Recent content by peppies

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    Can you beat Roulette using maths?

    There are a number of different betting systems that you can use with any type of gambling game: http://www.lolblackjack.com/blackjack/betting-systems/ Although, all of them are futile as I have learned. They only work best with games that pay out even odds (1:1) but the actual odds will be...
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    Betting systems and independence

    There are a few more betting systems here that you might be interested in: http://www.lolblackjack.com/blackjack/betting-systems/ It is true that you could never lose in blackjack or roulette if you had an infinite bankroll with no betting limits (this would certainly be ideal). Each trial is...
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    Gambling and the law of large numbers

    Have you tried out a number of different systems like those described here?: http://www.lolroulette.com/roulette/systems/ None of the systems actually work when you factor in a large number of systems. The edge is 5.26% in American roulette and 2.70% in European roulette (which is a better game...
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    A Few Questions for Twofish-Quant.

    Twofish-Quant, I just happened to read your responses and wanted to ask for some advice. I was actually looking into these kinds of Wall Street jobs and got shot down since essentially all of them require MS and Ph.D and I currently have a BS in Physics and minor in Mathematics. The only...
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    Physics Where to find entry-level jobs? B.S. in Physics

    I have a Bachelor of Science degree in Physics with a minor in Mathematics. I graduated with honors, 3.30 GPA (cum laude) but have no internships and no experience except for undergraduate research and independent study. Where are some good places, other than USAJOBS.gov, where I can find...
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    Quick Uncertainty in an Average Question

    I took two measurements of angles that have the same uncertainty. These two angles are also equal. So I took an average of these angles and it's the same result originally measured, but when I try finding the UNCERTAINTY OF THE AVERAGE, I get 0. I'm guessing this isn't the right thing to put in...
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    Optics - Double Slit Irradiance of Fringes

    Nevermind, I solved it by using the RAD mode on my calculator rather than DEG.
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    Optics - Double Slit Irradiance of Fringes

    [Solved] Optics - Double Slit Irradiance of Fringes Homework Statement A double slit diffraction pattern is formed using mercury green light at 546.1nm. Each slit has a width of 0.100mm (= b), slit separation is 0.400mm (=a). The pattern reveals that the fourth-order interference maxima are...
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    Simple square root addition question

    Actually, all I would just have to do is plug that answer back into the equation and it looks like it is correct. Thanks for the help Doc Al
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    Simple square root addition question

    I was able to get about 498.5 roughly. Is this correct?
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    Simple square root addition question

    Super! It took awhile but at least I got this down pretty good again. I did some searching online to refresh my square root concepts and solve the rest. I solved a problem in the book that I knew the answer to, but the problem above is one that I just made up randomly so I didn't know the...
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    Simple square root addition question

    Thanks Doc Al and arildno for the quick responses. Do you know what the solution is for "pc" in that example above? I am still in the process of trying to solve that one but my skills are a little rusty. So if you square both sides, do you get: 1000^2 = [\sqrt{(pc)^2 + 875000} + \sqrt{(pc)^2...
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    Simple square root addition question

    Doc Al, thanks for the hint! I was able to figure it out now. I do have another similar problem in another course with unequal variables. For instance, I have to calculate the momentum of some subatomic particles and I get an equation like: 1000 =\sqrt{(pc)^2 + 875000} + \sqrt{(pc)^2 +...
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    Simple square root addition question

    I know this must be an easy question, but I can't seem to remember how to do it: \sqrt{z^2+R^2 - 2zR} - \sqrt{z^2+R^2 + 2zR} Can someone go through step by step how to solve this? This isn't a homework question but I've been running into this problem more often in multiple courses. So far...
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    How to Find the Transformation Matrix for a 120-Degree Rotation About (1,1,1)?

    Greetings I am in this course now and have this same problem. I know the rotation matrix is supposed to be a 3x3 one and the formula in the book shows: Rxx Rxy Rxz Ryz Ryy Ryz Rzx Rzy Rzz I don't understand what to do next, what does Rxx and Rxy mean? I was wondering if someone could give an...
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