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Hi;
That is what you are supposed to get. When Mathematica does not understand your input it usually just spits the command right back at ya.
Which I still don't know if it is what I want because I don't really know what syntax Mathematica is expecting from me... :-)
That is what the help is their for. The help is your friend, use it. You must consult it liberally until you know the syntax. Take the tour first. Mathematica is like a stradiverius, you don't learn to play it quickly. Not even if you are a genius and can speak 10 programming languages. Learning times with continuous use vary from 1 month to...
If this is the correct answer, I still have a problem. I have to translate such formula to a C program. The problem is that I would need to separate complex and real parts in order to be able to compute transform's amplitudes...
And why do you need to translate to C++ when you have Mathematica. If you can't figure it out with Mathematica it is going to be a whole lot harder in C++. Could it be that you are more fluent in C++? Start becoming equally proficient in both.
I need to implement this result in an existing application written using C++, that's the point ! :-).
Thanks once more,
Yes I was trying to write 1/(2*Pi*4), I saw your examples and found you were not using "*" for multiplying so I thought it could be a syntax error. Now I get:
E^(-2 (u^2 + v^2))
EllipticTheta[3, 4 I \[Pi] u, E^(-8 \[Pi]^2)] EllipticTheta[3,
4 I \[Pi] v, E^(-8 \[Pi]^2)]
Which I still don't know if it is what I want because I don't really know what syntax Mathematica is expecting from me... :-)
If this is the correct answer, I still have a problem. I have to translate such formula to a C program. The problem is that I would need to separate complex and real parts in order to be able to compute transform's amplitudes...
Cheers,
Jose.
Thanks, I didn't know such function,
I have tried it but I get nothing, I just get for this:
F = FourierSequenceTransform[
1/(2 Pi 4) Exp[-0.5 (x^2 + y^2)/4], {x, y}, {u, v}]
This:
FourierSequenceTransform[E^(-0.125 (x^2 + y^2))/(
8 \[Pi]), {x, y}, {u, v}]
Any clues?
Hi all,
This is my first topic, let's see if I explain my problem properly...
I have the analytical expresion of a 2D data set (such dataset forms an image with indices running from -N to N for both x and y). The problem is that I would like to visually inspect the Fourier transform of such image (the real part, just discard the phase or unreal one). With such purpose, I would like to obtain the analytical expression for such transform (in terms of the new x and y coordinates) and fill an image using obtained values. By the way, I have both matlab and mathematica installed on my computer so I would really appreciate you can point me the practical way of doing this.
Hope the problem is clear. Thanks in advance
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