bugGNU Octave - Bugs: bug #43742, ifft, ifft2, ifftn should accept...


bug #43742: ifft, ifft2, ifftn should accept 'nonsymmetric' and 'symmetric' options

Submitted by:  Mark <mb1234>
Submitted on:  Tue 02 Dec 2014 08:31:04 PM UTC  
Category:  Octave Function Severity:  1 - Wish
Priority:  3 - Low Item Group:  Feature Request
Status:  Confirmed Assigned to:  None
Originator Name:  Open/Closed:  Open
Release:  dev Operating System:  Any

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Wed 12 Feb 2020 06:27:04 PM UTC, comment #4: 

Coming across the missing 'symmetric' argument in Octave 6.0:

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?

Guillaume <gyom>
Fri 16 Aug 2019 10:41:27 AM UTC, comment #3: 

Still missing in 4.4.1 (Ubuntu 19.04).

Sun 18 Dec 2016 08:05:34 PM UTC, comment #2: 

This feature is still missing in Octave 4.2.0.

Hartmut <hardy>
Wed 03 Dec 2014 01:24:31 AM UTC, comment #1: 

Thanks for your bug report. This change will also need to be applied to the ifft2 and ifftn functions.

Mike Miller <mtmiller>
Project Administrator
Tue 02 Dec 2014 08:31:04 PM UTC, original submission:  

I just came across some MATLAB code with 'symmetric' used as an argument to ifft. The documentation page describles it:


Current version of Octave 3.8.2 doesn't accept it:

octave:78> ifft([1 1 1 1],'symmetric')
error: invalid conversion from string to real scalar

Mark <mb1234>


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    Follow 13 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2020-07-24 jwe Dependencies- => bugs #58819 is dependent
    2020-02-12 gyom Carbon-Copy- => Added gyom
    2019-02-27 mtmiller Priority5 - Normal => 3 - Low
    2018-09-20 mtmiller Carbon-CopyRemoved 80942 => -
    2018-09-20 mtmiller Severity3 - Normal => 1 - Wish
        Item GroupMatlab Compatibility => Feature Request
        SummaryMATLAB compatibility - ifft symmetric keyword => ifft, ifft2, ifftn should accept 'nonsymmetric' and 'symmetric' options
    2018-09-20 mtmiller Dependencies- => bugs #45932 is dependent
    2014-12-03 mtmiller CategoryNone => Octave Function
        Item GroupNone => Matlab Compatibility
        StatusNone => Confirmed
        Release3.8.2 => dev
        Operating SystemGNU/Linux => Any

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