How to plot y(n) over the range of 0<n<50. the equation given is y(n) = 1.97y(n-1) - y(n-2)

the conditions for y(0) =0 and y(1) =1. do i need to use while statement?

Answer 1

[Star Strider]

Since the limits are stated, I would just use a for loop:

y(1) = 0;
y(2) = 1;
for n = 3:51
    y(n) = 1.97*y(n-1) - y(n-2);
end

figure(1)
plot(0:50, y)
grid

[mrbond99]

thank you. this really help me

[Star Strider]

As always, my pleasure!

Answer 2

[Andrei Bobrov]

out = filter(1,[1,-1.97,1],[0,1,zeros(1,49)]);
plot(0:50,out);

[mrbond99]

I don't understand much on this coding but it give the same output as the answer above. Anyway,thank you