how can i find specific value on step response plot?

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?

Answer 1

[KSSV]

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)

[Gihyun Kim]

thanks!!