Poopsilon
Newbie level 3
Is the spectral energy density:
(1) Just the sum of the magnitude of the points at which you've taken the fourier transform, i.e ∑ |X|.
(2) The sum of the absolute value squared of each of these points, i.e ∑ |X|^2.
(3) Or is it the absolute value squared of the sum, i.e | ∑ X |^2.
My professor said it was (2) in class, then in an email he said it was (1), and now I'm looking at the wikipedia article on Spectral Energy Density which is making me think it's (3).
(1) Just the sum of the magnitude of the points at which you've taken the fourier transform, i.e ∑ |X
(2) The sum of the absolute value squared of each of these points, i.e ∑ |X
(3) Or is it the absolute value squared of the sum, i.e | ∑ X
My professor said it was (2) in class, then in an email he said it was (1), and now I'm looking at the wikipedia article on Spectral Energy Density which is making me think it's (3).
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