard physics, but it's incredibly vector heavy.
>>
>>115288507
>00.01% chance of the coin falling nor head or tails
Gentlemen this is why math is broken gentlemen.
How do you give a 100% equal chance between 3 components?
You can't
>>
>>115288528
What? Physics engine are even more matrix heavy.
n-vectors are just nx1 matrix
>>
>>115288602
Just let the dude bluff.
>>
>>115288261
How can you know integration but not differentiation?
>>
>>115288116
>>
>>115285435
Manage forests.
>>
>>115288737
Because American Education
>>
>>115288261
You realize that linear algebra is vectors and matrices, right?
>>
>>115288600
1/3
>>
>>115288758
Like there's gonna be any left
>>
>>115288602
Right, but I don't actually understand any of this in terms of matrixes. I could probably apply all the stuff I know to matrixes by reading through the wiki page and come out with all the proper understanding of it, but I don't have that.
>>115288784
I don't.
>>115288737
I just forgot to circle that.
>>
>>115288600
It's not 0.001% but 0.000000000000000000000000000000000000000000000000%
>>
>>115288750
And here's the code, in case you were thinking that it is rigged.
>>
Wanna talk about anime?
>>
>>115288787
Fuck off
>>
Problem with the Monty Hall shit explained

>Flip a coin
>blue on one side
>red on the other
1/2 chance red
1/2 chance blue
>Do you want to pick red or switch to blue?
Doesn't matter, you have a 1/2 chance either way to get the color you want

But according to Monty Hall...
>Flip a coin
>blue on one side
>red on the other
Red has a 2/3 chance because we rolled a 3 sided die with two blue sides before we flipped the coin!
News Flash: This shit is absurd

>>115288750
>look at my screenshot like it means something
you're not giving me the simulation, you're just showing me a random screenshot from something
>>
>>115288600
TRUNCATION
>>
>>115288831
>comments with %

You disgust me.
>>
>>115288862
>1/2 chance red
>1/2 chance blue
What if the coin lands on the side.
>>
>>115288819
At this point there is no way you're not just rusing us unless you went to a really shitty education process.
>>
>115288862
>Flip a coin
>blue on one side
>red on the other
That's not at all comparable. You're stupid.
>>
>>115288894
it's a fair coin
>>
>>115288862
Stop pretending to be retarded
>>
>>115288862
You're not flipping a random coin, you're flipping a coin with a complex prior state. It's more like rolling a 3-sided die with a particular (changing) side covered.
>>115288898
I went through a REALLY shitty education process.
Here's one of the movement solver related things that I wrote: https://github.com/wareya/benetnasch2/blob/master/src/physics/characters.cpp#L134
>>
>>115280172
I did the basics of Lie and Clifford Algebras in my degree, but I sure as fuck wouldn't define myself as anything close to "Genius Level"
>>
>>115288842
100%/3
>>
>>115288914
>do you want to pick this door or the other door?
that's two options nigger

>>115288955
>past probabilities affect future probabilities
look guys, it's a retard
>>
>>115288955
>using breaks

yeah, no wonder you went trough a really shitty education process
>>
>>115284853
You study Physics for god's sake, Calculus can be useful in so many ways for you anon, EMBRACE IT
>>
>>115288862
>you're not giving me the simulation, you're just showing me a random screenshot from something
That is the result of the simulation moron, look here:
>>115288831

>>115288884
>comments with %
Wut? What should I have used?
>>
>>115288955
Good job Alexander
>>
>>115288994
>>past probabilities affect future probabilities
>look guys, it's a retard
Muh state machines.
>>115289005
How else do you exit a loop early? Goto?
>>
>>115288994
Look here, this is you>>115288299
>>
>>115288808
Hohoho. Well, forestry is for both economic forests (i.e. tree farms) and for non-economic forests (national parks, wild areas etc etc).

Economic forests are always going to exist, hell it's terrible business practice for them not to be sustainable after all.
Non-economic might decline as far as the limits of national parks (which is pretty huge in the US), which are never going to be downsized, but that's some age away.

I support rewilding. GOTTA GET THAT WILDERNESS BACK, FUCK BITCHES PLANT TREES
>>
>>115289087
hey man you're the one taking the major
I'm just a education majot
>>
>>115288600
You simply ignore the result.

If cat's having blue fur is .0000001 percent of all cats, some kind of anomaly, I can still just write it off as an outlier and consider it unimportant to the modeling of the phenomenon I can observe.

If it becomes a viable variable, then it will become accounted for.
>>
>>115288261
Decent foundation, Anon. Make sure you finish off everything before the "Serious Math" bracket and you'll do well, I can't tell you how many people end up fucked because they haven't mastered the basics and think they can compensate with intellect alone (never works).
>>
>>115289087
Deforestation disgusts me with how short-sighted it is. Keep fighting the good fight anon.
>>
>>115284253
underrated post
>>
>>115288994
>>past probabilities affect future probabilities
Yes, that's exactly what this problem is about
>>
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>>115289165
>Upload current world math to RealLife.quantum
>00.01% chance the word crashes everytime something with a 33.33%/33.33%/33.33% chance crashes
>>
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>>115281433
>can't square root a negative number

Jesus christ anon. Did you not get past fucking algebra 1 or something
>>
>>115280009
One in which they call it math instead of maths evidently.
>>
>>115288261
>I understand p=np
You do know that one hasn't been solved yet, right?
>>
>>115289507
"every topic I understand in detail"
>>
>>115288862
This isn't the problem.

The problem is that the host of the game knows where the car is; you choose a door, and he opens another.

