zpk function for atlab R2020b

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Orr Streicher
Orr Streicher on 18 Nov 2021
Answered: Anshika Chourasia on 28 Dec 2021
Hey,
I tried to use the function 'zpk' (https://www.mathworks.com/help/control/ref/zpk.html) but got the following error:
"Unrecognized function or variable 'zpk'"
I work with Matlab 2020b and tried to run the code from the reference:
zeros = 0;
poles = [1-1i 1+1i 2];
gain = -2;
sys = zpk(zeros,poles,gain)
Am i doing something wrong?
Thanks

Answers (1)

Anshika Chourasia
Anshika Chourasia on 28 Dec 2021
Hi,
Function "zpk” is implemented in Control System Toolbox. Before moving forward, please check and verify the installation of CST toolbox.

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