I tried plotting a transfer function using sisotool() and step(), but they give different step diagrams. I tried this in 2017b and 2018 versions of matlab and they give the same result. I found this: https://uk.mathworks.com/matlabcentral/answers/385481-why-do-i-get-an-incorrect-step-response-plot-from-the-control-system-designer but it says the bug should be fixed in 2017b? My code is below:
TF = tf([1,3],[1,4,6,3]);step(TF);sisotool(TF);
These are the plots they give:
step():
sisotool:
Thanks for any help.
Best Answer