Recent content by BigDave11

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    Deriving wave equation with single string and small amplitude wave.

    I think it is dy/dt because: KE=∫\frac{1}{2}ρ(\frac{dy}{dt})^{2}dx. and PE =∫\frac{1}{2}ρc^{2}(\frac{dy}{dx})^{2}dx. Any thoughts? P.S. sorry for the delay was finishing my allsky camera report.
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    Deriving wave equation with single string and small amplitude wave.

    I think it is dy/dt because KE=∫\frac{1}{2}ρ(\frac{dy}{dt})^{2}dx. and PE =∫\frac{1}{2}ρc^{2}(\frac{dy}{dx})^{2}dx. Any thoughts? P.S. sorry for the delay was finishing my allsky camera report.
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    Deriving wave equation with single string and small amplitude wave.

    I can see how that will come into it but I realized its the third last line going into the second last line I don't quite understand. Where does the factor of half go? Where does the dy/dx in the left side come from? The right side I understand you just square it out add the d/dt. And I...
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    Deriving wave equation with single string and small amplitude wave.

    Thanks so much, such a simple thing I told you I was rusty. I now fully understand how to derive the wave equation thank you! also I was wondering if you could help me with getting from the second last line to the last line if it makes sense to you in the following image. apologies for my...
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    Deriving wave equation with single string and small amplitude wave.

    1.This equation in the link below refers to the small angle approximation regarding deriving the wave equation from Newtons laws from small amplitude waves in a single string with fixed tension. 2.http://imgur.com/NGSwzcl 3. I'm a bit rusty on the maths and have no idea how these...
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    MATLAB Need help plotting Fourier series in matlab

    yeh it was a simple example used to teach me about Fourier series. I thought would be fun to see how the series works out but I fear I may have done it wrong f(x)=3 ; 0<x<1 =-3 ; -1<x<0 Sorry about the formatting still new to me
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    MATLAB Need help plotting Fourier series in matlab

    Wow just realized the equation must be wrong as it tends to 0 as n tends to infinity which should not happen.
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    MATLAB Need help plotting Fourier series in matlab

    Maybe it is the linespace that is the problem is there a way to evenly space more than 100 points in the domain? edit: no come to think of it I don't think this will help do you know why this doesn't resemble a Fourier series?
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    MATLAB Need help plotting Fourier series in matlab

    Hi all my first post as I need to seek help! I have just learned some simple Fourier series stuff and would like to be able to plot my answers in matlab. Assuming this is correct I was wondering if someone would be able to walk me through plotting this equation in Matlab...
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