Transfer function 'tf'
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Aurore Lecharlier
le 16 Fév 2016
Commenté : Jerry Maravilla
le 27 Sep 2021
Hi, in Matlab R2015b, I used the commando ' tf ' for the transfer function. When I run the script where I used it, I get an error message ' undefined function or variable 'tf' '. How do we get or create this function 'tf' ? I thought it was an inherent function of matlab. Thank you.
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Walter Roberson
le 16 Fév 2016
http://www.mathworks.com/help/control/ref/tf.html Control System Toolbox
http://www.mathworks.com/help/signal/ref/tf.html Signal Processing Toolbox
http://www.mathworks.com/help/mpc/ref/tf.html Model Predictive Control Toolbox
You need one of those three.
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Akella Kartik
le 22 Sep 2021
I have the isseu in 2021a as well. I installed both Signal Processing Toolbox and the DSP System Toolbox, but still I get this:
Unrecognized function or variable 'tf'. for tf and
'tf' not found. for which tf
Jerry Maravilla
le 27 Sep 2021
Try the control system tool box. If that doesn't work you can just use matlab's online editor. Doesn't fix the issue but you'll be able to run your code.
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