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[Octave-bug-tracker] [bug #45932] ifft(fft(x)) is not real for x real


From: Mike Miller
Subject: [Octave-bug-tracker] [bug #45932] ifft(fft(x)) is not real for x real
Date: Wed, 19 Sep 2018 20:59:41 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

Update of bug #45932 (project octave):

                  Status:               Confirmed => Duplicate              
             Open/Closed:                    Open => Closed                 
              Depends on:                         => bugs #43742            

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Follow-up Comment #4:

It seems to me that this bug is exactly bug #43742.

In the normal case, ifft(fft(rand(128,1))) returns a complex vector. If the
user wants to force the conjugate symmetric inverse transform, it should be
done with ifft(fft(rand(128,1)),'symmetric'). That is precisely bug #43742. I
don't think there is any other appropriate way to do this. Am I missing
something? Closing as a duplicate.

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Reply to this item at:

  <https://savannah.gnu.org/bugs/?45932>

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