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ChiefWarBear
[–]roxon8967 points68 points69 points 7 years ago (11 children) | Copy Link
It’s been a long time but when I tried to solve it, I end up with a zero denominator. Does the integral only apply to the function on the top?
[–]PESGamer28 points29 points30 points 7 years ago (9 children) | Copy Link
Yeah probably. If it applied to the denominator too, the S looking thing would've been longer.
[–]_degenerategambler 20 points21 points22 points 7 years ago (8 children) | Copy Link
If you only apply it to the numerator, then you're not going to get a number for the result, you would have an expression left with xs. If you solve the entire thing you get a negative non-integer, so how you get a pin code from that hell if I know.
[–]blanollo10 points11 points12 points 7 years ago (2 children) | Copy Link
I just plugged it into Wolfram Alpha with the integral applying to the whole thing, the result was 2.60349i. Maybe the pin is 2603?
Edit: oops, made a mistake transcribing it. Getting -2.9813 now.
[–]_degenerategambler 8 points9 points10 points 7 years ago (1 child) | Copy Link
That's not what I get, who dun goof'd
https://www.wolframalpha.com/input/?i=integrate+(3x%5E3-x%5E2%2B2x-4)%2F(x%5E2-3x%2B2)%5E(1%2F2)+from+0+to+1
[–]blanollo2 points3 points4 points 7 years ago (0 children) | Copy Link
I made a mistake in my original, your link gets the same I got after fixing it. Looks like you were replying while I was editing :-)
[–]KarosGraveyard7 points8 points9 points 7 years ago* (4 children) | Copy Link
I tried to manually calculate it using integration by substitution (let u = x^2 - 3x + 2, then differentiate it and substitute it into the original equation and integrate that with respect to u and not x) but I didn't get far because the substitution doesn't really fit properly. I'm certain you won't get a very pretty number out of this.
Then again, Wolfram is around for a reason.
Here is a complete calculation with steps if anyone is interested (not my own obviously). It's quite a bit more complicated than even third-year undergraduate math problems.
[–]Machiavellianbegger4 points5 points6 points 7 years ago (3 children) | Copy Link
it's quite a bit more complicated than even third-year undergraduate math problems.
How mgtow youd be when u realize why thats the case
[–]KarosGraveyard2 points3 points4 points 7 years ago (2 children) | Copy Link
I'm not sure I understand what you're saying bro
[–]ValhallaWillCome3 points4 points5 points 7 years ago (1 child) | Copy Link
I'm assuming the equation was made hard/impossible for a reason...
[–]KarosGraveyard1 point2 points3 points 7 years ago (0 children) | Copy Link
Oh yeah, definitely
[–]youwontagreewiththis37 points38 points39 points 7 years ago (4 children) | Copy Link
About three fiddy
[–]DuckieIsMyHero8813 points14 points15 points 7 years ago (3 children) | Copy Link
That's when he realized that his gf was 10 ft tall and was Nessie!
[–]daletski7711 points12 points13 points 7 years ago (2 children) | Copy Link
It was the Gawdamn lach ness monsta!
[–]DuckieIsMyHero888 points9 points10 points 7 years ago (1 child) | Copy Link
Whatchu doin' here, lach nest monsta!!! I already gave you three fiddy!!
[–]ChadwickSlickdick1 point2 points3 points 7 years ago (0 children) | Copy Link
Freedom costs a buck-0-five
[–]_white_r0se_34 points35 points36 points 7 years ago (0 children) | Copy Link
Dumb bimbo on her phone: "Ok Google calculator!!!! I want money nawh!!! 😪😥🤑so sad!!! I want clothess now!!!😞😟gonna take selfie when I cry"
[–]ApertureBear22 points23 points24 points 7 years ago (8 children) | Copy Link
I tried to solve this and then realized I've forgotten how to integrate, so I plugged it into wolfram alpha and it's just infinity at 1 and 0 at 0 so.... the pin is infinity?
[–]rookpook 25 points26 points27 points 7 years ago (7 children) | Copy Link
You have to use L'hopital rule dude
[–]ApertureBear30 points31 points32 points 7 years ago (1 child) | Copy Link
It's been 10 years since I've integrated. Help me out here where's the hospital
[–]Careful_Description2 points3 points4 points 7 years ago (0 children) | Copy Link
It's been a while for me too but I still remember some rules and this questioned had choking on my food.
[–]ApertureBear3 points4 points5 points 7 years ago (0 children) | Copy Link
I looked it up and recall now but man I'd have to work through it to figure it all out. Give me a few hours haha
[–]TheMarvelousSchmuck3 points4 points5 points 7 years ago (0 children) | Copy Link
That's the one rule I hated most of all during my calc classes. I could do the rest okay, but that one stumped me every time.
