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/sci/ - Science & Math

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11062122 No.11062122 [Reply] [Original]

>what do you do, anon?
>oh, you're a mathematician? Well then, why don't you tell me about an interesting theorem you know?

>> No.11062124

a^2 + b^2 = c^2

>> No.11062132

>>11062124
>that's not interesting, anon! Everyone learns this at elementary school!

>> No.11062147
File: 449 KB, 1758x1090, TIMESAND___1bnjn5u762gfbv0fjjnd762nny9890rjbty3xf4459gjt5tx3u2445fef2tuukjj24456546327.png [View same] [iqdb] [saucenao] [google]
11062147

>>11062124
this is false for almost all "a," almost all "b," and almost all "c."

>> No.11062150

>>11062147
Lol

>> No.11062153

>>11062147
Wrong, you just have to add a dark number to make the equation work.

>> No.11062154

>>11062122
You cannot comb my ballsack hair in such a way that there is no parting. Feel free to try if you don't believe me.

>> No.11062160

Let X = my dick
Let Y = ur pusy

X + Y = LOVE

>> No.11062174

>>11062122
e^i(pi) + 1 = 0

>> No.11062186

>>11062154
>wow anon, you sound like a real Chad. Can you take me to your apartment?
>>11062160
> I thought you move on from middle school maths when you become a mathematician, anon? Why is your knowledge of mathematics so elementary?
>>11062174
> Anon, they teach everyone this in high-school. Are you sure you're a mathematician?

>> No.11062201

>>11062186
You're a fucking Asian donut in certain mathematical disciplines

>> No.11062216

>>11062201
>what? Why are you swearing at me, anon?

>> No.11062229

>>11062216
Because e^i(pi) + 1 = 0 is the most beautiful equation known to man and you pass it off as nothing you dumb THOT

>> No.11062238

>>11062229
>high school maths
You have to be over the age of 18 to post on 4chan.

>> No.11062243

>>11062122
I’ve got your theorem right here
*unzips*

>> No.11062255

>>11062238
I'm 22 you nigger

>> No.11062257

>>11062255
You're 22 still don't know any maths beyond the high school level? I feel sorry for you.

>> No.11062259

The sum of all prime numbers approaches -1/12

>> No.11062278

>>11062259
>But anon, not all natural numbers are primes!

>> No.11062294
File: 767 KB, 816x3608, negation of reimann.png [View same] [iqdb] [saucenao] [google]
11062294

>>11062122
>check this shit out bitch

>> No.11062304

>>11062278
Stacey, I thought you were smart? You should know that any subsequence of a convergent sequence will both converge to the same value.

>> No.11062474

>>11062186
>my apartment
Absolutely. I'm staying at the Hilbert hotel tonight. It's full, but we can simply make everyone go to the next room.

>> No.11062519
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11062519

>>11062122
I don't know what a mathematical theorem is...

>> No.11062535

>>11062122
Infinity consists purely of subsequent iterations of successful +1 communiques.

If you can't understand this theorem, then you aren't a woman intelligent enough to satisfy my sapiosexuality and I'd rather find the next one that understands what +1 means.

>Mathematical Negger here (PUA term)

>> No.11062563

>>11062186
>>11062238
euler’s formula is not high school math you chodes, reading it on the internet while you were in high school does not count

>> No.11062564

>>11062122
I really like Kakutani's theorem on reflexive spaces. It's beautifully elegant, and it mirrors my soul, just like you.

>> No.11062569

>>11062304
Primes are a subsequence of integers, but the sum of primes is not a subsequence of the sum of all integers.

>> No.11062574
File: 103 KB, 729x720, 1522750860728.jpg [View same] [iqdb] [saucenao] [google]
11062574

>>11062563
>he wasn't taught Euler's formula in the 11th grade
sucks to be american, I guess?

>> No.11062578

>>11062535

You were clearly Posing in that conversation

>> No.11062582

>>11062563
>>11062563
Euler's formula is definitional and is just the analytic extension of the exponential function. So chill man

>> No.11062608

>>11062563
I was literally taught it in school, in the 11th grade. I also live in a shithole eastern european country, so it's not like I was only taught it because I went to an elite institution or anything.

>> No.11062611

>>11062569
.....what the fuck are you talking about. Countable infinity is, in fact, a subsequence of countable infinity.

>> No.11062622

>>11062574
rent free
>>11062608
why exactly were you taught it? did you need it for some algebra class? i didnt see it in a classroom until dif eq

>> No.11062624

>>11062622
We were simply learning the very basics of complex numbers. Part of the curriculum, and Euler's identity is fundamental to them.

