Unit step sequence Discrete-Time Signals and Systems--Digital Signal Processing w网60auu- a--收aaa4sa Representation in MATLAB *A:n=[n1:n2];x=zeros(1,n2-n2+1);xn0-n1+1:end)=1; *B:n=[n1:n2];X=[(n-n0)>=0]; stem(n,x,'ro'); 上游充通大Unit step sequence Discrete-Time Signals and Systems —— Digital Signal Processing ,0,0,1,1,1, 0, 0 1, 0 ( )         n n u n 1 2 1 0 2 0 0 0 , , 0, 1, ( ) n n n n n n n n n n u n n             Representation in MATLAB A: n=[n1:n2]; x=zeros(1,n2-n2+1); x(n0-n1+1:end)=1; B:n=[n1:n2]; x=[(n-n0)>=0]; stem(n,x,’ro’);