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/jp/ - Otaku Culture

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4211112 No.4211112 [Reply] [Original]

>suffer from epilepsy
>play Touhou
>LDJFGKLJGLRGLH'FL';FL#3R

>> No.4211123

>>implying an epileptic could risk browsing 4chan
>>implying epileptics can play the vidya

>> No.4211133

Did you get high score?

>> No.4211152

I knew an epileptic kid, all he played was pokemon.

>> No.4211156

>>4211152

Did he watch Pokemon?

Because I have an episode I'd like to recommend to him.

>> No.4211164

>>4211152
How could he stand the battle transition scenes?

>> No.4211166

>>4211123
>implying they couldn't
>implying epilepsy works that way

>> No.4211191

There aren't that many bright flashing things in touhou are there? I thought you need quickly flashing contrasting colors to cause this.

>> No.4211204

>>4211191

Bullet hell would like a word with you, kisama.

>> No.4211205

Sorry KoG, you didn't get 11111. Reported.

>> No.4211225

>>4211205

oh wow, i didn't even see that

>> No.4211229

So, nobody notice that integral is wrong?

>> No.4211295

>>4211229
I guess not

>> No.4211302

>>4211295
missing +C

>> No.4211312

>>4211302
....

>> No.4211342

>>4211302
Idiot.

>> No.4211358

∫cos 2x dx = ½ sin 2x + C

Silly baka.

>> No.4211382

Now a differential equation!

>> No.4211389

>>4211358
∫(cos(2x))dx = ½ sin(2x) + C
Don't forget your parenthesis!

>> No.4211393

Math is for nerdds.

>> No.4211400

>>4211112
>>4211204
>>4211312
>>4211393
samefag

>> No.4211414 [DELETED] 

>>4211382

Find all real-valued solutions f to the equation
(f(x))^2 = ∫(f(x)^2 + f'(x)^2)dx + 1990.

>> No.4211429

>>4211414
But that's an integral equation

>> No.4211433

>>4211358
>>4211382
>>4211389
>>4211414
Fuck what.
What kind of math is this?
Don't hurt me, please.

>> No.4211453

>>4211433
Trigonometry.

>> No.4211454

>>4211382

Find all real-valued solutions f to the equation
(f(x))^2 = ∫(0 to x)(f(t)^2 + f'(t)^2)dt + 1990.

>> No.4211501

I got a baka-level one.
If a>0 prove that ∫[0,a](dy/(a^4-y^4)^½)=(G(1/4)^½)/(4a(2PI)^½).
Where G( ) is the gamma function.

>> No.4211538

>>4211433
It's math for kids, what else?

>> No.4211563

Get the fuck out you nerds. You have to be ^ cool to post on /jp/. If you wear glasses then you shouldn't be allowed here, period.

>> No.4211596

>>4211563
More like if you're not a nerd you shouldn't be allowed in the internet.

>> No.4211727

>>4211501
Well, I solved it, but it's long as fuck

>> No.4211738

>>4211433
This is stuff you should learn at high school. That's just an integration.

>> No.4211756

>>4211738
High school dropout, I guess, so sad

>> No.4211789

OP made me do the math to make sure myself dis nigga got de shit wrong

there's no negative, + c also

>> No.4211842

>>4211789
+ C is for fags if you're not doing differential/integral equations

>> No.4211860

It's funny because she differentiated the outer function.

>> No.4211883

>>4211738
Calculus was for the smart kids only in my school. ;_;

>> No.4211903

>>4211883
Hahaha, moron

>> No.4211913
File: 83 KB, 500x480, baka.png [View same] [iqdb] [saucenao] [google]
4211913

>> No.4211939

/jp/ - Math

>> No.4211967

>>4211883
There is a distinction between what classes you take and how smart you are. Calculus, at least in America, is for the kids that get good grades.
Grades are a vague indicator for intelligence, and there were a lot of people who were otherwise retarded in my Calc I class. Calc II and III, not as much.

>> No.4211987

I took maths in college.
I got an A.
I have no fucking idea how to start with the question in the OP.

I'm beginning to think the UK's maths courses are slightly easier than the US's.

>> No.4212007

>>4211738
How can an adult remember shit from high school?

The people in this thread are either underage or they practice Math every day.

>> No.4212028

>>4211987 I took maths in college.

What, college algebra?

>> No.4212043

>>4212007 How can an adult remember shit from high school?

College

>> No.4212096

>>4212007
Or they're actually working in a field which requires a grasp of fundamental calculus. Imagine that.

