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fft2
Chris Petersen edited this page Oct 16, 2014
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1 revision
fft2 returns the 2d-fft of a list of lists.
Parameter | Description |
---|---|
lstlst | List of lists of real/complex numbers operated on |
Example 1: Calculate FFT of a matrix
> (fft2 (list (list 1 2 3 4 5 6 7 8)(list 1 2 3 4 5 6 7 8)
(list 1 2 3 4 5 6 7 8)(list 1 2 3 4 5 6 7 8)
(list 1 2 3 4 5 6 7 8)(list 1 2 3 4 5 6 7 8)
(list 1 2 3 4 5 6 7 8)(list 1 2 3 4 5 6 7 8)))
((288.+0.i
-32.+77.25483703613281i
-32.+32.i
-32.+13.254833221435547i
-32.+0.i
-32.-13.254833221435547i
-32.-32.i
-32.-77.25483703613281i)
(0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i)
(0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i)
(0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i)
(0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i)
(0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i)
(0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i)
(0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i 0.+0.i))
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