Step Response of Transfer Function

4 views (last 30 days)
Hello so am trying to plot the step response of this trasnsfer function , but am not really sure how do i need to write it down in den = part , any help would be great thanks. .
t=0:0.01:5;
num = 1;
den = [1 2 17];
sys = tf(num, den);
y = step(sys,t);
plot(t,y*4)
  2 Comments
Sam Chak
Sam Chak on 23 Nov 2023
The original question may be beneficial to people who wish to learn how to plot the step response.
Rena Berman
Rena Berman on 27 Nov 2023
(Answers Dev) Restored edit

Sign in to comment.

Accepted Answer

Yongjian Feng
Yongjian Feng on 20 Jan 2022
Edited: Yongjian Feng on 20 Jan 2022
Get help by doing:
help tf
Basically, you need to expand the denominator given in image into polynomial of s. Then take the coefficients and put into den. For example, if you expand it into 2*s^2+5*s+10, then den = [2 5 10].
To expand the denominator, you can do it manually or you can use the expand function of matlab.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!