By doing this, we must admit that our first choice of doors is more likely wrong than correct and that whatever door is left over is likely the correct one out of three options: 1/3 odds for your door, 2/3 for the remaining, and 0 chance for the opened door.
>>
>>115289607
Diagram as to why >>115289461
>>
>>115281611
amps law?
>>
>>115288862
>3 doors
>Pick a door at 1/3 right, 2/3 wrong
>You get the option to keep your choice, or switch to the 2/3
>>
>>115280172
p=np
I've worked with it before but not a course specifically in it, proving if p-space is p time implies p=np sucked, and fuck I did that as a junior.
>>
>>115280172
Taking diffeq and multivariable this semester.
>>
>>115283914
It's based on the assumption that the gameshow host is biased and knows which door hides the car. He's not going to open the door to the car, as that would defeat the game, hence he will necessarily open the door to a goat.

Consequently:
You selected car - and switching you get a goat.
You selected goat 1 - and switching you get a car as goat 2 is eliminated.
You selected goat 2 - and switching you get a car as goat 1 is eliminated.

Hence you have a 2/3 chance of winning by switching.
>>
why are /a/ math threads so comfy
>>
Thread cap plz
>>
>>115282920
Turn over the circle and the red faced card.
Square: no rule associated.
Circle: The other side must be yellow -> check.
Yellow: no rule associated.
Red: The other side must not be a circle -> check.
>>
>>115281433
Looks like yo shit just became complex
x1,2=(3+-sqrt(143)*i)/4
>>
There are 500 posts before the bump limit is reached. If the current number of posts have been posted how many posts are left before the thread closes?
>>
>>115282692
>How to derail a thread
>>
Anyone want to make a "bogosort botnet" with me?
>>
>>115283854
Here's how it went down at my old high school. Bracketed ones are for those who qualified to be a year ahead in maths. We also had honours level for the bracket courses (excluding AP courses).
9th - Algebra [Geometr (Honors)]
10th - Geometry [Algebra II]
11th - Algebra II [Pre-Calculus (Honors)]
12th - Pre-Calculus [AP Calculus AB/BC, AP Statistics]

Some people can even go a year ahead still, and after AP Calc in 11th, they simply take AP Statistics and/or Calculus 3 and Linear Algebra independent study courses online via UIUC.
I was in the brackets.
>>
>>115281850
that looks like Stewarts' Calculus
>>
>>115282757
This guy gets it
>>
>>115289925
>how many posts are left before the thread closes?
Yes
>>
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>>115290000
Noice
>>
>>115290035
What a fucking slut.
>>
>>115285743
The video is just explaining the different possible outcomes if do switch.
If you switch, and the car was your first pick then you're fucked, and it doesn't matter which of the two goat doors he opens.

If you've picked one of the goat doors at the star, and then switch, you get the car. You have a 2/3 chance to have picked a goat. Therefore switching gives you a 2/3 chance of winning.
>>
>>115289961
>UIUC
Is this Whitney Young?
This curriculum looks like Whitney Young
>>
>>115290051
i want a slut
>>
>>115290035
What?
>>
>>115290078
Correct metropolitan area, wrong school.
It's actually Lake Park.
>>
>>115287779
okay imagine this
You have ONE HUNDRED doors, 1 door has a car, and the other 99 have goats.
After you make your selection 98 goat doors are opened, and you're asked if you want to switch your original door with the other one that's still closed.

one of the two closed doors has the car
There's a 99% chance that the door you chose has a goat, and that you'll win by switching.
Meanwhile there's a 1% chance you chose the car, and will lose by switching.
>>
>>115290238
Huh.
I went to Lane Tech in Chicago
>>
>>115289081
Wrong, nigger.
I spell check my posts.
>>
>>115290187
I what a slut.
>>
>>115280172
Is this chart legit?
Can I use this chart off 4chan?
>>
>>115280529
nigga what the fuck is a
>>
>>115290310
One of the creators of Big Hero 6 and Ben 10 was a Lake Park alumnus.
>>
>>115290577
>inb4 >>>/co/
>>
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>>115279558
>not defining "a" first
Fuck, I'm lazy as shit when it comes to math and even I know to do this first.
>>
I'm the idiot that didn't understand Monty Hall
After eating while clearing my mind I now understand.
Let me try to explain to others that have the same issue.

On your initial pick:
1/3 chance Car
2/3 chance Goat

>If we always switch;
Car -> A Goat is removed -> Switch to Goat [LOSE]
Goat -> A Goat is removed -> Switch to Car [WIN]
Goat -> A Goat is removed -> Switch to Car [WIN]
Always switching results in a 2/3 chance for a Car

>If we always stay;
Car -> A Goat is removed -> Stay [WIN]
Goat -> A Goat is removed -> Stay [LOSE]
Goat -> A Goat is removed -> Stay [LOSE]
Always staying results in a 2/3 chance at a Goat
Thus, switching is more consistent at winning the car.

However, there is another way to look at it!
By assuming the only choice that matters is the one *directly* involved with winning/losing you will get the following:
>Car -> Switch to Goat [LOSE]
>Car -> Stay [WIN]
>Goat -> Switch to Car [WIN]
>Goat -> Stay [LOSE]
This results in the choosing to switch or stay being pointless, as the probability doesn't change.
While this is true, and logical, it's incomplete.
>>
>>115291617
There is a goddamn simulation you nitwit
The simulation proves what the results are
>>
>>115291683
I know that, fuck-wit
The simulation didn't EXPLAIN things to me
I can't change my belief if I don't UNDERSTAND what I'm changing it too

I admitted I was probably wrong, and found a way to explain it to myself.
You should be happy you fucking prick, most people don't bother to do try after getting mad
>>
>>115280172
I thought hairy balls theorem was a joke
>>
>>115291993
I go to look it up and put in hairy balls syndrome by accident
>>
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>>115292084
>>
>>115292245
>cut off your dick
Yahoo Answers always comes through



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