Of course, I had a guy who could barely speak English teaching the class, so maybe that's partially why I struggled.
[–]The_Bird_King2 points3 points4 points 7 years ago (1 child) | Copy Link
That's for limits
[–]rookpook 0 points1 point2 points 7 years ago (0 children) | Copy Link
L'hopital also applies for integration
[–]Sly21C22 points23 points24 points 7 years ago (0 children) | Copy Link
Problem not solved, she'll ask her simp fuck buddy to solve the equation for her. She'll probably eat his load as a reward....
[–]lurkinatworkin16 points17 points18 points 7 years ago (0 children) | Copy Link
Good thing she probably doesn't know about Wolfram Alpha
[–]IHadStringsNowImFree10 points11 points12 points 7 years ago (0 children) | Copy Link
Here's the solution :
-101*sqrt(2)/8 + 135*acosh(3)/16
Here's how you can find it using sympy (symbolic calculus library in python) :
Python 3.5.2 |Anaconda 2.4.1 (64-bit) IPython 4.0.1 -- An enhanced Interactive Python. In [1]: import sympy ...: import scipy ...: print('sympy: '+sympy.__version__) ...: print('scipy: '+scipy.__version__) ...: ...: from sympy import sqrt, simplify, integrate, Rational ...: from sympy.abc import x, y ...: ...: expr_x = (3*x**3-x**2+2*x-4)/sqrt(x**2-3*x+2) ...: expr_y = simplify( expr_x.subs(x,y+Rational(3,2)) )# variable subsitution ...: ...: integral_y = simplify( integrate(expr_y) ) ...: integral_x = simplify( integral_y.subs(y,x-Rational(3,2)) ) ...: solution = simplify( 0 - integral_x.subs(x,0) ) ...: ...: # solution should be = integral_x.subs(x,1) - integral_x.subs(x,0) ...: # but integral_x is undefined at x=1 with real definitions, complex definitions show a discontinuity at x=1 ...: # function expression converges to 0 however, so real definition can be extended to 0 by continuity ...: ...: print('solution is: {}'.format(solution)) ...: print('floating point value is : {}'.format(solution.evalf())) ...: ...: # Numerical verification ...: ...: import scipy.integrate ...: value = scipy.integrate.quad(lambda x:(3*x**3-x**2+2*x-4)/(x**2-3*x+2)**(1/2), 0, 1) ...: print('numerical approximation is : {}'.format(solution.evalf())) sympy: 0.7.6.1 scipy: 0.16.0 solution is: -101*sqrt(2)/8 + 135*acosh(3)/16 floating point value is : -2.98126694400554 numerical approximation is : -2.98126694400554
[–]Stahlboden11 points12 points13 points 7 years ago (0 children) | Copy Link
"hey Billy, can you help me solving some stupid equation? Thanks a million, you are my best friend, your future girlfriend is sooooo lucky <3<3<3"
[–]BiteMeMods8 points9 points10 points 7 years ago (0 children) | Copy Link
She can take the card and shop online and she wouldn't need the pin. Jokes on that guy.
[–]Onlymgtow885 points6 points7 points 7 years ago (0 children) | Copy Link
What is this impossible alien language that women cannot understand
[–]STea144 points5 points6 points 7 years ago (0 children) | Copy Link
hurts my brain
[–]Fantoche_Dreemurr3 points4 points5 points 7 years ago (0 children) | Copy Link
I don't think the answer translates to a PIN code
[–]Gobc3 points4 points5 points 7 years ago (0 children) | Copy Link
I don't know if it's written this way, but it looks like the integral is on the numerator only. This means denominator cannot be solved. LOL
[–]Spungo1 3 points4 points5 points 7 years ago (0 children) | Copy Link
I imagine the answer is something stupid like 0000
[–]teec134 points5 points6 points 7 years ago (0 children) | Copy Link
Plot twist: the card has been disabled and report as lost
[–]DisappointingSnugg2 points3 points4 points 7 years ago (0 children) | Copy Link
This one I do enjoy
[–]NPC746562 points3 points4 points 7 years ago (0 children) | Copy Link
Epic fail by the dude, with the Visa logo you can also use it as a credit card and if the checker does bother to look at her ID she can just use some bs line like "Oh I grabbed my husbands card by mistake tehe lol"
[–]aguszymite1 point2 points3 points 7 years ago (1 child) | Copy Link
It's a visa debit card though, she wouldn't need a pin to spend his money
[–]KrombopulosPhillip1 point2 points3 points 7 years ago (0 children) | Copy Link
Could drain that card pretty quick with amazon giftcards
no pin required
[–]HeyDontDoxMe1 point2 points3 points 7 years ago (0 children) | Copy Link
Wolfram Alpha that shit up hoe!
