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2-D FFT of a matrix
From: |
Frederic Devernay |
Subject: |
2-D FFT of a matrix |
Date: |
Mon, 28 Mar 1994 14:38:47 +0200 |
what should return fft() when called on a matrix?
octave returns the matrix formed by the ffts of the columns of the
matrix. Shouldn't it return the 2-D fft of the matrix instead?
after all, why does it return the fft of the colums and not of the
rows?
fred
P.S: to calculate the 2-d fft of a matrix, one has to compute fft(fft(X)')'
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