1.program to signal folding.function[y,m]=signalfold(x,n)y=fliplr(x);m=-fliplr(n);end

clcclear allclose alln=[-2 -1 0 1 2 3];x=[2 4 5 3 -2 -1];subplot(2,1,1);stem(n,x);xlabel('no of samples');ylabel('x(n) ------');title('discete time signal');[y,m]=signalfold(x,n);subplot(2,1,2)stem(m,y);xlabel('no of samples');ylabel('x(n) ------');title('signal folding');