[Octave-bug-tracker] [bug #43742] ifft, ifft2, ifftn should accept 'nonsymmetric' and 'symmetric' options

[Guillaume]

Follow-up Comment #4, bug #43742 (project octave):

Coming across the missing 'symmetric' argument in Octave 6.0:
https://www.mathworks.com/help/matlab/ref/ifft.html#bvizm5c-1-symflag
https://www.mathworks.com/help/matlab/ref/ifft.html#bvizm5c-8

Does Octave test whether the input is conjugate symmetric or always use the
same FFTW routine? Does implementing 'symmetric' correspond to calling one of
these FFTW routines instead?
http://www.fftw.org/fftw3_doc/Real_002dto_002dReal-Transforms.html#Real_002dto_002dReal-Transforms

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