[Octave-bug-tracker] [bug #65298] fft and ifft do not work correctly and do not agree with Matlab

[Dmitri A. Sergatskov]

Follow-up Comment #3, bug#65298 (group octave):

The function does not really matter. You can do something like:

octave:14> x = linspace(0,20,1001);
octave:15> y = cos(x)./sqrt(x+1);
octave:16> figure(1)
octave:17> plot(y)
octave:18> figure(2)
octave:19> plot(ifft(fft(y)))

Note, that if you do plot(x,y) and plot(x, ifft(fft(y)) it would be fine too.

Dmitri.
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