digital signal processing linear sistem

%menentukan sistem linear atau nonlinear

x = randi(1,200,[0,100]);

%hitung sinyal

x1 = [x 0 0]; %x1[n] = x[n+1]

x2 = [0 x 0]; %x1[n] = x[n]

x3 = [0 0 x]; %x1[n] = x[n-1]

y1 = x1 + 2*x2 - 3*x3;

y2 = 5*x1 + 2*(5*x2) - 3*(5*x3);

y3 = 5*y1;

%tentukan jumlah bilangan yang salah

jumlah_salah = symerr(y2,y3)