[bug #68196] [octave forge] (control) Wrong phase in bode plot

"Dmitri A. Sergatskov" <[email protected]> Sat, 13 Jun 2026 08:32:19 -0400 (EDT)

Newsgroups	gmane.comp.gnu.octave.bugs
Message-ID	<[email protected]>

Please use the bug tracker to post updates to a bug report.  The mailing list is intended as a read-only notification stream.  Info posted to this mailing list address won't appear in the tracker database where it is most useful.

Follow-up Comment #16, bug #68196 (group octave):

What about attached:
(file control_bode_20260613_100.diff)
and patched package
(file control-4.2.2+_fixed_bode.tar.gz)

Essentially `dcgain` instead of going through s-s representation (where the
matrix is near singular and blas returns some numerical garbage), uses z-p-k
data instead .

Dmitri.
-- 


(file #58714, file #58715)

    _______________________________________________________

Additional Item Attachment:

Name: control_bode_20260613_100.diff Size: 5.4KiB

<https://file.savannah.gnu.org/file/control_bode_20260613_100.diff?file_id=58714>

Name: control-4.2.2+_fixed_bode.tar.gz Size: 3.1MiB

<https://file.savannah.gnu.org/file/control-4.2.2%2B_fixed_bode.tar.gz?file_id=58715>


    AGPL NOTICE

These attachments are served by Savane. You can download the corresponding
source code of Savane at
https://git.savannah.nongnu.org/cgit/administration/savane.git/snapshot/savane-c36938be85ff6c1b727bc7dd7fd30e48f9142870.tar.gz


    _______________________________________________________

Reply to this item at:

  <https://savannah.gnu.org/bugs/?68196>

_______________________________________________
Message sent via Savannah
https://savannah.gnu.org/

signature.asc (application/pgp-signature, 228 B)