>> No.4212111

>>4211501
Well ok.
Let's make t=(y/a)^4, then dt= (4/a)*(y/a)^3 = (4/a)*t^¾ since y=a*t^¼.
Now when y=0, t=0 and when y=a,t=1.
The integral ∫[0,a](dy/(a^4-y^4)^½) can be written as (1/a^2)*∫[0,a](dy/(1-(y/a)^4)^½), and using the t conversion it would be
(1/(4a))*∫[0,1]((t^¾)/(1-t)^½)dt, which is cool since the Beta function is defined as B(a,b)=∫[0,1](t^(a-1)*(1-t)^(b-1))dt = (G(a)*G(b)/G(a+b)). So a=¼, and b=½.
Then (1/(4a))*∫[0,1]((t^¾)/(1-t)^½)dt = (1/(4a))*B(¼,½) = (1/(4a))*(G(¼)*G(½)/G(¾)).
Now G(½)=PI^½, common knowledge. same as G(¾)=(2^½)*PI/G(¼), and that's it.

>> No.4212131

>>4212007
It's math, you're not supposed to forget about it

>> No.4212148
File: 55 KB, 190x209, 1258764525792.png [View same] [iqdb] [saucenao] [google]
4212148

>Failed all my math classes in high school
>Cannot even remember how to long divide

Math is for faggots, you fooooooooools!

>> No.4212170

>>4212043
>College
Ok then, what about an adult with 25+ years.
>>4212096
See>>4212007
>they practice Math every day.
>>4212131
Keep telling yourself that.

>> No.4212202

>>4212170
>Ok then, what about an adult with 25+ years.
Masters degree/PhD.
Also fuck you, this is as basic as the algebra operators

>> No.4212232
File: 79 KB, 702x609, cirno.png [View same] [iqdb] [saucenao] [google]
4212232

>> No.4212262

>>4212202
>Masters degree/PhD.
What if you don't have Masters degree/PhD?
>Also fuck you, this is as basic as the algebra operators
Yeah and it's easily forgettable..

>> No.4212285

>>4212202
I can't do algebra either. All I need for my work is remembering how to use the stuff, not carry it out. Computer handles the rest.

>> No.4212289

>>4212262
>Yeah and it's easily forgettable..
Not at all. But you needn't be shy about admitting that you've never received a proper education.

>> No.4212294

>>4212262
>What if you don't have Masters degree/PhD?
Who the fuck doesn't have a masters by 25?
And how is adding and multiplying forgettable?

>> No.4212297

>>4212289
If you never use something for years, you WILL forget it. This shit isn't like riding a bike.

>> No.4212311

>>4212294
>Who the fuck doesn't have a masters by 25?
Me.
>And how is adding and multiplying forgettable?
Thread unrelated?

>> No.4212314

Wow, I thought you guys were supposed to be smart shut-ins.

>> No.4212325

>>4212314
Shut-ins aren't smart. They either never went to college or dropped out.

>> No.4212335

>>4212314
/b/,/v/,/a/ influence has brought a lot of uneducated scum.

>> No.4212340
File: 68 KB, 702x609, hitler-math.jpg [View same] [iqdb] [saucenao] [google]
4212340

This is the only kind of math I care about.

>> No.4212351

I go to school 2 days a week, and never leave the house on the other days. Does this qualify me for being a shut-in???

>> No.4212355

>>4211112
I don't have epilepsy but I stopped playing MoF because of all the damn flashing lights in it.

>> No.4212356

>>4212297
The integral in question isn't exactly very complicated. ∫cos(x)dx = sin(x)+c is one of the most basic tenets of integration. This is about as plebeian as it gets. It is impossible to forget.

>> No.4212364

>>4212356
Wrong. It is possible. You're delusional if you think otherwise.

>> No.4212372

>>4212356
Translation please?

>> No.4212381

>>4212372
Try taking calculus and you'll see that this very basic.

>> No.4212413

>>4212355
ah, here. This in particular
http://www.youtube.com/watch?v=8VcRwWHgoss#t=2m59s

>> No.4212427

>>4212364
has never taken a calculus class

>>4212356
>expecting /jp/edos to have an education

>> No.4212428

>>4212364
I think you're just stupid

>> No.4212440

>>4212356
Out of curiosity, when was the last time you used or practiced calculus?

>> No.4212459

>>4212440
They're going to say "in this thread, to prove you wrong and show you online"

>> No.4212499

>>4212440
Like 4 months ago

>> No.4212502

There's that stage in Touhou 2 with the flashing background that makes even me feel like I'm getting a seizure.

