FFT output changes depending on row column vector

[Keith Bannister]

Hi,

Please don't flame me, but I'm having a really weird issue.

I was hoping taking the FFT of a row would give the the same result as
the transpose of the fft of a column. The FFT of a column seems to be
some weird reversed version of what I expect.

Here's some code:

octave2.9:85> version
ans = 2.9.9
octave2.9:81> x = exp(2*pi()*I()*4*[1:32]/32);
octave2.9:101> sumsq(fft(x) - fft(x')')
ans =  2048.0
octave2.9:102> [maxv, maxi] = max(abs(fft(x)))
maxv =  32
maxi =  5
octave2.9:103> [maxv, maxi] = max(abs(fft(x')'))
maxv =  32
maxi =  29

The documentation (and google AFAIK) don't mention this. Do I have a
duff installation or something?

-- 
Keith Bannister