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Fourier transform for a sequence of values

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Iftekharuddin Syed
Iftekharuddin Syed le 20 Déc 2020
Commenté : the cyclist le 20 Déc 2020
There is a signal x(n) = [5 3 -4 2 8]. How to find the Fourier Transform of the signal x(n).

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the cyclist
the cyclist le 20 Déc 2020
fft(x)
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Iftekharuddin Syed
Iftekharuddin Syed le 20 Déc 2020
I mean how to find X(k) for k=1.
the cyclist
the cyclist le 20 Déc 2020
That is a very straightforward formula to code into MATLAB. For example, the exponential bit could be written
exp(-i .* 2*pi * k .* n ./ N)
It is usually pretty straightforward to translate simple math formulas into MATLAB.
But this is not the best place to learn all the MATLAB you need to know in order to write this code. I recommend watching the MATLAB Onramp video.

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