%  ex_13_04_1.m :  習題 13.4

clear all;
close all;

for k=1:20
    x(k)=0.15^(k-1);
    h(k)=0.8^(k-1);
end
y=conv(x,h);
y(1:10)

xq=truncation(x,8);
hq=truncation(h,8);
yq=conv(xq,hq);
yq(1:10)
y(1:10)-yq(1:10)

xq=rounding(x,8);
hq=rounding(h,8);
yq=conv(xq,hq);
yq(1:10)
y(1:10)-yq(1:10)