How to extract coefficient of difference equation in Matlab?

I have a difference equation below:

Y(t) = 6*x*(t)+4*x*(t-1)-6*x*(t-3)+2*Y*(t-1)

How to extract coefficient of difference equation

Answer 1

[Rohit Pappu]

To extract coefficient of difference equation, a possible workaround would be as follows -

• Convert difference equation into a f(z) using Z transforms. Documentation available here
• Extract thne coefficients of f(z) using sym2poly. Solution can be found here

[Rui Hou]

Okay!Thank you!