Recent content by foges

Hi chiro, I really appreciate the input. Yes I have also heard from many people that the most important thing they learned in university was statistics. I may end up going with Management Science and Engineering, it seems like a good mixture of optimization and stats, and is reasonably geared...

So I decided to my masters in computational science. I chose this because the part of my undergrad that I enjoyed the most was the math/programming/numerical methods. Within Computational Science I will have to specialize and I am really not sure what I want to do, therefore I was hoping to get...

So I need to calculate the square root of the covariance matrix \sqrt{\Sigma_tR\Sigma_t} (the matrix square root, not the element-wise square root). \Sigma_t is a diagonal matrix with the square root of the variance on the diagonal (these values are time dependent) and R is the correlation...

anyone?

So I'm a third year EE student and we have this thing called a "group project", where we work part times in groups of 2-3 students on a topic. Anyways I have been reading up a bit on plasmonics and I find it very interesting, so I was wondering if anyone might have an idea of some sort of...

Anyone else on the non-zero angular velocity?

Just because displacement is zero, does not mean that velocity is zero. If you take a guitar string and excite it to its first harmonic (ie. d=\lambda/2), while swinging back and forth, twice every period the string will have a displacement of zero (relative to a motionless string), but a...

I have tried both the kindle (non-DX) and the iPad over longer period of time. I had no problem reading on either of them, the kindle was slightly more pleasant on the eye, but I got very used to the iPad. The major problem with the kindle is that the screen is way to small to properly read any...

Not that i know much about fluid dynamics, but in assuming that v_a =0 you are also assuming that the amount of water flowing out of the bottom is negligible in comparison to the tank of water. Most of the water at the bottom of the tank in fact has a velocity v_b=0 and then the equation adds...

Thanks for the replies haushofer, yes Newtons bucket (or rather two stones and a string) seems to be exactly in line with my confusion (glad to see i wasn't the only one at odd with this concept, haha). Not quite sure I fully grasp it yet, but I'll read a bit more about it. While on the topic...

So assume you have disk in space with a ball on it, the disk rotates and the ball flies off in a in a spiral (viewed from the disk). Thing is if we are in a space with no other matter, then who is to say what the non-moving frame of reference is. I could therefore say the disk is a my reference...

thanks, will check it out :)

Or can someone just give me the name of the subject? because i can't seem to find anything under infinitesimal calculus..

Hey guys, can anyone recommend me a book on infinitesimal calculus. What i mean by infinitesimal calculus is the derivation of differential equations by looking at infinitesimal changes (dx\,dt, etc...). Examples of this would be the Black-Scholes PDE, Euler-Bernoulli DE, etc.. I'm an EE...

So I'm applying to graduate school and have taken an interest in Photonics, but I'm not really sure of where photonics is really headed, the reason i bring this up is: -When talking to my communication electronics professor he mentioned that photonics was something everyone thought was going...