HW 3.7 - Joseph Yu ECE301 Summer2009 - Rhea

function y = myconv(x1,x2)

x3=fliplr(x2);

len1=length(x1);

len2=length(x2);

len3=len1+len2-1;

len4=len2-1;

y=zeros(1,len3);

for q=1:1:len3

q1=q+len4;

n2=zeros(1,len3);

n2([q:q1])=x3;

len5=length(n2);

n1=zeros(1,len5);

n1([len2:len3])=x1;

c1=n1.*n2;

c2=0;

for i=1:1:len3

c2=c2+c1([i]);

end

sum=c2

y([q])=sum

end

t=length(y);

t2=(t-1)/2;

v=-t2:1:t2;

subplot(3,1,1),stem(x1,'g*');

subplot(3,1,2),stem(x2,'b*');

subplot(3,1,3),stem(v,y,'r*');