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/sci/ - Science & Math

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15737633 No.15737633 [Reply] [Original]

So is the Good Will Hunting matrix problem actually difficult or is it bullshit that this stumped MIT mathematicians?

>> No.15737654

I thought the idea wasn’t that it was particularly difficult it’s that an uneducated janitor solved it.

>> No.15737712

>>15737633
https://www.youtube.com/watch?v=WJxBkE9d-TA

>> No.15737717
File: 586 KB, 499x700, lKm1Ap6.png [View same] [iqdb] [saucenao] [google]
15737717

>> No.15737851

>>15737633
My boy's wicked smart!

>> No.15737879

>>15737654
Good point. And no surprise that combinatorics is the great equalizer. You don't need to stack funny word games on top of themselves to solve something. You either get it or you don't.

>> No.15737898

>>15737633
Is there something missing in this screenshot? There is no A, i, or j labeled in the shape shown.

>> No.15738054

>>15737898
Please be joking.

>> No.15738114

>>15738054
I'm not joking but I also never went to college.

>> No.15738130 [DELETED] 

>>/sci/thread/15435584

>> No.15738137

>>15738130
Holy shit, can you believe someone made a similar thread to one from 5 months ago?! THE NERVE!!!

>> No.15738141 [DELETED] 
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15738141

>Holy shit, can you believe someone made a similar thread to one from 5 months ago?! THE NERVE!!!

>> No.15738144

>>15738141
I don't think you understand what I was saying there.

>> No.15738151

>>15737654
The question isn't difficult at all, it's almost trivial. The hard part is knowing the notation and the terminology. So without a formal undergrad level education or having read the right textbooks it's essentially impossible to answer.

>> No.15738160

>>15737633
>>15737654
Yeah this is a standard exercise for like a mid-level combinatorics class. You're just supposed to be impressed that he knows specialized combinatorics techniques. It's the same as when he flexes literary or historical knowledge on people.

>> No.15738268

>>15738160
It's not the same in the movie. He has the books memorized so it's a passive flex. But he's actively trying to solve the math shit.

>> No.15738304
File: 42 KB, 540x262, TIMESAND___Hitler.jpg [View same] [iqdb] [saucenao] [google]
15738304

Finding the adjacency matrix is trivial. The next step is probably trivial if you know how to do it, but I don't. I'd look in Predrag's Chaos book where he has a bunch of similar things set up as Markov chains, which are just graphs with directionality between nodes. The third one is like a QFT propagator on a field defined at a discrete set of points, and it's not hard. I forget the relationship between the generator and the propagator, but it's pretty basic. I think the generator is the J in a the propagator's integral Z=\int e{-i/2 x^2 + Jx}, and if it's not, it's something like that. In fact, the second one can probably be solved with a Feynman diagram-like method. The fourth one is a trivial extension of the third one with i=1 and j=3.

>> No.15738307

>>15737633
the important thing is that you, the average anon, is couldn't solve it (and are gay)

>> No.15738309

>>15738304
It's a triangle with a loop. Ignore the matrix stuff. It's just there to confuse people.

>> No.15738323 [DELETED] 

>muh hollywood goyslop
>muh jewish hollywood goyslop muffuguh

>> No.15739354

>>15738151
>>15738160
I thought the guy in the movie said a group of MIT professors took a year to solve it

>> No.15739358

>>15738304
>The next step is probably trivial if you know how to do it, but I don't.
it's just A^3