Recent content by real10

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    Graduate How can I convert discrete sums to integrals using spline interpolation?

    This might be helpful...integrating sums...(technique using falling factorials) http://www.cs.purdue.edu/homes/dgleich/publications/Gleich%202005%20-%20finite%20calculus.pdf
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    Does the reputation of my undergraduate education matter?

    interesting post... As to the original poster, If your State undergrad Eng is good +accredited+locally respected then there is no reason to go elsewhere unless u are getting lot of aid/money etc... As Far as I know state eng schools are usually good in a lot of places (choose the best campus...
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    Understanding Wavelet Transform for Time Series Data Analysis

    MATLAB is your best bet to play around with the wavelet transform (i think they even have a toolbox) -IEEE access and do some digging on the transforms (esp if someone used the output of them as the input to a neural network simulation) and how others have applied it.. I used the wavelet...
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    Should I stick it out in EE with weak-ish math?

    I agree at undergrad level CV it was more linear algebra (transformations) on the other hand in almost all of EE -> statistics/probability is inherent and inescapable due to the ever present noise (real world situations) and modeling anything (data or noise) often requires one to characterize...
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    Should I stick it out in EE with weak-ish math?

    To the original poster, I just took the GRE recently and ended up with 760 on the math section...so yeah don't lose hope if u didnt do as well in high school...people end up doing better later on down the road...(i did better at penn state compared to HS and same...
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    Should I stick it out in EE with weak-ish math?

    try to avoid doing something OVER and Over...focus more on understanding especially for EE & Math...understand and then do some examples for practice... for example...understand what the Fourier transform really is (basically the series version converted to continuous...) though memorizing...
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    Should I stick it out in EE with weak-ish math?

    i got 650 in math sat. 680 on the 2c/physics nothing great...but kept working/studying...ended up with 3.55/4.00 (round to 3.6 yeah at Penn State College EE 4 years) did well math classes undergrad...garbageload of selfstudying via books,internet..to keep up with smarter people around me...ups...
  8. R

    Velocity of a particle large and small times

    yes it is just the amplitude as I said [( 2/5)^2 + (1/5)^2 ] ^1/2 = +-0.45
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    Velocity of a particle large and small times

    no not between -1 and 1 that is for individual terms.You have to combine them into 1 cosine term and the new amplitude is ur answer. use the below formula: A sint + B cost = (A^2+B^2 ) ^(1/2) * Cos(t-arctan(b/A))
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    Finding the value of an integral

    well the original poster wanted to show that it was equal to pi/2 maybe I misunderstood the question... EDIT: Also I(0) can't be used for finding C as u get the integral u want to evaluate...
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    Undergrad Understanding Initial Value Problems in Differential Equations

    The the explanation below might clarify... from http://tutorial.math.lamar.edu/classes/de/definitions.aspx nitial Condition(s) are a condition, or set of conditions, on the solution that will allow us to determine which solution that we are after. Initial conditions (often abbreviated i.c.’s...
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    Complex Numbers: Understanding Multiplication, Angles, and Length

    lol sorry EE undergraduate hehe EDIT: everything changed to i now
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    Complex Numbers: Understanding Multiplication, Angles, and Length

    for second question a quicker way is to convert to the polar form and then u can see the angle of z1/z2 for first question i=e^i*pi/2 (since sine(pi/2)=1) raise this to "i" power u immediately get e^-pi/2.
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    Undergrad Understanding Initial Value Problems in Differential Equations

    because the solution would have to satisfy the differential equations which would contain n derivatives for n the order equation.
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    Finding the value of an integral

    I(x)=\int_0^{+\infty}e^{-xy}\frac{\sin y}{y}dy So I(\infty) = 0 now use this initial condition to find const C and u are done 0 = -arctan(\infty)+C C= \frac{\pi}{2}