Recent content by Jocko Homo

  1. J

    Find all the permutations given some finite characters

    Maybe... Are you sure you can do it yourself? For how long a string have you tried to find all the permutations of? How do you know you've successfully found all permutations? How well do you know how to program? If you don't know how to program sufficiently well then obviously you...
  2. J

    How to prove expontential = O (n)

    It looks like you're on the right track. I don't want to answer your question for you but I'll lay some pretty big hints since being stuck doesn't really help you... k and n0 don't take on any specific values. You just have to show that for any k, there exists an n0 such that your...
  3. J

    Occasional beeping noise coming from computer.

    Could it be http://www.thinkgeek.com/product/8c52/?
  4. J

    How does the computing power of my phone compare to my old desktop?

    Wow, you have a really good memory! ...except you forgot about the hard drive! I can't even remember what was common in 2000. Was it 80 GB? How long ago were 16 GB drives common? Are these prices adjusted for inflation? Where are you getting your information? I hope you did! I certainly...
  5. J

    How does the computing power of my phone compare to my old desktop?

    This question came up in conversation the other day and I was wondering if anyone could quantify this. How far back in time must I go before I find a desktop computer that is only as powerful as my Nexus S smartphone? Would that be a Pentium III, for example? I understand that the answer...
  6. J

    Simple trigonometry / geometry question. Diagram included

    gsal's answer is probably what you really want but, to literally answer your question, what you're looking for is the cosine law...
  7. J

    Logic Gates and CPUs: Basic Design Structure of Computer Processors

    Yes, your "processor is just a collection of" logic gates. Incidentally, so is your RAM... I don't know how much you know about processors but I'll mention, for interest's sake, that its registers are just built-in RAM in the sense that they perform exactly the same function: the temporary...
  8. J

    Logic Gates and CPUs: Basic Design Structure of Computer Processors

    Sure... I don't think this is a good characterization of what's going on in a processor... I think the reverse is more accurate: the sequence of instructions that the processor can perform are implemented as a cascade of millions of logic gates... I'm really not sure what you're trying to...
  9. J

    C/C++ Are there any good sources for learning Java as an experienced C++ programmer?

    I'm an experienced C++ programmer looking to learn Java SE 7. Because of the similarities of the language, you'd think there would be a tutorial out there suited for such people but I'm having trouble finding one. I've looked at a couple of Java tutorials that are tailored to C++ programmers...
  10. J

    Question on the universal correctness of mathematics

    This is a poor characterization of the situation... We're talking about mathematics here. Despite popular belief, mathematics has nothing to do with the "real world..." As Deveno has said, it's a giant "what if" statement... It doesn't matter if you could show that the axiom of choice...
  11. J

    Question on the universal correctness of mathematics

    The emphasis is mine... This is entirely false! Examining examples can help mathematicians gain some intuition over a subject but it can never be used as "verification," ie proof. Consequently, mathematical theories are not "developed much as they are in physics." Maths is not even a...
  12. J

    Is Big Bang True? Physics and SR/GR

    In both cases, the emphasis is mine...
  13. J

    The universe's size : always infinite?

    As far as I know, this understanding is exactly right! However, I would add another interesting note... If the universe were finite in spatial extent, the entire universe really would be "compressed" into a small region of space as you approach t = 0. Your revelation in this thread is that...
  14. J

    What are the mathematical concepts used to describe angles in three dimensions?

    I don't get it. You're an undergrad in physics and you're asking this question? Why don't you already know? It's really no different. When you talk about the angle between things in three dimensions, you can think of them as being on some plane oriented in those three dimensions and then...
  15. J

    Is the Gambler's Fallacy Really a Fallacy?

    If you believe this then please describe for us how much more than 50% will you win? Care to calculate what you think the odds should be?
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