>> No.11062628

>>11062624
huh, i was taught complex numbers when i was a freshman i think, so they might have thought it was too difficult

>> No.11062687

>>11062611
You're confusing cardinals and sequences. Pretty weird error to make.
See a simple example:
Let u_n bet the sequel of the nonzero integers up until ten, and then only 0: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 0, 0, 0, 0....
Let v_n be the sequel of prime intergers up until 7, and then only 0: 2, 3, 5, 7, 0, 0, 0....
v_n is a strict subsequence of u_n (for any n, there exist f(n)>=n such that v_n = u_f(n) and such that f is a stricly increasing function of the integers) and they both have the same limit, 0.
But the sum of u_n and sum of v_n are two infinite sums (though with only a finite number of nonzero terms). The sum of u_n has 55 has a limit (it's a stationary sequel). The sum of v_n has 17 as a limit (it's also a stationary sequel).
Another example (with no zero term) is with u_n = 1/n^2 and v_n = 1/(2^n)^2. Both converge to 0, the latter is a subsequence of the former, but the sum of the former is pi^2/6 which is an irrational and above 1.5 while the sum of the latter is 4/3 which is a rational and below 1.4.

>> No.11062695

>>11062622
Euler's formula is one of the most basic formula for complex numbers. It's just a particularly pretty case of De Moivre's formula, which is one of the first thing you learn about the complex numbers. It should be seen in introductory classes in freshman uni at the very latest.

>> No.11062717

>>11062294
>A real number is a cut in a real number line
>A real number is a cut in (a cut in a real number line) line
>A real number is a cut in a cut in a cut in a... line line line line...
Unimpressed.

>> No.11062910

>"you're a mathematician? don't worry anon i'm also unemployed :)"
how do you respond?

>> No.11062924

>>11062122
>what do you do, anon?
>oh, you're a mathematician? Well then, let me just go to the toilet real quick. I'll be back soon. No, please, don't get up.

>> No.11063106

Do you think that's liquor you're drinking?

>> No.11063109

>uh...uh
>Theorem 2?

>> No.11063110

>Sure, but first tell me why you could only afford 3/4 of a shirt

>> No.11063441

>>11062122
>Infinitude of primes
If she knows only a lick of maths, showing her the proof for this might blow her mind

>> No.11063458

>>11062122
KC = KP(RT)^(deltaN)

>> No.11063509

>>11062622
i could see it having utility in a cal 2 class, though i never used it because other methods were easier

>> No.11063603

>>11062122
I tell her the hairy balls theorem.

>> No.11063628
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11063628

>>11062174
>>11062229
>t. pic

>> No.11064039
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11064039

>>11062229
Wrong.

>> No.11064040

While the Cauchy distribution obviously has a center, it does not have a well defined average. Because the standard deviation on the mean of a sample is the same as the standard deviation on the mean of the whole distribution. Unlike a Gaussian distribution, where the spread on the mean of a sample goes down with sample size, taking the mean on a Cauchy sample with size of 1 or 1 billion will not improve your precision. Of course, you can devise estimators that will reliably and quickly converge to the center of the distribution.

>> No.11065088

I still think Cauchy's theorem is incredible, but I haven't figured out any reasonable intuition for it.
What's really nice is that it can produce the most ridiculous formulas, e.g. explicit formula for the value of harmonic functions from the boundary.

>> No.11065095

>>11065088
>Cauchy's theorem
>if you put ridiculously strong restrictions on your functions, you get a nice property
Not exactly what I consider "incredible"

>> No.11065109

>>11062153
HAHAHAHAHAHAHAHAHAHAHAHAAHHAHAHAHAHAHAHAHAHAHAAHHAHA PHYSICISTS BTFO

ANON YOU JUST WON THE INTERNET TODAY XDDDDDDDDDD

>> No.11065111

Generalized Stokes'

now suck my dick

>> No.11065116
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11065116

>>11062229
>Taylor Series
>High school mathematics
brainlet

>> No.11065127

>>11062229
>>11062238
imagine missing the point this hard

>> No.11065128

>>11062608
You have eleven grades? what a waste of time nogger

>> No.11065135

All sequences have a monotonic subsequence which converges if the sequence is bounded.

>> No.11065139

>>11065135
desu that's trivial as fuck

>> No.11065147
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11065147

>>11062122
Ayy, hows 'bout me and my 3 buddies here teach yous 'bout da pigeonhole principle real good like...

>> No.11065196

>>11062122
>why are you drinking gogurt out of a martini glass