how can i find specific value on step response plot?

2020 9 4
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更新时间：2020 9 4
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I've wrote down a code as below
n=[1];
d=[1 3 5];
sys=tf(n,d);
step(sys)
and i got a plot as below
i wanna get a specific value for time, t.
how can i get it?

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KSSV
KSSV 2020-9-4

1 个投票

n=[1];
d=[1 3 5];
sys=tf(n,d);
[y,t] = step(sys) ;
plot(t,y)
Now you have the data, you can use interp1 to get the value.
ti = 2.5 ;
yi = interp1(t,y,ti)

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