Recent content by ephedyn

Ah! You're right! So I have the expected number grow asymptotically in both cases. Makes sense intuitively, since it should become nearly impossible to land the other side on a flip. Thanks! Does the rest of my approach make sense? I'm not too convinced about taking P[H] \times E[N_H] + P[T]...

Homework Statement A biased coin lands heads with probability p and tails with probability 1-p. (1) What is the expected number of flips, after the initial flip, to land a match to the initial flip? (2) What is the expected number of flips, after the initial flip, to land a different side from...

Ah thanks for the quick reply. I'm glad that you pointed out that I can do this nonparametrically. I feel really stupid now. :shy: Is there any drawback for choosing a large number of bins besides computational cost? So besides that I guess the only problem that I need to solve now involves the...

I have a research problem that requires me to find the 95th percentile of a sampling distribution like this: http://www.nuclearphynance.com/User%20Files/9231/1minVARCLOSE.png My first question is, what would be a mathematically sound way to calculate something like this, with several clusters...

Anyone? (:

Homework Statement Write an iterative program to find the largest integer n such that the equation 6a + 9b + 20c = n where a, b, c are nonnegative integers, has no solution.Homework Equations We are given that the set of n in {x, x+1, x+2, ..., x+5} has nonnegative solutions a, b, c to the...

At a non-technical level (no equations), I'd recommend The Arrow Of Time by Highfield and Coveney.

I'll definitely recommend that you stick with MATLAB. It's a useful and employable skill, there's a good selection of toolboxes, excellent user support with detailed documentation, libraries, the File Exchange and various webinars online etc. that you can't get with an alternative. There are...

OK, looks like the majority consensus is to give her some space. I like Moonbear's formulation of the solution the most, I'll give her a few days to reinitiate contact otherwise ask her what's going on and clarify things. Thanks a lot everyone! I know my reply sounds short but I really read each...

Hm I kinda like that idea except I don't want to be giving her more stress. Should I wait for her next move to see if I'm overspeculating OR if she's in a better state to talk about something like this?

Problem statement: So, my girlfriend's coming back after winter break and she texted me all of a sudden last night to say, "Can you not stay over until I'm ready? I'm kind of stressed for no reason and need a break." I don't know if it's bad phrasing on her part, but "need a break" sounds...

Sorry to revive a dead thread, but I'm almost in the same situation. How should I introduce my girlfriend's 8 year old brother to physics and math in general? He's quite bright from what I've heard and doesn't mind reading a book 300-400 pages long, but I don't want him to learn math/science...

Homework Statement Construct the Cayley table for the group of points on the elliptic curve y^2=x^3+x+4 over the field F7 of integers modulo seven. The Attempt at a Solution So I'm familiar with the constructing a Cayley table, but I've not encountered the group of points on the elliptic...

Some background first: I'm a rising sophomore and I recently got an offer to write code and carry out financial research on futures trading for a hedge fund manager, at the starting salary of a college graduate-analyst. We're close friends, so on top of that, we threw around the idea of starting...

:/ It's a tough choice. Any other thoughts on this?