Example #2: recursive difference equation

Finite length, discrete-time sequence 

[Graphics:../Images/index_gr_17.gif]
[Graphics:../Images/index_gr_18.gif]

Definition of difference equation

Initial condition 
[Graphics:../Images/index_gr_19.gif]
Difference equation 
[Graphics:../Images/index_gr_20.gif]

Input sequence plot 

[Graphics:../Images/index_gr_21.gif]

[Graphics:../Images/index_gr_22.gif]

Output sequence plot 

[Graphics:../Images/index_gr_23.gif]

[Graphics:../Images/index_gr_24.gif]

Converted by Mathematica      January 17, 2003