Search results

  1. J

    How to prepare for a math quickness/accuracy pre-interviews?

    Hello, I am applying for some jobs that have pre-interview tests. Here is one description: This is for a finance job, and I am an electrical engineering major with a pretty high gpa. So I obviously have a solid math background, but what should I expect from these kinds of tests? How...
  2. J

    Easy Circuit Question

    I dunno... It just seems to me like perhaps a little bit of the current would get through. :smile: I guess if I looked at it as the current taking the path of least resistence, then yeah, I guess it's pretty intuitive. (Although, obviously, such an analogy couldn't extend to resistors in...
  3. J

    Easy Circuit Question

    Is the resistance of this circuit 10 ohms? http://img75.imageshack.us/img75/9229/littlecircuitro8.jpg [Broken] I can't prove anything to myself since the resistors aren't in parallel or series. I do notice that the potential at the top of the right side resistor is the same as at the...
  4. J

    Probability - Independence Question

    I think I just got more confused. :smile: Isn't the intersection of B with not-A the same as not-A? giving the fraction to be simply 1? Obviously I must be missing something, big time.
  5. J

    Probability - Independence Question

    I'm trying to get the idea of independent events well grounded in my mind, but I'm having some difficulty. First of all, what would a venn diagram for independent events look like? I know you have the two events intersecting, and the intersection is equal to the product of the probabilities...
  6. J

    MATLAB Just bought MATLAB

    Yeah, I finally got around to teaching myself how to code LaTex over the last few weeks, and it can't be beat. It's just awesome. I think I will even use it for non-math papers, now that I found a MLA style file. Once you get the hang of it, it's actually easier and much more efficient than...
  7. J

    MATLAB Just bought MATLAB

    Well, MATLAB is explicitly required by my engineering school, so I just went ahead and got it. I'll put off any other purchases and give Maxima a try. Thanks!
  8. J

    LaTeX Best Latex Editor?

    Thanks. Just tried it out and it works great!
  9. J

    MATLAB Just bought MATLAB

    Thanks. Aside from typesetting, what are the differences between MATLAB/Maple/Mathematica? Are they all basically the same thing with different strength/weaknesses? Or are there any major fundamental differences?
  10. J

    MATLAB Just bought MATLAB

    I just bought MATLAB because it is absolutely required at the university I will be attending in the fall. While I've only given MATLAB a quick overview, it seems that it's probably not something I would be able to use for writing papers. It also doesn't look very efficient for quick graphing...
  11. J

    LaTeX Best Latex Editor?

    What's a good freeware latex editor? I've been trying to install LEd, but it's not going smoothly, so I don't want to waste anymore time if it's not worth it. Any suggestions?
  12. J

    What is the difference between

    :rofl: ....... :uhh: ........ :cry:
  13. J

    Schools What do you do in Grad school?

    I just thought of another question... I remember a while back someone told me that you have to learn to read/write a mathematically relevant foreign language (German/Russian/French, any others?) in order to get a PhD in math. Is this true? I'm sort of hoping that it is. I'd really like to...
  14. J

    Schools What do you do in Grad school?

    How about courses on the history of mathematics if you are a math major? (do they even use the term "major" when talking about grad students?) That's something that has always interested me. Would it be easy to take those courses? I obviously have very little knowledge about grad school, so...
  15. J

    Schools What do you do in Grad school?

    Thanks guys. Another thing: Are you expected to get lots of papers published in journals while working on your PhD? Is this phase of the program a solitary one? Is there some sort of arrangment where you discuss your research with supervisors on a regular basis? Or are you just let...
  16. J

    How do you learn( study) ?

    I really like ircdan's advice. That's very similar to the way I've learned to read math.
  17. J

    Schools What do you do in Grad school?

    O.K. This question shows just how ignorant I am about things academic, but what do people working on a PhD do? And how long does it take to get your PhD? I'm mainly interested in knowing about a PhD in mathematics. Here are my questions: 1)Do you take only classes that relate to math...
  18. J

    Schools College: Late Start

    blue, Just start with your math where you feel most comfortable. I started with arithmetic when I was 22 years old, and I just chugged along. Don't ever think you aren't a "math person" either... That's all b.s. American schools screw us over mathematically, and we think we suck at math...
  19. J

    Divergence Problem

    This is exactly what I needed. I've seen that trick a handful of times, but I always forget it when I need it! :biggrin: Thanks Orthodontist. BTW, this reminds me of a side question. I call the above a "trick" because I think of it as multiplying the derivative by 1=dr/dr... But is that...
  20. J

    Divergence Problem

    This problem has me stumped: If r = (x^2 + y^2)^{1/2}, show that div \left( \frac{h(r)}{r^2}(x \vec{i} + y \vec{j}) \right) = \frac{h'(r)}{r} My trouble is with mixing the polar coordinates with the position vector. If I write the above as div \left( \frac{h((x^2 +...
  21. J

    So you want to be an EE

    I'll 5th it, if it makes a difference.
  22. J

    Understanding Divergence Graphically

    Yes, I see what you are saying! Thanks!
  23. J

    Understanding Divergence Graphically

    I'm trying to get a handle on seeing whether a vector field (in the x-y plane for simplicity) has zero divergence at a point or is divergence free altogether. I'm having some trouble with this. The way I am thinking about it is to mentally draw a little box around my point and then see...
  24. J

    Programs Advice on Majoring in Physics

    Everything gets easier with practice. :wink:
  25. J

    Programs Advice on Majoring in Physics

    It's hard to answer this because I have no idea what school you are at, nor what your curriculum is like. So take what follows with a grain of salt. It's mainly problem solving. In the calc based physics offered at my school, the only thing we ever did was solve word problems (some straight...
  26. J

    Dilemma: Engineering vs. Math - Help me Decide!

    Yes, this is what worries me most. For that reason, I don't think I will abandon EE. But I'm starting to think more seriously about a double major: pure math and EE. I'll finish a year late, but that's o.k. with me. That's probably true. But I have been exposed to a lot more than my...
  27. J

    Dilemma: Engineering vs. Math - Help me Decide!

    Thanks, Maxwell. I think I will find EE interesting enough to get through the program. I definitely don't hate it, and it's nice to know that circuits don't stay boring. I also think there's a good chance that I'll love it once I take a couple of good classes. Thanks again!
  28. J

    Dilemma: Engineering vs. Math - Help me Decide!

    Nahhh... Mechanical is even less abstract, as far as I know.
  29. J

    Dilemma: Engineering vs. Math - Help me Decide!

    Maxwell (Very electric name, btw :biggrin:) The only exposure I've had to what EE might be like is my Electricity and Magnetism class. I've taken no actual engineering classes yet. I love Gauss' law, ampere's law, Faraday's law, magnetic fields (particle accelerator problems and stuff)...
Top