+clear all;
+close all;
+clc;
+
+N = 3;
+NUMBER_OF_SAMPLES = 5;
+FILTER_COEFFICIENTS = [0.1 -0.1 0.4 1.0 -0.7 0.2 -0.9 -0.4 -0.8];
+x = [-9 4 -2 0 -3 0 8 3 6 0, ...
+ -7 -9 -5 2 1 2 8 -4 -6 -4];
+
+%example 6
+y = filter(1, [1 -0.5], x(1:10))
+
+%example 7
+y = filter(1, [1 -FILTER_COEFFICIENTS(1:N-1)], x (1:NUMBER_OF_SAMPLES))