How do filtic and filter functions work ?

%   y[n]+y[n-1]-6y[n-2]=x[n]

% x[n]=8u[n]

   % y[-1]=1, y[-2]=-1

[Jan]

The question is not clear. What is the relation between the header and the code?

[Ahmed Grera]

solve this difference equation by filter and filtic function

[Ahmed Grera]

And what is different between them ?

[Jan]

Please take the time to ask the question more clearly.

Answer 1

[Valeria Delgado]

% try

%y[n]+y[n-1]-6y[n-2]=x[n]

% x[n]=8u[n]

% y[-1]=1, y[-2]=-1

%Para n=3

x=[8 8 8 8]

num=[1]

den=[1 1 -6]

ic=filtic(num,den,[1 -1]);

y=filter(num,den,x,ic);