Fucking japs can't do math.

>>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?

>>115279721 Advanced math is all about letters, anon.

>>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.

>>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.

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

>>115280172 Just before serious math starts.

>>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.

>>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.

>>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 sinÎ¸cosÎ¸ = (aÂ²-1)/2 aÂ² = sin2Î¸ + 1 so Î¸ = arctan{1/2 -[âˆš(2-aÂ²) - a]1/2 [âˆš(2-aÂ²)]} + 2Ï€ c, c is some constant.

>>115280485 You mean algebra? Because it makes shit easier.

>>115280172 i only know counting. it like cakewalk

>>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.

>>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?

>>115280575 >question with an infinite number of answers

>>115279667 Yui is retarded, news at 11

>>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.

>>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?

>>115280747 >trusting wife on money matters Anon...

>>115280465 That's not math, idiot. inb4 physics is applied math.

>>115280790 But trigonometry makes Optics super easy.

>>115280172 >mfw I hit a wall at differentials >mfw I suck at math

>>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.

>>115280701 >he took a post from plebbit

>>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.

>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

>>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.

>>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.

>>115281403 I believe you

>>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.

>>115281403 >implying I wouldn't rouse the public to lob your head off

>>115281355 Anyone past first semester should be able to do it.

>>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.

>>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.

>>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.

You can't learn math

>>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 (sinÎ¸ + cosÎ¸) was squared. It's just a simple trigonometry identity. (sinÎ¸ + cosÎ¸)^2 = sin^2Î¸ + 2sinÎ¸cosÎ¸ + cos^2Î¸ (sinÎ¸ + cosÎ¸)^2 = (sin^2Î¸ + cos^2Î¸) + 2sinÎ¸cosÎ¸ (sinÎ¸ + cosÎ¸)^2 = 1 + 2sinÎ¸cosÎ¸ [(sinÎ¸ + cosÎ¸)^2 - 1] / 2 = sinÎ¸cosÎ¸ And, if (sinÎ¸ + cosÎ¸) = a => sinÎ¸cosÎ¸ = [(a^2 - 1] / 2

>>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.

>>115282207 >asks a physics question on a math thread I'll solve that once you solve this, cakeboy.

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 donâ€™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.

>>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.

>>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

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 = -Ä§Â²/2m âˆ‚Â²/âˆ‚xÂ² + V(x, t) [1] and we know the relation, <x|H|Ïˆ> = H<x|Ïˆ> [2] where |Ïˆ> 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], -iÄ§âˆ‚K/âˆ‚t = [-Ä§Â²/2m âˆ‚Â²/âˆ‚xÂ² + V]K. [4] We know that Ïˆ(x,t) =Î´(xâˆ’x0) [5] So, the final wave function, written as a path integral, is then Ïˆ(x,t) = âˆ« [K(x,t;x0,t0)Ïˆ(x0,t0)]dx0[5] Where the integral is over all space. For a free particle, then, this clearly generalizes to âˆ« {Exp[im/2Ä§ Î£Î”t (xj-xj-1/Î”t)Â² ]} [6].

>>115280172 hilbert & banach spaces, probably not gonna get deeper

>>115282766 Let's go with something different then.

>>115282735 >>115282758 Fuck you guys, you are just jealous of my lovely circuits and filters.

>>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

>>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

Is NOT 26

>>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

>>115282929 >Anatomy of the head babby tier shit try a real test

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

>>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/gÂ²/er = nier/gÂ²

>>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.

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

>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

>>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?

>>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

>>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

>>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.

>>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. ???????????Â¿Â¿Â¿Â¿Â¿Â¿Â¿Â¿Â¿Â¿Â¿Â¿Â¿Â¿Â¿

>>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: sinÎ¸ + cosÎ¸ = a sinÂ²Î¸ + 2sinÎ¸cosÎ¸ + cosÂ²Î¸ = aÂ² That way everything is fine. >>115280529 Nobody said to solve it for Î¸.

>>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

>>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?

>>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

>>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

>>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

>>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

>>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/

>>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

>>115292084

>>115292245 >cut off your dick Yahoo Answers always comes through