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[Octave-bug-tracker] [bug #61667] [octave forge] (control) tf() function
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From: |
Torsten Lilge |
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Subject: |
[Octave-bug-tracker] [bug #61667] [octave forge] (control) tf() function gives wrong result for complex state space models |
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Date: |
Wed, 15 Dec 2021 13:41:11 -0500 (EST) |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36 |
Update of bug #61667 (project octave):
Status: None => Confirmed
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Follow-up Comment #2:
Confirmed with the simple example:
A = [ -1 0 ; 0 j ]; B = [ 1 ; 1 ]; C = [ 1 1 ]; D = 0;
sys_ss = ss (A,B,C,D);
eigenvalues_A = eig (A)
sys_tf = tf (sys_ss)
[n,d] = tfdata (sys_tf,'v');
poles_tf = roots (d)
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