>> No.4212516

Play something by Jeff Minter

>> No.4212524

Fuck, I completely forgot this thread was about epilepsy

>> No.4212526

>>4212428
>>4212427
You must be very cool at your school,kid.

>> No.4212536

>>4212499
Well there you go. Come back after having not used or even thought about it for five years and see how much you remember about it.

>> No.4212553

>>4212536
I'm a Math/physics major, so I can't do that, I still remember everything about chemistry and biology though

>> No.4212565

>>4212524
It really is the OP's fault. Does anyone one else see the patterns when they close their eyes before falling asleep?

>> No.4212567

>>4212440
>>4212536
Approximately 3 years ago.

I don't know who >>4212499 is, but I am the poster of >>4212356.

>> No.4212579

The correct solution is x = (-arcsin C)/2, where C is any real number.

>> No.4212596

I never practice math, time is for reading.

>> No.4212603

>>4212579
It's not an equation.

>> No.4212615

>>4212596
Math is the most important thing mankind has created

>> No.4212645

>>4212615
Language and literacy are quite a bit more important, bro.

>> No.4212656

>>4212615
Math is discovered, not created.

>> No.4212657

Never use a math related pic in /jp/ if you want to discuss something that isn't math.

>> No.4212670

>>4212656
What.

No.

Fail.

Educate yourself.

(http://en.wikipedia.org/wiki/Philosophy_of_mathematics))

>> No.4212682

>>4212656
>>4212645
Hahaha, no

>> No.4212756

>>4212670
Debatable. Should we agree with plato? What about godel?

As for everyone in this thread thinking calculus is so mysterious, underage banned please.

>> No.4212790

I never took trig despite clearing calculus. Numbers.

>> No.4212846

I too noticed the integral was wrong before the post number. It took me a while to remember when you change the sign. Fun.

>> No.4212871

>>4212148 Cannot even remember how to long divide

I don't know how but I never learned about this in high school. It's not hard but damn was I a deer-in-headlights when my professor mentioned it and I was the only in the class who had never heard of it.

>> No.4213048

Integration is fuck easy to understand though

>> No.4213133

>>4212871
This long division thing is bull.
Googled it and found it to be a stupidly ordered way of dividing things. We learned the exact same thing in junior high in europe.

>> No.4213178

>>4212615
Calculus is completely useless unless you're an engineer, though.

>> No.4213201

>>4213178
orly

>> No.4213222

>>4213178
or a math teacher...

>> No.4213228

>>4213201
yarly

When the fuck would an average person ever use calculus?

>> No.4213235

>>4213178
NO !
It's used to calculate financial data, production volumes for businessmen and whatnot.
I also learned how to make the best sized box thanks to calculus. But I forgot.

>> No.4213242

>>4213228

sounding smart on the internet obviously

>> No.4213334

>>4213228
To feel smart when there are people who don't even know high school math.

>> No.4213391

>>4212670
You know, nothing from that article really contradicts me. Some of it supports me directly. Even if any of it did contradict me, it's a philosophy article, nothing in there is "fact"

>Mathematical realism, like realism in general, holds that mathematical entities exist independently of the human mind. Thus humans do not invent mathematics, but rather discover it, and any other intelligent beings in the universe would presumably do the same. In this point of view, there is really one sort of mathematics that can be discovered: Triangles, for example, are real entities, not the creations of the human mind.

>Many working mathematicians have been mathematical realists; they see themselves as discoverers of naturally occurring objects. Examples include Paul Erdős and Kurt Gödel. Gödel believed in an objective mathematical reality that could be perceived in a manner analogous to sense perception. Certain principles (e.g., for any two objects, there is a collection of objects consisting of precisely those two objects) could be directly seen to be true, but some conjectures, like the continuum hypothesis, might prove undecidable just on the basis of such principles. Gödel suggested that quasi-empirical methodology could be used to provide sufficient evidence to be able to reasonably assume such a conjecture.

>> No.4213654

>>4213178
Or a physicist/mathematician.
Also calculus is fuck easy and useful , goddamn useful.
Now functional/complex analysis, that a bit hard.

>> No.4213673

>>4213391
I think that was his point; it's just philosophy.

>> No.4213675

>>4213228
>average
Normalfag

>> No.4213678

>>4213673
Uh, no, see
>>4212670

He's just another idiot throwing around Wikipedia articles without even reading them.

>>
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