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/sci/ Science & Math

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Most viewed threads in this category

33 more posts in this thread. [Missing image file: rubiks-cube.jpg]
Kinda curious, how many people here can solve a rubiks cube? I know IQ is not an infallible measure of intelligence but I do believe it can somewhat accurately measure your puzzle solving skills. How high of an IQ do you think is required to solve a rubiks cube? Stories?

college major tier list

13 more posts in this thread. [Missing image file: 1350876980110.jpg]
Top Financial math, accounting, investment banking, actuary studies, mathematics Great Chemical engineering Physics Electrical engineering Computer engineering Computer science Good Mechanical engineering Chemistry Biology Geology Nigga u dumb Any liberal art, fine art, or language Civil engineering
23 more posts in this thread. [Missing image file: 1349724879886.jpg]
Hi sci, i have a problem converting this: Define T : M2x2(F) --> M2x2(F) by T(A)= At. Compute [T]?. the answer is a 4x4 matrix. Now when i plug in the 4 elements of the standard basis i end up with four 2x2 matrices.. How can i convert them into columns?
19 more posts in this thread. [Missing image file: cybermen.jpg]
/sci/, how does the >>>/r9k/ robot work? How does it manage to manipulate a string and compare it to every other entry on that board ever in like, 2 seconds? How does it do that with images, especially?
0 more posts in this thread. [Missing image file: b13381de.gif]
what exactly makes some information non geomtric. i mean if a blue wall breaks the symmetry of the room, surely that wuoldn't be intelligence need to process non geometriclly. perhaps children just cna't be bothered thinking about it seriously enough. iknow many times when i'm given insuffient infromraiotn about the pay off or i'm unusure about the worth of doing something i won't use all my mental faculty and go into zombie moed. it'll look like i'm trying, but that's just social. i tended to do this moer as a kid when there was more bullshit around that i didn't understna.d i'm pretty sure this is natural to some extent
20 more posts in this thread. [Missing image file: img06102011_140309.png]
What is the hardest physics course that you have to take in engineering?
36 more posts in this thread. [Missing image file: Skærmbillede 2012-11-21 kl. 19.10.55.jpg]
Sup /sci/ I usually visit /b/ and /g/ but I really need some help on this one. It's about chi squared compared to r squared. And yes, it's somehow related to homework. Here's the deal. I have 3 data sets containing 4 points with x and y coordinates. I have to figure out which one is a linear growth, exponential growth and a parabole-shaped growth. Since an exponential growth is shown as a straight line in a lin-log graph paper, I figured I could just plot all data sets make a simple regression and conclude that the data set with the highest r squared value would be the exponential growth. Of course I could see that the line fits quite good, but I want something to back up my claim. I use Grapher to plot the data, but I can only make an "interpolation", not a regression. So far it seems like the same, and after some googling that didn't help a whole lot, I decided to go on with the interpolation. Now I have to insert some "start values" to get it working. After a few tries a=1 and b=2 seems to work, but I have no idea HOW and WHY it worked. When trying with the default a=0 and b=1 I get a "interpolation interrupted, reached a singularity". Either way, I continued. End of pt 1 (because of a too long post)
10 more posts in this thread. [Missing image file: Georges Lemaître.jpg]
Do you know who this scientist is?
14 more posts in this thread. [Missing image file: curiosity615.jpg]
>Big News From Mars? Rover Scientists Mum For Now http://www.npr.org/2012/11/20/165513016/big-news-from-mars-rover-scientists-mum-for-now
8 more posts in this thread. [Missing image file: eh sure maybe.jpg]
Will the Standard Model ever truly be challenged again, or do you think we've finally figured out the Universes' game?
13 more posts in this thread. [Missing image file: newt gingrich soon.jpg]
http://www.npr.org/2012/11/20/165513016/big-news-from-mars-rover-scientists-mum-for-now So apparently scientists are excited about some new data they've analyzed from one of Curiosity's instruments, but it'll be weeks until they can officially publish the results. Any guesses as to what they found?
2 more posts in this thread. [Missing image file: text3829.png]
Hello /sci/ I have a little question Not homework, btw. How do I get the angles a b and c in the pic? circle is radius r
7 more posts in this thread. [Missing image file: millmat.jpg]
I'm a cs major right now, and I'm choosing electives for next semester in terms of making the most money after university I was thinking an economics minor does anybody have any better ideas?
18 more posts in this thread. [Missing image file: Autism.jpg]
Okay, /sci/: Why is the autism level in the USA so damn high?
21 more posts in this thread. [Missing image file: george.jpg]
>more than 100%
6 more posts in this thread. [Missing image file: 1336334711031.jpg]
Time for yet another stupid hypothetical theory question. (Which involves time travel) Say there is a random number generator, which can generate any integer between one and a million. Say you press the button, and thirteen comes up. If you were to go back in time and press the button, and pressed it at the same time you did earlier, would thirteen come up?
65 more posts in this thread. [Missing image file: image.jpg]
ITT: we say our favorite equation and others try and guess our majors. I(\nu,T)=\frac{2h\nu^{3}}{c^{2}}\frac{1}{e^{\frac{h\nu}{kT}}-1}
3 more posts in this thread. [Missing image file: snapshot20120522025841.jpg]
hey /sci/ sorry for being a noob, but could anyone explain why is the limit value of f(x)=x^2*e^-x equals to 0? i'm guessing that the e^-x converges faster to 0 than x^2 im just not sure why
35 more posts in this thread. [Missing image file: epicurus-on-god.jpg]
Hey sci, If you had a cure for theism, how quickly do you think we could disperse it into the drinking water of all major population centers?
2 more posts in this thread. [Missing image file: pascal2.jpg]
Hi /sci/, I have to work out the value of n in this: http://www.wolframalpha.com/input/?i=%281-%28%285x%29%2F2%29%29%5En I know that when expanded the x coefficient is -20. I know that I have to use binomial expansion when I try to rearrange it I get n((-1/2)5x)=-20x but I'm not entirely sure if this is correct or where to go from here. Any ideas?






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