[–]coldfusion7180 points1 point2 points 7 years ago (0 children) | Copy Link
The debit card still be used as a credit card.
[–]Gordon-G0 points1 point2 points 7 years ago (0 children) | Copy Link
Well that did it
[–]SuperSaiyanBroly7370 points1 point2 points 7 years ago (0 children) | Copy Link
When blue pill in college, I used to mentally solve integrals while banging babes so that I would last longer. These days I'd rather get done as quickly as possibly.
[–]TGWWHOW0 points1 point2 points 7 years ago (0 children) | Copy Link
plot-twist: there is no money on the card :)
[–]T-R-U-M-P-T-O-W-E-R0 points1 point2 points 7 years ago (0 children) | Copy Link
Use U substitution to solve.
[–]spaceboundmonkeys0 points1 point2 points 7 years ago (0 children) | Copy Link
There was a time where I could just start solving this. LoL I should be ashamed
[–]dtvtb0 points1 point2 points 7 years ago (0 children) | Copy Link
My wife has a "math degree" and couldn't solve it. Fuck did I pay her to go to college for?
[–]salvaje_mgtow0 points1 point2 points 7 years ago (9 children) | Copy Link
I like how all mgtows here are capable of solving this lol drop this in a feminist thread and watch then burn 😂
[–]lucretiuss13 points14 points15 points 7 years ago (8 children) | Copy Link
but... no one has solved it? and many people are trying and unable...
[–]TheMarvelousSchmuck1 point2 points3 points 7 years ago (7 children) | Copy Link
I think it's more along the lines of everyone here can take a decent stab at it while maybe not finding the answer.
[–]lucretiuss1 point2 points3 points 7 years ago (6 children) | Copy Link
But the implication are that women are dumb children who wouldn’t be able to answer because they’re so stupid. A man, of course, could easily solve it.
But none of the men can answer the question. So the whole “joke” falls flat, unless you’re willing to accept the premise that men are kinda stupid and there are probably a lot of women (and men) who could solve this.
[–]TheMarvelousSchmuck0 points1 point2 points 7 years ago (5 children) | Copy Link
Several of the men here have answered the question, so no idea where you get that nonsense from.
[–]lucretiuss0 points1 point2 points 7 years ago (4 children) | Copy Link
Not at the time of my original posting. Who’s answered it correctly, without plugging it into the internet?
[–]IHadStringsNowImFree0 points1 point2 points 7 years ago (3 children) | Copy Link
Why would "plugging it into the internet", by which I assume you mean using a online symbolic calculator, be an invalid or incomplete answer ?
I solved it without the internet strictly speaking, but I did used a symbolic library. Being capable of properly using available tools is a skill, especially if this considerably speeds up your work. There's a reason why programmers joke about their most important skill as "being good at googling errors".
What would you prefer : a plumber who unclog your pipes in 10 min with a plunger, or one who does it by hand after 3 hours ?
[–]lucretiuss0 points1 point2 points 7 years ago (2 children) | Copy Link
So why wouldn’t a woman be able to do the same?
[–]TheMarvelousSchmuck1 point2 points3 points 7 years ago* (0 children) | Copy Link
If you want to get statistically into it, more men are involved in STEM than women are, so there is just a larger pool of men who would look at this problem and either A) would not be intimidated by it and try to solve it, B) try to solve it and succeed at solving it, or C) have knowledge of or have access to the tools to solve it. I explain this rather tangential part because that seems to be what you're looking for, some kind of explanation of the general consensus around here concerning women and math.
No idea where you got this notion that anyone around here thinks no woman alive could solve it, but maybe it would help if you'd stop being literal for five seconds. The original guy only said that a bunch of feminists would shit their pants in rage and confusion. He didn't say there exists nobody with a vagina that can do math.
[–]IHadStringsNowImFree0 points1 point2 points 7 years ago* (0 children) | Copy Link
I work with and know women who are competent in computer science and mathematics, so I know there are women who would be able to do the same. Just not many. On that note, I don't believe many men could do it either.
I agree with what TheMarvelousSchmuck said, I don't think the original "joke" here is that no woman can do this, but that your typical internet feminists are unlikely to solve this, not even with tools. I don't know if it's true, I rarely go to feminists exchange boards so I don't know the population there.
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[–]roxon8967 points68 points69 points (11 children) | Copy Link
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