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+//Example 5.8
+//overlap and save method 
+clc;
+clear;
+close;
+x=[1,2,3,4,5,1,2,3,4,5,1,2,3,4,5];
+h=[3,2,1,1];
+L=5;
+M=length(h);
+N=1:L+M-1;
+n=length(N);
+
+h1=[h,zeros(1:4)];
+x1=[zeros(1:3),x(1:L)];
+x2=[x1(6:n),x(6:2*L)];
+x3=[x2(6:n),x(11:3*L)];
+
+//Circular Convolution by linear convolution and padding zeros method
+y1=conv(x1,h);
+y2=conv(x2,h);
+y3=conv(x3,h);
+
+y1(15:16)=0;
+c1=y1(1:8)+y1(9:16);
+y2(15:16)=0;
+c2=y2(1:8)+y2(9:16);
+y3(15:16)=0;
+c3=y3(1:8)+y3(9:16);
+
+//Display sequence y[n] in command window
+for i=1:L
+    y(i)=c1(i+3)
+end
+for i=6:2*L
+    y(i)=c2(i-2)
+end
+for i=11:3*L
+    y(i)=c3(i-7)
+end
+for i=16:18
+    y(i)=c1(i-15)
+end
+
+disp( "The convolution of x[n]=[1,2,3,4,5,1,2,3,4,5,1,2,3,4,5] and h[n]=[3,2,1,1] is ");
+disp(y,"y[n]=")