Recent content by mcah5

Thanks for all your replies. Answering the questions in this thread: I don't know what my class standing is. My guess is the average GPA is around 3.5, so I think I'm average gradewise. My decision to attend graduate school was recent. I switched from biology to chemical engineering and...

From what I understand, the most important part of a grad school application is previous research experience. I don't have any, and was wondering what schools I should be applying to. A little more about me: Professors don't know me well so letters of recommendation should be weak GPA =...

Actually, I just re-read the question. It asks that I find the Fourier transform of f, not f itself so I don't need to do this integral :o Now I feel stupid. I'll try that method though, thanks :)

Hello, I'm trying to find a series expression for the triangle waveform through some messy math. I've reduced the problem down to solving the integral: Integrate[ 1/w^2 * (1-Cos[T*w/2]) * Exp[(1-n)*I*t*w ] with respect to w from -Infinity to Infinity T is a constant, I is Sqrt[-1], and n is...

All right! Thanks for both of your help. I actually don't have any more information about the parameters of the project. I'll throw these ideas at the professor and see whether they are within project guidelines. Thanks :)

Ok, thanks!

Hello, I'm somewhat confused about the notation in problem 4c of http://www.its.caltech.edu/~hmabuchi/Ph125a/HW1.pdf In part a, I found the matrix R. I was wondering what was meant by a,b exist in R. My guess is that R in the latter case refers to the set of all real numbers, and that...

Hello, I have to do a project for my political science course. It should be in the area of "design, implementation, and analysis of survey data; design, development, and analysis of voting technology." The professor said that he preferred that the projects that had quantitative data and...

It's time for me to start studying for those dastardly standardized exams and I had a couple of questions. 1) Scoring: Does the GRE take away points for wrong answers? 2) When should I take it: I was told that most students take it April of their junior year and a second time October of...

Ah, I see. Thank you so much for your help.

In my econ homework, I was asked to prove that: A set C is convex iff a C + b C = (a+b) C for all nonnegative scalars a and b. All that I'm given is that the definition of a convex set is, for x,y elements of a convex set C: (1-a) x + a y exists in C, for 0<a<1 My thoughts were to first...

Newtons F = m*a and the approximation F = m*g, so a = g Although I guess if you really want to be anal, the heavier object hits very slightly first because the Earth is accelerating up to the heavier object. So two Earth sized masses would fall toward each other faster than a ping pong ball...

The problem follows: Suppose you have a massless dashpot having two moving parts 1 and 2 that can move relative to one another along the x direction, which is transverse to the string direction z. Friction is provided by a fluid that retards the relative motion of the two moving parts. The...

If you are looking for an easy to understand, free textbook on complex analysis try : http://www.its.caltech.edu/~sean/book.html It has great examples that are worked through.

I think the force method would be easiest. Just show that for small oscillations the restoring force is of the form F = -k * x, where k is some constant. To do this, note that the restoring force is mg*sin theta, then taylor expand sin and drop higher order terms. Then by definition you have...