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Title: Improve `acker` pole placement doc by pierre-haessig · Pull Request #1006 · python-control/python-control · GitHub

Open Graph Title: Improve `acker` pole placement doc by pierre-haessig · Pull Request #1006 · python-control/python-control

X Title: Improve `acker` pole placement doc by pierre-haessig · Pull Request #1006 · python-control/python-control

Description: Hello, This is a follow-up of #1004, still on pole placement, but now turning to acker docstring. As a first step, this adds a "See Also" section to place and place varga. However, I have two more ideas to extend this PR: add reference to the Ackermann's formula. I've found § 2.3.5 in the "Linear Control Theory" book by F. W. Fairman, 1998, but I'm not sure it matches perfectly with what's implemented. to the best of my (quite limited) knownledge, Ackermann's formula is for single input systems (and I got some linear algebra error on a test with a system with 2 inputs). If correct, I suggest to add a ValueError if B.shape[1] > 1.

Open Graph Description: Hello, This is a follow-up of #1004, still on pole placement, but now turning to acker docstring. As a first step, this adds a "See Also" section to place and place varga. However, I have...

X Description: Hello, This is a follow-up of #1004, still on pole placement, but now turning to acker docstring. As a first step, this adds a "See Also" section to place and place varga. However...

Opengraph URL: https://github.com/python-control/python-control/pull/1006

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Improve acker pole placement doc https://github.com/python-control/python-control/pull/1006/files#top
Show all changes 3 commits https://github.com/python-control/python-control/pull/1006/files
3a06aed add "See Also" to acker's doc pierre-haessig May 21, 2024 https://github.com/python-control/python-control/pull/1006/commits/3a06aed9c90585c9e0ddf5d0a49ce26d31ac6a7a
4f0e9b7 fix place_varga docstring pierre-haessig May 23, 2024 https://github.com/python-control/python-control/pull/1006/commits/4f0e9b7142b605979e84ef093fc3afdddbd3287d
60a7bfa Merge 'upstream/main' into doc-acker pierre-haessig May 23, 2024 https://github.com/python-control/python-control/pull/1006/commits/60a7bfaf945ca339b470f3ce15d189b853fa6d6f
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